AOC U3 U27U3XD 27″ 288Hz Monitor

27 inch · 3840 x 2160 · 288 Hz · IPS

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Screen size 27 inch
Resolution 3840 x 2160
Refresh rate 288 Hz
Panel IPS
Response time 4 ms

AOC U3 U27U3XD 27″ 288Hz Monitor is a 27-inch monitor with 3840 x 2160 resolution, a 288 Hz refresh rate and IPS panel. The high refresh rate makes fast games look smoother. It came out in 2025.

Released: 2025-10-26

Specifications

Key specs

Screen size: 27 inch
Resolution: 3840 x 2160
Refresh rate: 288 Hz
Panel: IPS
Response time: 4 ms
Released: 2025-10-26
Part number: U27U3XD

Display

Display diagonal: 68.6 cm (27")
Display resolution: 3840 x 2160 pixels
HD type: 4K Ultra HD
Native aspect ratio: 16:9
Display technology: LED
Panel type: IPS
LED backlight: Yes
Backlight type: Direct LED
Display brightness (typical): 450 cd/m²
Response time: 4 ms
Response time measurement type: GTG (Gray to Gray)
Response time (MPRT): 0.3 ms
Screen shape: Flat
Contrast ratio (typical): 2000:1
Dynamic contrast ratio marketing name: Mega DCR
Maximum refresh rate: 288 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 1.07 billion colours
Pixel pitch: 0.1554 x 0.1554 mm
Viewable size, horizontal: 59.7 cm
Viewable size, vertical: 33.6 cm
High Dynamic Range (HDR) technology: DisplayHDR 400
Colour gamut standard: DCI-P3, sRGB
sRGB coverage (typical): 100%
DCI-P3 coverage: 98%

Performance

NVIDIA G-SYNC: Yes
VESA Adaptive Sync support: Yes
Flicker-free technology: Yes

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Design

Market positioning: Consumer
Product colour: Black, Grey
Frameless design: Yes

Ports & interfaces

Built-in USB hub: Yes
USB hub version: 3.2 Gen 2 (3.1 Gen 2)
USB upstream port type: USB Type-B, USB Type-C
Number of upstream ports: 2
Number of downstream ports: 4
Number of USB Type-B upstream ports quantity: 1
Number of USB Type-C upstream ports quantity: 1
USB Type-A downstream ports quantity: 4
USB Type-C DisplayPort Alternate Mode: Yes
USB Power Delivery (USB PD): Yes
USB Power Delivery up to: 90 W
HDMI: Yes
HDMI ports quantity: 2
HDMI version: 2.1
DisplayPorts quantity: 1
DisplayPort version: 1.4
Headphone out: Yes
Headphone outputs: 1
Headphone connectivity: 3.5 mm
Built-in KVM switch: Yes
HDCP: Yes
HDCP version: 2.3

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Cable management: Yes
Height adjustment: Yes
Adjustable height (max): 15 cm
Pivot: Yes
Pivot angle: -90 - 90°
Swivelling: Yes
Swivel angle range: -30 - 30°
Tilt adjustment: Yes
Tilt angle range: -5 - 23°
Picture-in-Picture: Yes

Power

Energy efficiency class (SDR): Not available
Energy efficiency class (HDR): Not available
Power consumption (typical): 39 W
AC input voltage: 100 - 240 V
AC input frequency: 50/60 Hz
Input current: 3 A
Power supply type: Internal

Weight & dimensions

Width (with stand): 613.9 mm
Depth (with stand): 238.4 mm
Height (with stand): 613.9 mm
Weight (with stand): 6.1 kg
Width (without stand): 613.9 mm
Depth (without stand): 55.6 mm
Height (without stand): 613.9 mm
Weight (without stand): 4.35 kg

Other features

Compliance certificates: CE
Certification: RoHs compliant,CB,FCC

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About this product

27" Dual Refresh Rate Graphic Pro Monitor Experience pro-grade visuals on a 27" IPS panel featuring a 2000:1 contrast ratio and VESA HDR400 certification. Choose stunning 4K at 144Hz for immersive detail or FHD at 288Hz for ultra-competitive speed, both enhanced by Adaptive Sync with G-Sync compatibility. Streamline your setup with KVM and USB-C (90W PD), plus PBP/PIP multitasking for seamless multi-device workflows. Achieve perfect visuals through 93–105% luminance uniformity and precise 6-axis Hue/Saturation calibration. Enjoy blur-free action with 0.5ms MPRT, while Flicker-Free and Low Blue Light technologies keep your eyes comfortable. Effortlessly adjust height with the ergonomic stand, fine-tune settings via i-Menu, and support sustainability with our eco-friendly Green Packaging.

U27U3XD vs similar monitors

	AOC U3 U27U3XD 27″ 288Hz Monitor	AOC U27P4C 27″ 60Hz Monitor	Lenovo ThinkVision T27UD-40 Monitor	Lenovo ThinkVision P27u-20 Monitor
Screen size	27 inch	27 inch	27 inch	27 inch
Resolution	3840 x 2160	3840 x 2160	3840 x 2160	3840 x 2160
Refresh rate	288 Hz	60 Hz	60 Hz	60 Hz
Panel	IPS	IPS	IPS	IPS
Response time	4 ms	4 ms	4 ms	4 ms
Released	2025	2026	2026	2026