**A Review of the 4K Monitor: A399**

The 4K monitor, known as the A399, is an incremental upgrade over its predecessor, the A399. While it may not be perfect, this display offers improved brightness and a flickering backlight, which is a major step forward in terms of user experience.

One notable aspect of the A399 is its bezel design. The metal frame surrounding the monitor provides a nice aesthetic touch, but the rest of the case is made from a textured vacuum-formed plastic. This texture contributes to a reduction in edge shadowing, making the display feel sturdier than expected. However, if you're nitpicky and expect a perfect monitor, be aware that there is still some edge shadowing present.

The mounting situation on this monitor is also worth mentioning. The 200mm x 200mm Visa mount standard issue is similar to the A399's design, but with an extended pegs past the end of the case, which works out better than its predecessor in our opinion. Additionally, included in the box is a fixed glass base, which serves as a glass plate with holes drilled into it and aluminum standoffs for securing the monitor.

In terms of usage, this monitor has proven to be an excellent choice for programming and gaming. Its 4K resolution at 40 inches provides a stunning viewing experience, and its improved backlight makes it easier on the eyes. The promise of FreeSync technology also ensures that the display will work seamlessly with compatible graphics cards, providing smooth gameplay and reducing screen tearing.

**Comparison to Other Monitors**

For those considering purchasing this monitor, it's worth noting that the A399 is available at a discounted price, making it an attractive option for those who want 4K resolution without breaking the bank. However, if you're looking for a higher-end monitor with more advanced features, such as overclockability or higher frame rates at lower resolutions, you may need to look elsewhere.

In fact, this monitor's success has already led to a decrease in prices of other high-end 4K monitors on the market. It's likely that manufacturers will take note of this trend and offer their own competing products with similar features and specifications.

**Experiences from Users**

One thing that sets this monitor apart is the experience it provides for its users. As one user noted, "I was skeptical at first, but using it as a TV was transformative." Another user reported that they never want to go back to lower resolutions after experiencing the benefits of 4K at 40 inches.

The Tech Syndicate Forum has already seen numerous threads and posts from users who have purchased this monitor, sharing their experiences and opinions on its performance. It's clear that many users are impressed with the display's performance and features, making it a great choice for those looking to upgrade their gaming or programming setup.

**Conclusion**

Overall, the 4K monitor A399 is an excellent choice for those looking to upgrade their display experience. Its improved brightness, flickering backlight, and FreeSync technology make it an attractive option for gamers and programmers alike. While it may not be perfect, this monitor has already proven itself to be a great value for its price. We hope that manufacturers will take note of this trend and offer more advanced features in their own products, but for now, the A399 is a solid choice for those looking to enter the world of 4K displays.

**Technical Specifications**

* Display size: 40 inches

* Resolution: 3840 x 2160 pixels

* Refresh rate: up to 144Hz

* Panel type: IPS

* Backlight: Flickering LED backlight

* Connectivity: HDMI, DisplayPort, USB

* Power consumption: up to 100W

**Additional Features**

* FreeSync technology for reduced screen tearing and smooth gameplay

* 200mm x 200mm Visa mount standard issue

* Fixed glass base with holes drilled into it and aluminum standoffs

* Included Allen wrench for adjusting the display's position

"WEBVTTKind: captionsLanguage: enso it turns out we may have gone 4K crazy and we've got another 4k 40-in monitor for you to look at today all right so we've taken a look at the amh a399 U and the Wasabi mango 42 in UHD 420 I think for this one this is the amh 49u this is sort of the spiritual successor or successor I guess to the a399 now the a399 was not a perfect monitor but it was pretty good it was actually really impressively good considering the price point and the features it's kind of weird cuz you have to order it on eBay or otherwise import it from South Korea but we're going to take a look at the amh 49 U the a49 U uh this monitor is massive look I I've been a member of the wall o monitors Club since 1998 and having fewer larger monitors versus a bunch of smaller ones probably is the way to go honestly I really didn't think like that until actually laying hands on a 40-in display I like the 27in displays but I also like having some ancillary 1920 x 1200 and 1920x 80 displays with 4K I can still have my ancillary 1920 x1080 displays and 1920 X200 displays but also roll with my 4K so overall until 5K monitors come out in about 45 in or 46 in the 4k 40in monitor is probably what I'm going to rock and surprisingly uh we have a forum post about this Monitor and the a399 and some other 40-in monitors cuz 4K and 40 in it really makes sense for a lot of reasons if you've used a 27 in 25 60 x440 Resolution display the amount of pixels that you get in that 27in monitor uh the density of those pixels is basically the same at 4K 40 in so we're talking about 108 pixels per inch give or take and at that resolution the display is just 40 in big instead of 27 in big so in terms of like the size of stuff on your display it's the same size on a 27 in as a 40 in it's just on the 40 in you've got a lot more pixels the other thing that factors in here is that a windows display scaling is basically awful and so 4K works really well because you don't have to use windows display scaling you can use everything sized at 100% And yeah it's kind of small but your display is 40 in it's like having four 1920 x 1080 monitors in a 2X two configuration this is a really really solid setup uh Windows 10 even has quadrant maximization you can hit window up window down window left window right and the windows will maximize either the half the screen or a quadrant of the screen a 1920 x 1080 quadrant of the screen that works really well and that's not just specific to this monitor that's just 4K in general because you may be sitting here watching this thinking wow you're a crazy person why would you ever want a 40in display on your computer don't knock it till you tried it we really have to step back for a minute and think the people in South Korea are really innovating here I haven't seen anything like this state side and I think that just this approach is really Innovative it's 4K it's 40 in they're not really TVs they're TVs they're sort of kind of being customized to be computer displays because there are not really a lot of computer display manufacturers that are figuring that anybody wants to go with a 4K display I wouldn't be surprised if Apple comes out with a 40-inch iMac that has like an 8K resolution or something like that that's how transformative this thing is it's like oh video production iMac but that's a story for another time and I'll mention it while I'm thinking about it because I'll probably forget later the pixel layout on these monitors is a blue green red layout now these monitors all use the super MVA uh format it's a VA panel which puts it somewhere between IPS in terms of quality and TN so it's a better display in general than a TN display but it's not as good as IPS in terms of color reproduction ntsc gamut things like that there are conflicting bits of information in the spec PDF on the super MVA panel to know what it's true ntsc color gamut is and to to know the Adobe srgb color space so if you're into that kind of thing you probably should head on over to the forums at Tech syndicate.com so you can take a look at the thread there because there's a bunch of adobe people in there generally I can tell you that there is a little bit of color bleed that's also true on the a399 but it's so much better than the Phillips because we were sideb siding this with the Phillips 4K display that's also really popular on the internet for the same reasons and the bleed is way way better on this monitor than the Phillips the Phillips has got awful bleeding and when we did the testing it was like oh let's do the testing oh no bleed cuz we were looking for bleed as bad as the Phillips bleed well it turns out on a 50% gray you get a little bit of bleed but it's not insane L terrible so if that's a showstopper for you just just be aware of it these monitors are not perfect but they're pretty damn good now with the super MVA panel blacks are deep and whites are bright uh one big improvement over the a399 is that this display has a flicker free backlight now this display unlike the a399 comes at about 50% brightness and the brightness can actually go up quite a bit from where it is although I don't think you'll really want to set the brightness much past 60 or 70 because at those brightnesses the blacks are not as black out of the box a brightness of 50 or 60 for me for my preferences I found it to be pretty good whereas on the a399 I was cranking it so subjectively backlight uniformity and backlight brightness is very very much improved over the a399 the biggest Improvement of course is that the backlight is flicker free now the internal controller on this has also been swapped I think it's a different setup or a different brand uh this seems to be the same uh controller vendor uh as we saw in the Wasabi mango now the Wasabi mango was freesync this display as I reviewed it was not freesync but I do know of another monitor that has the exact same controller and that monitor is free sync and so we've got a video coming up on that monitor as well 4K 40 in super MVA different vendor same similar components different aesthetic and I kind of like that monitor too and the fact that there are so many monitors around this price point that are delivering a really good value is only good for the consumer we're going to have some really amazing 4K displays probably next year I mean maybe next year we'll get our Dream display of 4K 120 HZ at 1080p freesync and g-sync support 40 in you know the whole 9 yards cuz nobody seems interested in building that kind of a monitor or you know they they do but it's you know $1,500 or you can almost buy three of these for that at least at the time of this video at least in America now with that swapped controller you can actually overclock it although you start to get significant frame drops much past 70 HZ you're not going to be overclocking it at 4K there's just not enough bandwidth for that but if you run it at 1080p you can get about 70 HZ at least on the model that I had before you started getting significant frame drops if you can't game at 4K don't worry because 4K is an exact multiple of 1080p you can scale this display to 1080p set up your game resolution to be 1080P and actually looks really good on this display now this display unlike the a399 also includes options in the onscreen controls and let me tell you you're going to want to fiddle with stuff in the onscreen controls the first thing you're going to want to do when you take this out of the box is configure it uh to be in English because out of the box it comes in not English and you'll probably want to set that to English there are also controls for gamma it's 2.4 out of the box color correction you've got individual control of red green and blue um there's also an option for whether or not you're doing processing or filtering and so this is something that I played with I was curious about what the overall latency was so I set up a CRT monitor sort of versus this Monitor and from the testing the CRT monitor was about four frames per second ahead of this particular monitor so playing with the onscreen controls and the different settings and setting the latency mode to low I was actually able to shave about 16 to 20 milliseconds off of that figure um 64 milliseconds is is sort of the overall uh number that you would expect when the monitor is running about four frames behind a CRT and so being able to save 16 milliseconds maybe 20 milliseconds depending on how you average the numbers and put it together it's hard to do this with a camera and get something that's mostly accurate but uh we do with what we've got so overall you'll probably want to play with that in terms of like the color bleed that I mentioned before this actually is also something that is affected a little bit by the onscreen controls although it seems like for some of the onscreen controls you actually have to power from the display and plug it back in in order for those changes to take effect some of the effects take effect immediately other effects not so much one other cool thing with the on-screen display uh for this monitor is that you can hit a crosshairs button and you'll get crosshairs on your display no matter what's on the screen you're going to have crosshairs in the middle of the screen that's a pretty neat feature I know a lot of high-end and gaming monitors have had that feature for a long time but it's pretty unusual to see it at a monitor at this price point so again you know kudos to the Koreans for doing such a good job knowing their market and knowing that people like us are buying these kinds of displays yeah it's not perfect but it's pretty darn good the inputs include HDMI 2.0 HDMI 1.4 display port 1.2 and VGA which is kind of weird and it also has Optical spdif and a USB Service Port now this USB Service Port will allow us to upgrade the firmware I have seen other 40in 4K displays that are free sync compatible using the same controller that's in this display but I have not yet seen a firmware upgrade file that we could put on a USB drive to up upgrade this panel to freesync compatibility theoretically it should exist but I haven't seen it I also can't speculate as to what the freyn range would be my guess would probably be 45 to 60 frames per second although it may be as low as 42 frames per second to 60 frames per second on freesync but that's just speculation both the HDMI 2.0 port and the display port 1.2 Port can drive 4K at 60 HZ with the 444 chroma interestingly unlike the a399 this display does not report 10bit color per pixel it only reports 8 bit color per pixel so I think the controller in the a399 is approximating those last two bits at least that's what I've read from looking at the specs for this actual MVA panel is that the controller on the a399 is doing some type of interpolation to get those last two bits per pixel so just know that this thing is 8 bits per pixel now I didn't have any trouble with hdcp 2.2 except for sometimes when the display went to sleep although I think that was sort of down to a dodgy display port cable remembering the display port cable that came with the a399 the display port cable that came with this one was a lot better and it basically was fine out of the box I was able to plug it in use it it instantly hit 4K 60 HZ no problem syncing up I did my testing on an Asus 390x and an Asus 980 tie uh both of those were the stxs Edition versions of those cards so I was sort of pleasantly surprised that nothing weird happened except for display sleep stuff like the display would go to sleep and wake up and go to sleep wake up that was with the 390x updated the Catalyst drivers tried a different cable and it was fine then I switched back to the other cable and it was still fine so just know that if you're moving the display around and you've got the cable plugged in that it's super sensitive about moving it around with the cable so that's just a quirk something to keep in mind just letting you know aesthetically the case is plastic but it is finished with a metal frame the a399 was available with and without glass without the glass they just didn't mount it so the bezel kind of looked like something was missing then they tried a metal Mount and so it was kind of weird this does not come with glass there's not an option for glass that I know of at least at the time is the shooting of the video uh the bezel is a really nice sort of metal frame but the rest of the monitor case is like this kind of textured vacuum formed plastic uh the monitor does feel a lot sturdier and I think that that is what contributes to the reduction in Edge shadowing so this display does have a little bit of edge shadowing on the edges but overall it's improved over the a399 The Edge shadowing is not as pronounced as it was on the a399 but if you're really nitpicky and you're expecting a perfect monitor don't expect a perfect monitor there is a little bit of edge shadowing but for me the edge shadowing was not really a big deal just be aware of it the mounting situation here with this monitor is a 200 mm x 200 mm Visa mount standard issue basically the same as the a399 they did extend the pegs past the end of the case in this case so that works out a little better than the a399 in my opinion also included in the box is a fixed glass base this is basically a glass plate with some holes drilled in it and some aluminum standoffs with some little rubber things to make sure that you don't break the glass it also includes an allen wrench so you can tighten down the bolts although you'll want to just snug them you won't actually want to tighten them because that could weaken the glass and be very bad cuz then you'd have broken glass in your hands and that sort of thing me personally I like using these displays with monitor arms or other Mounting Solutions works great you know you can do a wall mount arm mount whatever you want to do just be sure that you can get an arm that can carry the weight of these things all in all this monitor like the a399 is not perfect but it is an incremental upgrade over the a399 as a result the a399 is also on fire sale so if you'd like to pick up an a399 that pwm backlight or flickering backlight doesn't really bother you too much in General on monitors then uh you should pick up an a399 cuz they're on fire cell but this monitor with the improved brightness and the improved backlight and the promise of free Sync It's a pretty good deal it's not really that much more expensive than the a399 uh and it is dramatically way cheaper than the other higher-end monitors and the other good thing about these monitors is that it's going to drive the prices of other higher-end 4K monitors down I would like to see a you know a topshelf manufacturer actually sanction this kind of thing actually put together a dream monitor you know 4K the overclockability or higher frame rates at you know lower resolutions there exists TVs that will do 120 HZ at 1080p but no display port input so the panels are out there I know they exist the Wasabi mango has an IPS panel an LG IPS panel for example it can do 120 HZ but the controller can't keep up with it so we need those controllers it's going to be a really interesting year for 4K monitors and 40 in is in we've also got some threads you should check out on the Forum at Tech syndicate.com this monitor's already got a really long thread so people went ahead and bit the bullet and bought it ahead of this review because the a399 was was so good so you should go check that out there's also a huge thread with kazillion posts about the a399 in the forums at Tech syndicate.com so if you bought one of these share your experience good or bad we want to hear from you all in all I've been really impressed by uh the experiences that people have posted on the tech Syndicate forums with these monitors and they're like you know I was a little skeptical but 500 bucks I figured I could use it as a TV oh my God it was transformative it's amazing you're welcome so yeah I I didn't think this would be anything either but using it and actually like programming and stuff like that with it oh my goodness it is transformative it is crazy I'm never going back from 4K at 40 in so if you got one of these I want to hear from you if you're thinking about buying head on over to the Forum I'll see you there and window signing outso it turns out we may have gone 4K crazy and we've got another 4k 40-in monitor for you to look at today all right so we've taken a look at the amh a399 U and the Wasabi mango 42 in UHD 420 I think for this one this is the amh 49u this is sort of the spiritual successor or successor I guess to the a399 now the a399 was not a perfect monitor but it was pretty good it was actually really impressively good considering the price point and the features it's kind of weird cuz you have to order it on eBay or otherwise import it from South Korea but we're going to take a look at the amh 49 U the a49 U uh this monitor is massive look I I've been a member of the wall o monitors Club since 1998 and having fewer larger monitors versus a bunch of smaller ones probably is the way to go honestly I really didn't think like that until actually laying hands on a 40-in display I like the 27in displays but I also like having some ancillary 1920 x 1200 and 1920x 80 displays with 4K I can still have my ancillary 1920 x1080 displays and 1920 X200 displays but also roll with my 4K so overall until 5K monitors come out in about 45 in or 46 in the 4k 40in monitor is probably what I'm going to rock and surprisingly uh we have a forum post about this Monitor and the a399 and some other 40-in monitors cuz 4K and 40 in it really makes sense for a lot of reasons if you've used a 27 in 25 60 x440 Resolution display the amount of pixels that you get in that 27in monitor uh the density of those pixels is basically the same at 4K 40 in so we're talking about 108 pixels per inch give or take and at that resolution the display is just 40 in big instead of 27 in big so in terms of like the size of stuff on your display it's the same size on a 27 in as a 40 in it's just on the 40 in you've got a lot more pixels the other thing that factors in here is that a windows display scaling is basically awful and so 4K works really well because you don't have to use windows display scaling you can use everything sized at 100% And yeah it's kind of small but your display is 40 in it's like having four 1920 x 1080 monitors in a 2X two configuration this is a really really solid setup uh Windows 10 even has quadrant maximization you can hit window up window down window left window right and the windows will maximize either the half the screen or a quadrant of the screen a 1920 x 1080 quadrant of the screen that works really well and that's not just specific to this monitor that's just 4K in general because you may be sitting here watching this thinking wow you're a crazy person why would you ever want a 40in display on your computer don't knock it till you tried it we really have to step back for a minute and think the people in South Korea are really innovating here I haven't seen anything like this state side and I think that just this approach is really Innovative it's 4K it's 40 in they're not really TVs they're TVs they're sort of kind of being customized to be computer displays because there are not really a lot of computer display manufacturers that are figuring that anybody wants to go with a 4K display I wouldn't be surprised if Apple comes out with a 40-inch iMac that has like an 8K resolution or something like that that's how transformative this thing is it's like oh video production iMac but that's a story for another time and I'll mention it while I'm thinking about it because I'll probably forget later the pixel layout on these monitors is a blue green red layout now these monitors all use the super MVA uh format it's a VA panel which puts it somewhere between IPS in terms of quality and TN so it's a better display in general than a TN display but it's not as good as IPS in terms of color reproduction ntsc gamut things like that there are conflicting bits of information in the spec PDF on the super MVA panel to know what it's true ntsc color gamut is and to to know the Adobe srgb color space so if you're into that kind of thing you probably should head on over to the forums at Tech syndicate.com so you can take a look at the thread there because there's a bunch of adobe people in there generally I can tell you that there is a little bit of color bleed that's also true on the a399 but it's so much better than the Phillips because we were sideb siding this with the Phillips 4K display that's also really popular on the internet for the same reasons and the bleed is way way better on this monitor than the Phillips the Phillips has got awful bleeding and when we did the testing it was like oh let's do the testing oh no bleed cuz we were looking for bleed as bad as the Phillips bleed well it turns out on a 50% gray you get a little bit of bleed but it's not insane L terrible so if that's a showstopper for you just just be aware of it these monitors are not perfect but they're pretty damn good now with the super MVA panel blacks are deep and whites are bright uh one big improvement over the a399 is that this display has a flicker free backlight now this display unlike the a399 comes at about 50% brightness and the brightness can actually go up quite a bit from where it is although I don't think you'll really want to set the brightness much past 60 or 70 because at those brightnesses the blacks are not as black out of the box a brightness of 50 or 60 for me for my preferences I found it to be pretty good whereas on the a399 I was cranking it so subjectively backlight uniformity and backlight brightness is very very much improved over the a399 the biggest Improvement of course is that the backlight is flicker free now the internal controller on this has also been swapped I think it's a different setup or a different brand uh this seems to be the same uh controller vendor uh as we saw in the Wasabi mango now the Wasabi mango was freesync this display as I reviewed it was not freesync but I do know of another monitor that has the exact same controller and that monitor is free sync and so we've got a video coming up on that monitor as well 4K 40 in super MVA different vendor same similar components different aesthetic and I kind of like that monitor too and the fact that there are so many monitors around this price point that are delivering a really good value is only good for the consumer we're going to have some really amazing 4K displays probably next year I mean maybe next year we'll get our Dream display of 4K 120 HZ at 1080p freesync and g-sync support 40 in you know the whole 9 yards cuz nobody seems interested in building that kind of a monitor or you know they they do but it's you know $1,500 or you can almost buy three of these for that at least at the time of this video at least in America now with that swapped controller you can actually overclock it although you start to get significant frame drops much past 70 HZ you're not going to be overclocking it at 4K there's just not enough bandwidth for that but if you run it at 1080p you can get about 70 HZ at least on the model that I had before you started getting significant frame drops if you can't game at 4K don't worry because 4K is an exact multiple of 1080p you can scale this display to 1080p set up your game resolution to be 1080P and actually looks really good on this display now this display unlike the a399 also includes options in the onscreen controls and let me tell you you're going to want to fiddle with stuff in the onscreen controls the first thing you're going to want to do when you take this out of the box is configure it uh to be in English because out of the box it comes in not English and you'll probably want to set that to English there are also controls for gamma it's 2.4 out of the box color correction you've got individual control of red green and blue um there's also an option for whether or not you're doing processing or filtering and so this is something that I played with I was curious about what the overall latency was so I set up a CRT monitor sort of versus this Monitor and from the testing the CRT monitor was about four frames per second ahead of this particular monitor so playing with the onscreen controls and the different settings and setting the latency mode to low I was actually able to shave about 16 to 20 milliseconds off of that figure um 64 milliseconds is is sort of the overall uh number that you would expect when the monitor is running about four frames behind a CRT and so being able to save 16 milliseconds maybe 20 milliseconds depending on how you average the numbers and put it together it's hard to do this with a camera and get something that's mostly accurate but uh we do with what we've got so overall you'll probably want to play with that in terms of like the color bleed that I mentioned before this actually is also something that is affected a little bit by the onscreen controls although it seems like for some of the onscreen controls you actually have to power from the display and plug it back in in order for those changes to take effect some of the effects take effect immediately other effects not so much one other cool thing with the on-screen display uh for this monitor is that you can hit a crosshairs button and you'll get crosshairs on your display no matter what's on the screen you're going to have crosshairs in the middle of the screen that's a pretty neat feature I know a lot of high-end and gaming monitors have had that feature for a long time but it's pretty unusual to see it at a monitor at this price point so again you know kudos to the Koreans for doing such a good job knowing their market and knowing that people like us are buying these kinds of displays yeah it's not perfect but it's pretty darn good the inputs include HDMI 2.0 HDMI 1.4 display port 1.2 and VGA which is kind of weird and it also has Optical spdif and a USB Service Port now this USB Service Port will allow us to upgrade the firmware I have seen other 40in 4K displays that are free sync compatible using the same controller that's in this display but I have not yet seen a firmware upgrade file that we could put on a USB drive to up upgrade this panel to freesync compatibility theoretically it should exist but I haven't seen it I also can't speculate as to what the freyn range would be my guess would probably be 45 to 60 frames per second although it may be as low as 42 frames per second to 60 frames per second on freesync but that's just speculation both the HDMI 2.0 port and the display port 1.2 Port can drive 4K at 60 HZ with the 444 chroma interestingly unlike the a399 this display does not report 10bit color per pixel it only reports 8 bit color per pixel so I think the controller in the a399 is approximating those last two bits at least that's what I've read from looking at the specs for this actual MVA panel is that the controller on the a399 is doing some type of interpolation to get those last two bits per pixel so just know that this thing is 8 bits per pixel now I didn't have any trouble with hdcp 2.2 except for sometimes when the display went to sleep although I think that was sort of down to a dodgy display port cable remembering the display port cable that came with the a399 the display port cable that came with this one was a lot better and it basically was fine out of the box I was able to plug it in use it it instantly hit 4K 60 HZ no problem syncing up I did my testing on an Asus 390x and an Asus 980 tie uh both of those were the stxs Edition versions of those cards so I was sort of pleasantly surprised that nothing weird happened except for display sleep stuff like the display would go to sleep and wake up and go to sleep wake up that was with the 390x updated the Catalyst drivers tried a different cable and it was fine then I switched back to the other cable and it was still fine so just know that if you're moving the display around and you've got the cable plugged in that it's super sensitive about moving it around with the cable so that's just a quirk something to keep in mind just letting you know aesthetically the case is plastic but it is finished with a metal frame the a399 was available with and without glass without the glass they just didn't mount it so the bezel kind of looked like something was missing then they tried a metal Mount and so it was kind of weird this does not come with glass there's not an option for glass that I know of at least at the time is the shooting of the video uh the bezel is a really nice sort of metal frame but the rest of the monitor case is like this kind of textured vacuum formed plastic uh the monitor does feel a lot sturdier and I think that that is what contributes to the reduction in Edge shadowing so this display does have a little bit of edge shadowing on the edges but overall it's improved over the a399 The Edge shadowing is not as pronounced as it was on the a399 but if you're really nitpicky and you're expecting a perfect monitor don't expect a perfect monitor there is a little bit of edge shadowing but for me the edge shadowing was not really a big deal just be aware of it the mounting situation here with this monitor is a 200 mm x 200 mm Visa mount standard issue basically the same as the a399 they did extend the pegs past the end of the case in this case so that works out a little better than the a399 in my opinion also included in the box is a fixed glass base this is basically a glass plate with some holes drilled in it and some aluminum standoffs with some little rubber things to make sure that you don't break the glass it also includes an allen wrench so you can tighten down the bolts although you'll want to just snug them you won't actually want to tighten them because that could weaken the glass and be very bad cuz then you'd have broken glass in your hands and that sort of thing me personally I like using these displays with monitor arms or other Mounting Solutions works great you know you can do a wall mount arm mount whatever you want to do just be sure that you can get an arm that can carry the weight of these things all in all this monitor like the a399 is not perfect but it is an incremental upgrade over the a399 as a result the a399 is also on fire sale so if you'd like to pick up an a399 that pwm backlight or flickering backlight doesn't really bother you too much in General on monitors then uh you should pick up an a399 cuz they're on fire cell but this monitor with the improved brightness and the improved backlight and the promise of free Sync It's a pretty good deal it's not really that much more expensive than the a399 uh and it is dramatically way cheaper than the other higher-end monitors and the other good thing about these monitors is that it's going to drive the prices of other higher-end 4K monitors down I would like to see a you know a topshelf manufacturer actually sanction this kind of thing actually put together a dream monitor you know 4K the overclockability or higher frame rates at you know lower resolutions there exists TVs that will do 120 HZ at 1080p but no display port input so the panels are out there I know they exist the Wasabi mango has an IPS panel an LG IPS panel for example it can do 120 HZ but the controller can't keep up with it so we need those controllers it's going to be a really interesting year for 4K monitors and 40 in is in we've also got some threads you should check out on the Forum at Tech syndicate.com this monitor's already got a really long thread so people went ahead and bit the bullet and bought it ahead of this review because the a399 was was so good so you should go check that out there's also a huge thread with kazillion posts about the a399 in the forums at Tech syndicate.com so if you bought one of these share your experience good or bad we want to hear from you all in all I've been really impressed by uh the experiences that people have posted on the tech Syndicate forums with these monitors and they're like you know I was a little skeptical but 500 bucks I figured I could use it as a TV oh my God it was transformative it's amazing you're welcome so yeah I I didn't think this would be anything either but using it and actually like programming and stuff like that with it oh my goodness it is transformative it is crazy I'm never going back from 4K at 40 in so if you got one of these I want to hear from you if you're thinking about buying head on over to the Forum I'll see you there and window signing out\n"