Screen size (inch) 27, Panel resolution 2560x1440, Max Refresh rate QHD@260Hz / HD@400Hz, Response time MPRT 0.3 ms, Panel type Fast VA, HDMI HDMI 2.0 x 2, DisplayPort DisplayPort 1.4 x 1, Sync technology (VRR) Adaptive Sync

Reasons To Buy

1500R Curved

Curved design wraps around you putting you at the center of the action and provides an immersive gaming experience.

QHD Resolution

With 2560 x 1440 resolution, Quad HD (QHD) offers superior picture quality and sharp imagery that reveals the finest details. The widescreen 16:9 aspect ratio provides plenty of space to spread out and work, plus allows you to enjoy games or movies in their original size.

260Hz Refresh Rate

260Hz completely unleashes top end GPUs, bringing unprecedented fluidity to the picture on your screen. With every detail brought sharply into focus and every movement shown with crystal clarity, feel your reactions become one with the action and elevate your game.

Dual Mode, HD@400Hz

Dual Refresh Rate adapts to the way you use your display, letting you switch between optimized refresh rates for every task. Choose an ultra-fast 400Hz mode for exceptionally smooth, responsive visuals with reduced motion blur and ultra-low latency, or switch to a lower refresh rate for crisp visuals and improved efficiency while working, watching videos, or creating content. Effortlessly balance performance and power for the best experience, whether you're gaming, creating, or staying productive.

Fast VA

Immerse yourself in a world of deeper blacks and striking contrast. Vivid, bright visuals bring your games to life like never before.

Vesa Certified DisplayHDRTM 400

Even the lowest level of High Dynamic Range (HDR) feature poses a significant upgrade to common monitors. The peak luminance of 400 cd/m2 enables your display to hone the picture quality with a manifold colour spectrum and more diverse contrast. The VESA-certificate ensures richness of detail and realistic portrayals of game and film worlds.

Adaptive sync

Adaptive Sync aligns your monitor’s vertical refresh rate with the frame rate delivered by your GPU, making your gameplay and casual gaming experience even more fluid by eliminating stuttering, tearing and judder. This feature is also useful when enjoying videos and other visual media, for a smoother entertainment.

ERGONOMIC DESIGN

Ergonomic stand to maintain comfort and prevent strain during long gaming sessions. It offers a wide range of motion and easy height, tilt, and swivel adjustments, accommodating the proper ergonomics and your personal preferences.

Low Input Lag

Unleash your reflexes by switching to the AOC Low Input Lag mode. Forget graphical frills: this mode rewires the monitor in favour of raw response time, giving the ultimate edge in hair trigger stand offs.

GMENU

AOC G-Menu is a free tool that you can install on your PC to have complete customization paired with maximum convenience.

Description

Immerse yourself in ultra-smooth QHD gaming with 27" 1500R curved 260Hz monitor
The CQ27G4Z2 is built for gamers who want immersive curved gaming combined with ultra-fast competitive performance. Its 27-inch QHD gaming monitor delivers sharp detail and smoother visuals, while the aggressive 1500R curved display creates a more immersive field of view for FPS games, racing games and cinematic open-world experiences. With a maximum 260Hz refresh rate and responsive 1ms GtG Fast VA panel, gameplay feels exceptionally fluid and precise, helping reduce motion blur and improve reaction timing during fast-paced competitive gaming. HDR400 support enhances contrast, shadow detail and highlights, bringing richer colours and greater depth to every scene for a more dynamic and realistic gaming experience.

Specifications

Performance
Built-in camera	No
Low Blue Light technology	Yes
Flicker-free technology	Yes
Brand specific technologies	Crosshair
Low input lag	Yes
FPS counter	Yes
Dial point	Yes
Shadow control	Yes
Motion blur reduction	Yes
Display
Display brightness (typical)	350 cd/m²
Screen shape	Curved
Display number of colours	16.7 million colours
Native aspect ratio	16:9
Pixel density	108.8 ppi
Maximum refresh rate	260 Hz
sRGB coverage (typical)	125.9%
Adobe RGB coverage	92.2%
HD type	Quad HD
Display technology	LED
Viewing angle, horizontal	178°
Viewing angle, vertical	178°
Pixel pitch	0.2331 x 0.2331 mm
Backlight type	W-LED
Display resolution	2560 x 1440 pixels
Response time	1 ms
Display diagonal	68.6 cm (27")
Contrast ratio (typical)	3000:1
Touchscreen	No
High Dynamic Range (HDR) supported	Yes
Panel type	Fast VA
DCI-P3 coverage	95.8%
High Dynamic Range (HDR) technology	DisplayHDR 400
Screen curvature rating	1500R
Display diagonal (metric)	68.5 cm
LED backlight	Yes
Colour gamut standard	Adobe RGB, DCI-P3, sRGB
Response time measurement type	GTG (Gray to Gray)
Response time (MPRT)	0.3 ms
Anti-glare screen	Yes
Management features
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
Picture-in-Picture	Yes
Multimedia
Built-in camera	No
Design
Market positioning	Gaming
Product colour	Black, Red
Front bezel colour	Black
Detachable stand	Yes
Bezel thickness type	Frameless
Camera
Built-in camera	No
Ports & interfaces
Built-in USB hub	No
Headphone out	Yes
HDMI ports quantity	2
DisplayPorts quantity	1
Headphone connectivity	3.5 mm
HDMI	Yes
HDMI version	2.0
DisplayPort version	1.4
Technical details
Height (without stand)	367.6 mm
Depth (without stand)	78.6 mm
Width (without stand)	611.5 mm
Cable lock slot	Yes
HDMI	Yes
Product colour	Black, Red
Front bezel colour	Black
Warranty period	3 year(s)
Power supply type	Internal
Weight (with stand)	5.37 kg
Touchscreen	No
Ergonomics
VESA mounting	Yes
Cable lock slot	Yes
Panel mounting interface	100 x 100 mm
Swivelling	Yes
Swivel angle range	-30 - 30°
Tilt angle range	-3 - 21°
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
Picture-in-Picture	Yes
Height adjustment	Yes
Cable lock slot type	Kensington
Tilt adjustment	Yes
Adjustable height (max)	13 cm
Power
Power supply type	Internal
Power consumption (standby)	0.5 W
Power consumption (typical)	25 W
Power consumption (off)	0.3 W
Energy efficiency scale	A to G
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
Weight & dimensions
Height (without stand)	367.6 mm
Depth (without stand)	78.6 mm
Width (without stand)	611.5 mm
Width (with stand)	611.5 mm
Depth (with stand)	239.4 mm
Height (with stand)	239.4 mm
Weight (with stand)	5.37 kg
Weight (without stand)	5.37 kg
Package width	840 mm
Package depth	186 mm
Package height	480 mm
Package weight	8 kg
Packaging data
Package width	840 mm
Package depth	186 mm
Package height	480 mm
Package weight	8 kg
Cables included	AC, HDMI, DisplayPort
Packaging content
Cables included	AC, HDMI, DisplayPort
Other features
DCI-P3 coverage	95.8%
Bezel thickness type	Frameless
Warranty period	3 year(s)
Brand specific technologies	Crosshair
Low input lag	Yes
FPS counter	Yes
Dial point	Yes
Shadow control	Yes
Motion blur reduction	Yes
Height (without stand)	367.6 mm
Depth (without stand)	78.6 mm
Width (without stand)	611.5 mm
HDMI	Yes
Energy efficiency scale	A to G
Power supply type	Internal
Touchscreen	No
Front bezel colour	Black