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✨ Elevate your workspace with stunning 4K clarity and sleek design!
The AOC U27B3A is a 27-inch UHD 4K monitor featuring a 3840x2160 resolution, 60Hz refresh rate, and a rapid 4ms response time. Its IPS panel ensures vibrant colors and wide viewing angles, complemented by HDR10 support for enhanced contrast. Designed for professionals, it includes eye-care technologies like Low Blue Light and Flicker-Free modes, built-in speakers, and a modern three-side frameless bezel for a seamless multi-monitor experience. Connectivity options include HDMI 2.0 and DisplayPort 1.4, making it a versatile and stylish addition to any productivity setup.











| ASIN | B0D7CPTFZ4 |
| Adaptive Sync | FreeSync |
| Aspect Ratio | 16:9 |
| Aspect ratio | 16:9 |
| Best Sellers Rank | 1,140 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 18 in Monitors |
| Box Contents | monitor, power cable, warranty card, set-up guide |
| Brand | AOC |
| Brand Name | AOC |
| Colour | 60Hz |
| Contrast Ratio | 1.000:1 |
| Country of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 177 Reviews |
| Display Technology | LCD |
| Display Type | LCD |
| Global Trade Identification Number | 04038986181495 |
| Hardware Connectivity | HDMI |
| Has Color Screen | Yes |
| Image Brightness | 350 cd/m² |
| Image contrast ratio | 1.000:1 |
| Item Dimensions D x W x H | 23D x 61.4W x 46H centimetres |
| Item Weight | 3.64 Kilograms |
| Manufacturer | AOC International |
| Maximum Display Resolution | 3840 x 2160 |
| Model Name | U27B3A |
| Model Number | U27B3A |
| Mounting Type | Wall Mount |
| Native Resolution | 3840x2160 |
| Network Connectivity Technology | HDMI, DisplayPort |
| Picture Quality Enhancement Technology | HDR10, G-Sync |
| Pixel Pitch | 7.24 |
| Power Consumption Size | 240 Watts |
| Product Features | Adaptive Sync, Anti Glare Screen, Blue Light Filter, Built-In Speakers |
| Product Warranty | 3 Year Manufcturer warranty |
| Refresh Rate | 60 Hz |
| Resolution | 4K UHD 2160p |
| Response Time | 4 Milliseconds |
| Screen Finish Type | Matte |
| Screen Size | 27 Inches |
| Screen size | 27 Inches |
| Screen surface description | Matte |
| Series Number | 2 |
| Shape | Flat |
| Specific Uses For Product | Business, Desktop, Gaming |
| Total HDMI Port | 2 |
| Total USB 2.0 Ports | 4 |
| Total Video Out Ports | 2 |
| Unit Count | 1.0 count |
| Viewing Angle | 178 Degrees |
| Warranty Type | 3 Years Manufacturer Warranty |
P**O
Good, but fiddly set up controls
It’s a good screen, clear and bright at least for what I need it for, quick to start up works well with my older MacBook Pro, the only downside for me is that there is a lack of real control of the image quality and the buttons to alter any settings is a bit of a nause, find myself clicking backwards and forwards so many times to get what I wanted. Now it set up though I really like it, sharp detail, good colour and brightness. I would recommend as a lower price monitor, I have had some rubbish in my time as I can’t afford a high tech one, this monitor works ok for me and am really happy with it. Used for about 6 months now and would recommend.
K**N
Awesome....Perfect for Macs.
Wow. Fantastic monitor. Really crisp, vibrant and accurate colours. Looks much more natural than than the KTC I tried. Looks really nice and the bezels are really thin, so screen looks so immersive. Bought it to go with my Mac mini M1 and it's perfect. I usually run it at 1080p scaling, sometimes on 1440 p scaling if I want more space and no issues if using M series macs. Got it nearly new for £130 so very happy !
D**N
Decent cheap monitor but awful audio
Decent cheap 4K monitor. Be aware though that the built in speakers are utterly dreadful. Words cannot describe how dire the audio is. The UI controls aren’t great either. It’s a decent enough screen at a cheap price.
H**E
Great monitor for the price
This is a really good monitor for the price. If you just want a decent resolution, clear picture for your day to day computer use, this is an excellent choice. Looks great and is of good size, brightness and suchlike are all great with simple to use OSD to adjust settings etc. no complaints.
P**R
Good monitor for the price
Solid 4k monitor, very good for the price. Clear image on it, works well
F**E
Astoundingly Good
I use an Asus ProArt monitor for my PC and Mac but wanted something cheaper for my office. I never expected to find a 4k monitor for this price (150 at time of ordering), but user reviews gave me the confidence to give it a try. The colours are incredible. I tested it with my Steam Deck and was very impressed. Black levels aren’t great but that’s a given for this kind of screen. Being a budget model there are no USB ports on the monitor itself, and you can’t swivel or rotate the screen, but there’s a little up and down angle adjustment. It took me a moment to realise the power button is on the bottom edge, but then it was easy to use. It’s very light and the stand is very easy to connect - no screws. There could be a little more space under the ports - the included HDMI cable ends up being a bit tricky to insert - but that’s really it for criticisms. The speakers aren’t great but are better than I’d expected.
M**S
Picture good, sound terrible.
Image good. Sound is pointless and unusable.
A**S
Fantastic monitor at an unbelievable price
A truly amazing monitor not just for the price but in general. Using it with my Mac mini M4 via thunderbolt/ display port the colour is vibrant and true to life. The quality is amazing and it is a good looking monitor. Only slight let down is if you use it for sound as well but it’s a monitor, not a tv.
J**N
PC Gaming Monitor
Alles Top. Guter Monitor mit Klasse Bild. Ton läßt zu wünschen übrig (was aver klar ist bei eingebauten Mini Lautsprechern) Ansonst ein sehr zu empfehlender Monitor
C**R
Fantastic screen
its a fantastic screen, easy to work with its settings, just need to figure out which button does what but once thats done its easy to set up, i love how clear and vibrant the image is, its the best monitor i have ever had, paired with a Gigabyte nvidia 2060 graphics card also from amazon with 4k and hdr 10 and all the other stuff like anti flickering
M**I
Bon écran
Bonne qualité
S**O
Un buen monitor a un precio asequible
Un monitor estupendo, barato y fácil de usar. La imagen se ve clara y con colores vivos.
A**O
Ottimo. Consigliato
Ottimo monitor. Semplice, non ingombrante, colori chiari, nitidi, giusti. Non saturi. Neri profondi. Utilizzato come monitor in ufficio. Senza troppe esigenze, molto soddisfatto. Mai usato se non per ufficio, niente videogiochi. Video in 4k ottimi. Relazione qualità-prezzo giustificata. Contento dell'acquisto. Consigliato!
Trustpilot
3 weeks ago
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