AOC B3 U27B3A computer monitor 68.6 cm (27") 3840 x 2160 pixels 4K Ultra HD LCD Black

AOC

AOC B3 U27B3A computer monitor 68.6 cm (27") 3840 x 2160 pixels 4K Ultra HD LCD Black

Name: AOC B3 U27B3A computer monitor 68.6 cm (27") 3840 x 2160 pixels 4K Ultra HD LCD Black
Brand: AOC

27-inch 4K IPS panel with 350 cd/m² antiglare screen and speakers

Manufacturer reference U27B3A

57 /100 Its best score: the brightest screen, rated "good" on its category’s scale.

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What the AOC B3 U27B3A computer monitor 68.6 cm (27") 3840 x 2160 pixels 4K Ultra HD LCD Black is worth

The AOC U27B3A is a 68.6 cm (27") PC monitor with a 16:9 flat IPS panel at 3840 x 2160 pixels (4K Ultra HD) resolution. It includes built-in speakers, a headphone output, two HDMI 2.0 ports and one DisplayPort 1.4, plus VESA 100 x 100 mm mounting and a Kensington lock slot.

This monitor scores 53/100 overall. Its screen size is rated comfortable (70/100) and its responsiveness good (70/100), with a 4 ms response time close to the market median. Its 350 cd/m² brightness exceeds the market median, earning a 77/100 score. However, its 60 Hz refresh rate lags behind the 100 Hz market median (30/100), as does its 1.073 billion displayed colors against a 16.7 billion median (20/100).

With an F energy efficiency class and a typical power draw of 27 W, this monitor suits office or media use where 4K resolution and brightness matter more than display fluidity.

What the spec sheet says

68.6 cm (27") Black
11 cm Built-in speaker(s)
HDMI HDMI version: 2.0 DisplayPorts quantity: 1 DisplayPort version: 1.4
Screen shape: Flat
Maximum refresh rate: 60 Hz Response time: 4 ms Response time measurement type: GTG (Gray to Gray)
3840 x 2160 pixels 4K Ultra HD Panel type: IPS
Energy efficiency class (SDR): F CE
Warranty period: 3 year(s)

Its scores, criterion by criterion

Scores out of 100, calculated from the datasheet and compared with the market. The full method is public.

Brightness Good

350 cd/m² · category median: 300 cd/m²

Responsiveness Responsive

4 ms · category median: 5 ms

Screen size Comfortable

27 " · category median: 27 "

Smoothness Basic

60 Hz · category median: 120 Hz

Colours Basic

1.1 · category median: 16.7

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Documents

What the manufacturer publishes about this model. Each document opens in a new tab.

EU Energy Label PDF 1.1 MB EU Product Fiche PDF 94.2 KB Product Brochure PDF 212.5 KB User manual PDF 3.9 MB

Specifications

Display 35

Display diagonal 68.6 cm (27")

Display resolution 3840 x 2160 pixels

HD type 4K Ultra HD

Native aspect ratio 16:9

Display technology LCD

Panel type IPS

Touchscreen No

Response time 4 ms

Screen shape Flat

Contrast ratio (typical) 1000:1

Maximum refresh rate 60 Hz

Display number of colours 1.073 billion colours

LED backlight Yes

Backlight type W-LED

Display brightness (typical) 350 cd/m²

Response time measurement type GTG (Gray to Gray)

Anti-glare screen Yes

Contrast ratio (dynamic) 20000000:1

Viewing angle, horizontal 178°

Viewing angle, vertical 178°

Pixel density 163.18 ppi

Viewable size, horizontal 59.8 cm

Viewable size, vertical 33.6 cm

Digital horizontal frequency 30 - 140 kHz

Digital vertical frequency 40 - 60 Hz

Display diagonal (metric) 68.6 cm

High Dynamic Range (HDR) supported Yes

High Dynamic Range (HDR) technology High Dynamic Range 10 (HDR10)

Surface hardness 3H

Colour gamut standard Adobe RGB, DCI-P3, NTSC, sRGB

sRGB coverage (typical) 125%

NTSC coverage (typical) 109%

Adobe RGB coverage 107.2%

BT.2020 coverage 72.6%

DCI-P3 coverage 99.6%

Performance 3

VESA Adaptive Sync support Yes

Flicker-free technology Yes

Low Blue Light technology Yes

Multimedia 3

Built-in speaker(s) Yes

Number of speakers 2

RMS rated power 4 W

Design 5

Market positioning Home

Product colour Black

Frameless design Yes

Front bezel colour Black

Detachable stand Yes

Ports & interfaces 11

Built-in USB hub No

HDMI Yes

Headphone out Yes

HDMI ports quantity 2

HDMI version 2.0

DisplayPorts quantity 1

DisplayPort version 1.4

Headphone outputs 1

Headphone connectivity 3.5 mm

Built-in KVM switch No

AC (power) in Yes

Ergonomics 11

VESA mounting Yes

Cable lock slot Yes

Height adjustment No

Panel mounting interface 100 x 100 mm

Cable lock slot type Kensington

Adjustable height (max) 11 cm

Tilt adjustment Yes

Tilt angle range -5 - 20°

On Screen Display (OSD) Yes

On Screen Display (OSD) languages Simplified Chinese, Traditional Chinese, Czech, Dutch, English, Finnish, French, German, Italian, Japanese, Korean, Croatian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian

Number of OSD languages 19

Power 13

Energy efficiency class (SDR) F

Energy efficiency class (HDR) G

Energy consumption (SDR) per 1000 hours 25 kWh

Energy consumption (HDR) per 1000 hours 40 kWh

Power consumption (typical) 27 W

Power consumption (standby) 0.5 W

Power consumption (max) 52 W

Power consumption (off) 0.3 W

AC input voltage 100 - 240 V

AC input frequency 50/60 Hz

Input current 1.5 A

Power supply type Internal

Energy efficiency scale A to G

Weight & dimensions 8

Width (with stand) 614 mm

Depth (with stand) 229.8 mm

Height (with stand) 460 mm

Weight (with stand) 4.04 kg

Width (without stand) 614 mm

Depth (without stand) 45.7 mm

Height (without stand) 363.8 mm

Weight (without stand) 3.59 kg

Packaging data 1

Package weight 6.62 kg

Packaging content 2

Cables included AC, HDMI

HDMI cable length 1.5 m

Sustainability 1

Doesn't contain Mercury, PVC/BFR

Other features 8

Introduction year 2024

Introduction month June

Local dimming Yes

Warranty period 3 year(s)

Bezel thickness type Frameless

Compliance certificates CE

Mean time between failures (MTBF) 50000 h

Certification WEEE,REACH compliant,RoHs compliant,CB,TUV-Bauart-Mark,ISO 9241-307,EAC,FCC

Technical details 1

Native refresh rate 60 Hz

Who this model suits

It’s for you if

Your first criterion is the brightness: it happens to be its best score.

You want a good score on the responsiveness, above its category average.

You prefer a model tracked across several merchants, to buy at the right time.

Skip it if

Its lowest score is on the colour count: skip it if that is decisive for you.

Frequently asked questions

Answers drawn from this model’s datasheet.

The screen runs at 60 Hz, a basic rate scored 30/100 against the market (median 100 Hz). The 4 ms response time stays responsive, but this monitor suits office work and creative tasks better than fast-paced gaming.

No, height adjustment is not available. Only tilt is possible, from -5 to 20 degrees. The stand is still detachable and compatible with a 100 x 100 mm VESA mount.

The IPS panel covers 125% sRGB, 107.2% Adobe RGB, 109% NTSC and 99.6% DCI-P3, with HDR10 support. The displayed color count (1.073 billion) still rates as basic against the market.