AOC U27B3AF 27" 4K UHD IPS Monitor, HDR10, Speakers, Height Adjust
The AOC U27B3AF is a 27-inch 4K UHD IPS monitor (3840 x 2160) built for office productivity and home working. HDR10 support, built-in 2 x 2W speakers and a 110mm height-adjustable stand make it a comfortable all-in-one screen for detailed spreadsheets, documents and photo work.
Key features
- 4K UHD IPS panel: 3840 x 2160 resolution with 178°/178° viewing angles shows more on screen at once with sharp, consistent colour.
- HDR10 and wide colour: 1.07 billion colours (8-bit + FRC) and 99.6% DCI-P3 coverage (CIE 1976) for vivid, true-to-life images.
- Height-adjustable stand: 110mm of height adjustment and -5° to 20° tilt to suit each user's seating position.
- Built-in speakers and flexible inputs: 2 x 2W speakers, 2x HDMI 2.0, 1x DisplayPort 1.4 and a 3.5mm headphone output.
- Eye comfort features: flicker-free backlight and Low Blue Light mode for long working days, plus Adaptive Sync for smoother motion.
Specifications
| Model | AOC U27B3AF |
| Screen size | 27" (68.6 cm), flat |
| Panel | IPS, WLED backlight, anti-glare, 3H hardness |
| Resolution | 3840 x 2160 (UHD), 16:9 |
| Refresh rate / response time | 60Hz; 4 ms GtG |
| Brightness | 350 cd/m² |
| Contrast | 1000:1 static; 20M:1 dynamic |
| Viewing angles | 178/178 |
| Colours | 1.073 billion (8-bit + FRC) |
| Colour gamut | sRGB 125.1%, DCI-P3 99.6%, Adobe RGB 107.2% (CIE 1976) |
| HDR / sync | HDR10; Adaptive Sync |
| Inputs | 2x HDMI 2.0, 1x DisplayPort 1.4 |
| Audio | 2 x 2W speakers; 3.5mm headphone out |
| Ergonomics | Height adjust 110mm; tilt -5° to 20° |
| VESA mount | 100 x 100 |
| Eye comfort | Flicker-free; Low Blue Light |
| Power | Internal PSU, 100–240V 50/60Hz; 27W typical, 52W max., 0.5W standby |
| Dimensions (W x H x D) | With stand: 614.0 x (407.9–517.9) x 229.8 mm; without stand: 614.0 x 363.8 x 45.7 mm |
| Weight | 5.2 kg net; 3.64 kg without stand |
| Colour | Black, textured finish |
| In the box | HDMI cable (1.5m), power cable |
| Warranty | 3 years (AOC) |
Who it's for
Suited to: office workers, home-office users and small businesses who want a sharp 4K screen with speakers and an adjustable stand in one unit. For desk-arm mounting it supports VESA 100 x 100; browse our Brateck monitor mount range, or see the full AOC monitor range for other sizes.
Not suited to: fast-paced gamers who need refresh rates above 60Hz, or anyone needing USB-C connectivity, which this model doesn't list. For a similar 27-inch 4K office screen, compare the AOC U27B35.
FAQs
Does the AOC U27B3AF have built-in speakers?
Yes. It has 2 x 2W built-in speakers, plus a 3.5mm headphone output.
What inputs does the U27B3AF have?
It has two HDMI 2.0 ports and one DisplayPort 1.4 input; an HDMI cable (1.5m) is included in the box.
Is the stand height adjustable?
Yes. The stand offers 110mm of height adjustment and -5° to 20° tilt, and the monitor also supports VESA 100 x 100 mounting.
What warranty does AOC provide?
AOC lists a 3-year warranty period for the U27B3AF.
