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020 3337 8950AOC B Series U27B3A 27" IPS 4K Ultra HD 4ms Built in Speakers Gaming Monitor
Get it on Thu, 25th Jun! Order within 2 hrs 47 mins
Get standard delivery within 3-4 working days
Book your delivery slot from only £6.95
- 27" 4K Ultra HD IPS Display, 3840 x 2160 Max. Resolution
- 60 Hz Refresh Rate , 4 ms Response Time
- 2x 2W Built in Speakers
- 2x HDMI | DisplayPort
- HDR10
- Black
- U27B3A
- 3 Years Manufacturer Warranty
Product Overview
AOC B Series U27B3A Perfect for Expert Gamers
Unleash True 4K Clarity
Experience unmatched productivity and vibrant visuals with the AOC U27B3A. This AOC U27B3A 27" 4K UHD Monitor delivers stunning detail, smooth performance, and a comfortable, frameless design for immersive usage.
4K UHD Display
Adaptive Sync
HDR10 Support
Low Blue Light
Productivity and Precision Perfected
The AOC U27B3A, a 27" 3840×2160 4K monitor, redefines clarity with its 4K UHD IPS display, delivering vivid colours and intricate details. This AOC 4K IPS monitor 27 inch supports HDR10 and Adaptive Sync for enhanced visuals, whether you're multitasking or enjoying entertainment. Its sleek, three-sided frameless design suits any modern workspace or multi-monitor setup, while Low Blue Light technology ensures long-term viewing comfort. With built-in speakers, this model functions perfectly as a 4K monitor with built-in speakers, making it an ideal UHD 27" monitor for work and media, as well as a reliable large 4K monitor for office and creative tasks.
Great for
Creative Professionals
The 4K resolution and IPS panel make AOC U27B3A 27" 4K UHD Monitor ideal for photo editing, design, and content creation, providing precise colours and sharp detail.
Gaming Enthusiasts
HDR10 and Adaptive Sync provide fluid, lifelike visuals for casual gaming sessions without stuttering or tearing.
Home Office
Multiple connectivity options and a frameless design ensure seamless multitasking and a clean, stylish workspace.
Entertainment Lovers
Built-in speakers and vibrant 4K visuals create a cinematic experience for movies, streaming, and more.
Display Quality
Breathtaking 4K UHD Resolution
Experience ultra-crisp visuals on this 4K desktop monitor UK 27" with a 3840×2160 resolution designed for exceptional clarity. Its HDR10 support enhances contrast and brightness, making it an excellent 27" monitor for video editing 4K and colour-intensive creative work.
Performance
Smooth and Responsive Viewing
Enjoy fluid visuals with Adaptive Sync, eliminating tearing and juddering for a seamless experience. The 4 ms IPS 27" display and 60Hz refresh rate ensure smooth performance for productivity, streaming, and casual gaming
Connectivity & Compatibility
Versatile Connections Made Easy
Equipped with two HDMI ports, a DisplayPort, and headphone out, the AOC U27B3A 27" 4K UHD Monitor ensures effortless compatibility with various devices; ideal for both work and entertainment setups.
Design & Ergonomics
Modern Frameless Design
The sleek, three-sided frameless design maximises screen space for immersive use and seamless multi-monitor configurations. Low Blue Light and flicker-free technology reduce eye strain during long sessions, making it perfect for extended professional or creative workflows.
More Features You'll Love
Built-in Speakers
The dual 2W speakers offer quality audio for movies, games, and video calls, eliminating the need for external speakers.
Low Blue Light Technology
Protect your eyes during long hours with AOCs Low Blue Light feature, reducing harmful wavelengths without compromising colour quality.
HDR10 Compatibility
HDR10 support provides richer colours and deeper contrasts, creating an immersive experience for gaming and entertainment.
Specifications
Display
| Screen Size | 27" |
| Touchscreen | No |
| Display Type | 4K UHD (3840 x 2160) |
| Panel Type | IPS |
| Aspect Ratio | 16:9 |
| Brightness | 350 cd/m² |
| Refresh Rate | 60 Hz |
| Response Time | 4 ms |
| Screen Shape | Flat |
| HDR Standards | HDR10 |
| Anti-glare Screen | Yes |
| Display Number of Colours | 1.07 Billion Colours |
Ports & Interfaces
| Connectivity | 2x HDMI | DisplayPort |
| VGA Ports | No |
| DVI Ports | No |
| HDMI Ports | 2x 2.0 |
| Display Ports | 1 |
| USB-C Ports | No |
| Built-in USB Hub | No |
| RJ-45 | No |
| Headphone Out | Yes |
Features
| Built-in Speakers | Yes |
| Monitor Speaker Info | 2x 2W |
| Built-in Camera | No |
| Adaptive Sync | Yes |
| AMD FreeSync | No |
| Low Blue Light Technology | Yes |
| Flicker-free Technology | Yes |
| Aspect Ratio | 16:9 |
| Height Adjustable | No |
| Pivot/Swivel | No |
Other Specifications
| Most Suitable For | Everyday Use |
| VESA Mounting | Yes |
General
| Condition | New |
| Colour | Black |
| Weight | 5.2 kg |
| Dimensions (H x W x D) | (WxDxH) 614 mm x 229.8 mm x 460 mm |
| Box Contents | U27B3A Monitor | HDMI Cable | Power Cable |
| Warranty | 3 Years |
| Brand | AOC |
| EAN | 4038986181495 |
| MPN | U27B3A |
From Manufacturer
Reviews
AOC B Series verified by feefo
Average rating based on 4 reviews

Trusted Customer
Published on
24-Jan-2026
I have no issues with your service. I got the package quickly and the product works

Rod
GBR
Published on
10-Nov-2025
It's a UHD monitor, it's cheap and it's not fancy, it works, don't expect anything from the speakers, it would be better without them. Got it to use with an old 2020 Mac mini. They work well together. It functions and is good value for money.

Trusted Customer
Camborne
Published on
12-Apr-2025
Great value.
4k is fantastic.
probably slow for gaming, but used for two weeks by my son to game and when he gave me the 4k back was so disappointed by the image quality he purchased a AOC 2k monitor that has a faster response time!
Happy now have to of these and I'm thinking about getting a third one.

Richard Molton
Nantwich
Published on
27-Mar-2025
£179.99
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