AOC - 08 series C4008VU8 40" LED Curved 4K UHD Monitor - White/Silver

Enhance your viewing experience with this 40-inch AOC monitor. It has a 3840 x 2160 resolution and a 60Hz refresh rate to produce realistic HD images, and its flicker-free technology adjusts brightness without causing fatigue to your eyes. This AOC monitor is less than 10mm thick, so it integrates seamlessly into the wall.

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What's Included

  • AOC 08 series C4008VU8
  • Power cable
  • Power adapter
  • HDMI cable
  • DisplayPort cable
  • Audio cable
  • Stand
  • Software

Ratings & Reviews

Overall Customer Rating:
86% of customers would recommend this product to a friend (35 out of 41)


4K Ultra HD 3840 x 2160 resolution

Outstanding detail that's ideal for watching high-resolution videos and playing games with settings maxed out.

5 ms response time

Delivers solid performance for precise gaming and video work.

60 Hz refresh rate

Provides smooth video and good refresh rates for everyday use.

40" LED monitor

Efficient screen type uses LEDs to provide precise backlighting to pixels.

Curved screen

Provides extra immersion for gaming or video watching.

2 HDMI, 2 DisplayPort and VGA inputs

Let you connect both digital and analog devices.

178° horizontal and vertical viewing angles

Allow you to view the screen from a wide range of angles.

5-watt built-in speakers

For enhanced audio.

20,000,000:1 dynamic contrast ratio

Ensures images are crisp and clear with deep blacks and bright highlights.

300 cd/m² brightness

Produces bright images that can clearly be seen even in well-lit rooms.

Customer rating

would recommend to a friend



  • Rating: 5 out of 5 stars

    Nice for software development, at least

    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    It's great for my work computer. I develop software and need a lot of windows open. This monitor is great for that. Most importantly, the "4K" pixels span a screen large enough so that you don't need to scale up the fonts via your operating system. (That is a waste of pixels! If you buy a monitor smaller than 40", don't waste your money on 4k because everything will look too tiny.) This 40" display makes text look a bit smaller than my old 24" HD display, but it's OK. I wouldn't go any smaller with 4K resolution. I do see the red blurring some people mentioned, when moving a window quickly, but strangely I haven't noticed the effect when watching a video, so it hasn't been a problem at all. (Note that the red blur is a side-effect of the LCD tech used in this panel. It comes with both pros and cons. It's not simply a question of good or bad. It depends on your priorities.) Other reviews complained about the height--about 4" above the desk--but I think it's fine. When I sit in my chair, my eyes are slightly above the center of the screen, so I think it's fine. If anything, I notice a slight darkening on the left or right if my head isn't perfectly centered, but it's pretty mild. The PIP is cool, but the computer filling the main part of the screen doesn't know a corner is being stolen, so windows and cursors can disappear behind the PIP display. The side-by-side view is probably more useful if you need to hook multiple computers up. Either way, it's pretty cool that these features exist. Regarding the branding, the AOC logo is applied with stickers. This monitor was likely designed/built by a third party, probably Philips, or who knows these days? The Philips BDM4037UW appears to be identical (at least the hardware), so you can probably buy whichever is cheaper at the time. The on-screen setup is pretty good, I think. I've never had a monitor with the rear joystick controller before... It's a welcome advance for TVs. A handy shortcut is to press "up" to change vid sources, without having to enter the main menu system. I use that often. One minor quirk... The audio input has to be from the main video input. I connected my main computer to some nicer external speakers, and so I figured I could use this monitor's speakers as a slight upgrade to my secondary computer's internal speakers, but that didn't seem possible since the sound source options get grayed out when you choose an HDMI or displayport video input (since the audio is usually bundled in those cables). There's no technical reason for the limitation; the menu software is "too smart" to let you attach a random audio source.

    I would recommend this to a friend

  • Rating: 4 out of 5 stars

    2 PC's with dual display all on one monitor!

    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    I read the reviews and did notice some that said the red blur trails as objects were moving across the screen. I don't game, but do play some online games occasionally and will confirm that there is a red blur trail on things moving. So from a Gaming standpoint, this may be an issue for some people. However, I use this monitor for both my work and home PC's, which gives me 4 separate sections to use as dual monitors (you will need to have 2 cables per each PC to get the dual monitor capabilities). This is great in that I can be working on items in the bottom two monitor sections and have a movie or an internet browser open in the top two monitors going at the same time. As a work/home PC solution, this is a great monitor especially using the 4 monitor functionality. I wouldn't suggest using the 2 monitor functionality as it doesn't use up the entire screen and you will have some black dead space at all times. But to get around this, simply use the monitor as a single monitor and then utilize the Windows functionality to snap programs to the sides of the monitor to have them act like a dual or quadruple monitor. I can't say anything about the speakers since I am not using them. There is no headphone jack on the monitor if you want to use them (which I generally do) so I have retained my existing speakers and wired headphones. The $800 standard price was a bit much for me to go to this monitor, but I lucked out and caught a Deal of the Day promotion and got it for $450, which was a steal for what I am getting and can accomplish with all this video real estate. For someone who works from home (programmer) and needed additional monitors to be more efficient, this monitor is a great choice!! Coding, testing, troubleshooting, and research all visible at the same time is a great thing! If I was a gamer, I would probably be a little disappointed with this (which is why I gave it the 4 stars).

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Avery good 4K monitor


    Always been a brand name monitor guy until I saw this 40” 4K curved and decided give this monitor a try since it was on sale. Reason for the four starts is because I ordered it online and picked it at the store, however I noticed someone has already tampered with the factory seal. I decided to take the chance since it was out of the stock and I did purchase Geek squad 4 year warranty. The monitor seemed to be a brand new and worked right out of the box. Still don’t understand why the seal was broken. This monitor does not support Free Sync or the GSync but the games looked/performed flawless regardless! I did not notice any screen tearing, ghosting and lag! Playing games on a 40” 4K curved monitor is amazing experience. Picture quality is perfect but so so on some windows 10 applications. This monitor looks high-end and beautiful on my desk. MY SYSTEM: -Wins 10 Pro 64bit -i7 7700K -16 Gig PC3000 -500 Gig SSD M.2 + 2T HD -MSI GTX 1080 Ti PRO: -Build quality!!! -Accessories, include all types of possible connections cables. - Number of inputs! -Perfect picture quality (gaming and 4K pictures) -Curved 4K -Did not notice input lag, ghosting, and screen tearing. -Wall mountable CON: -No swivel -No height adjustment (it wasn’t needed for me)

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Remarkable Value, Hard to fault

    • My Best Buy® Elite MemberElite Member

    I struggled between purchasing an Ultrawide or a Large 4k monitor as I recreate my office. I was lucky to find a 34" Dell Ultrawide on Craigslist at a good deal but after bringing it home, felt myself wanting more. I am not a fan of the 21:9 as much as the traditional 16:9 aspect ratio. An ultrawide offers great productivity potential for those wanting a smaller footprint but for me, this was not the case. I had been eyeing this AOC monitor since the holidays and while the price fluctuated often below its normal retail, I was skeptical of the off-brand name and the few reviews I saw online. When this went on sale for $500 though, after realizing the 34" ultrawide wasnt all I had expected, I gave into the urge to try this monitor and im very glad I did. My purpose for this monitor is for general productivity and leisure so It wasnt imperative this was the best screen on the market or even top 3 in the segment ..but I still am a discerning buyer that wants to like what I see when I stare into a 40 inch monitor and I cant say this is anything but a joy to view. The built in speakers are just ok and the stand, while nice looking, isnt as ergonomic as the Dell Ultrawides but that may be due to the increased size. A minor gripe for me was that no setup or software was included so to enable the myriad different split screen setups I had to visit the AOC website. This monitor has not exactly followed the program app to rearrange e very window but that has been a small and intermittent issue. All in all, grab it if you were on the fence especially at $500.

    I would recommend this to a friend

  • Rating: 4 out of 5 stars

    Very nice 4K monitor


    I am overall happy with the C4008VU8. The picture is sharp, as I would expect. The display has good color and brightness, though I haven't put a color tester on it. The color does fade off-angle, but that's not important for my use. I don't game, so can't comment on how it performs for high speed motion. The adjustment controls I found easy enough to use. The little joystick works well. I like the presence of the USB hub built in. The built-in stand looks spindly but is up to the task. I find this is a good balance of display size and resolution. I run Ubuntu Linux and I didn't need to fiddle with rendering to make things readable. A 28" 4K monitor made things too small and I never really got everything to resize appropriately. Now the downsides. The only real downside for me is the stand. The stand only supports tilt, not vertical adjustment. The stand places the bottom of the monitor 4 inches above the desk. I'd be happier if I could drop it a couple inches. Unfortunately, the shaft of the stand is permanently attached to the monitor. The monitor does have VESA screw holes, but that doesn't solve the problem. Removing the base of the stand only nets 1/2 inch of clearance. I'd much prefer to bring it down 3 inches or so. If I was willing to void the warranty, I could force off the plastic cover over the shaft attachment (likely breaking it) and then unscrew the shaft. Lastly, my first monitor developed a vertical blue stripe after a month. Fortunately Best Buy had extended the holiday exchange period so I will be getting a replacement. Thank you, Best Buy!

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Better than 4K tv for PC laptop or Mac!

    • My Best Buy® Elite MemberElite Member

    This is the perfect balance of price, size and resolution for a large monitor. The key is the fast response time. If you just use a 4k tv for computing, you will not be happy because the mouse, video and audio will all be out of sync and too slow. This is made to be a monitor. The image is near perfect with only minor color drop-off from extreme viewing angles. Very well built, sturdy frame which does tilt. No height adjustment, but for me, it wasn't needed. The look of the monitor is very nice and clean and the curve is slight and the perfect amount when viewing from ~36". I'm using this to replace a dual screen setup and it's working awesome! It's not perfect and the controls are a little strange, but for the price and what you get (it came with all possible connection cables), I'd give it a solid A. If you can get it for $599 or less like I did, do not hesitate!

    I would recommend this to a friend

  • Rating: 2 out of 5 stars

    *Brutal* reflection off this monitor


    It's a great monitor. Performance is good, colors are good, resolution is great, ports are okay, sound is a little inadequate. Glare makes it unusable. I don't use this monitor at all. Sits on the desk powered down. There is just so much reflection of items and light sources that it is literally exhausting to try to use this. I've rearranged my office/studio a few times and still the reflection and glare is so bad I just can't use it. Other than a pitch black room this monitor is a waste of money. The image I attached shows the reflections - they are not on-screen images.

    No, I would not recommend this to a friend

  • Rating: 3 out of 5 stars

    So thin its fragile


    The monitor itself performs as expected. I was expecting a 1800r curve. I believe this is the 3000r model which is barely curved at all. The case feels stout, but considering it has lines fresh out of the box I am going to assume not stout enough. For the money It the best deal out there for a monitor of this size that is curved. I received it with a 2 lines in the left side. The box had a minor ding in it. Not enough for me to believe the item would be defective but however it was. I am not sure if they will allow return or not. I would prefer to exchange, It was ship to store,a nd the best Buy i picked it up at was less than courteous, so I am concerned as to how this will play out. I would recommend to a friend with caution due to how thin it is. Thinner is not always better

    I would recommend this to a friend

Product images, including color, may differ from actual product appearance.