AOC G4 CQ27G4Z2P 27″ 400Hz Monitor

27 inch · 2560 x 1440 · 400 Hz · Fast VA

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Screen size 27 inch
Resolution 2560 x 1440
Refresh rate 400 Hz
Panel Fast VA
Response time 1 ms

AOC G4 CQ27G4Z2P 27″ 400Hz Monitor is a 27-inch monitor with 2560 x 1440 resolution, a 400 Hz refresh rate and Fast VA panel. The high refresh rate makes fast games look smoother. It came out in 2026.

Released: 2026-07-30

Specifications

Key specs

Screen size: 27 inch
Resolution: 2560 x 1440
Refresh rate: 400 Hz
Panel: Fast VA
Response time: 1 ms
Released: 2026-07-30
Part number: CQ27G4Z2P
EAN / UPC: 4038986183703

Display

Display diagonal: 68.6 cm (27")
Display resolution: 2560 x 1440 pixels
HD type: Quad HD
Native aspect ratio: 16:9
Display technology: LCD
Panel type: Fast VA
LED backlight: Yes
Backlight type: W-LED
Display brightness (typical): 350 cd/m²
Response time: 1 ms
Response time measurement type: GTG (Gray to Gray)
Response time (MPRT): 0.3 ms
Anti-glare screen: Yes
Screen shape: Curved
Screen curvature rating: 1500R
Contrast ratio (typical): 4000:1
Maximum refresh rate: 400 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 16.7 million colours
Pixel pitch: 0.2331 x 0.2331 mm
Pixel density: 108.8 ppi
Display diagonal (metric): 68.5 cm
High Dynamic Range (HDR) supported: Yes
Colour gamut standard: Adobe RGB, DCI-P3, sRGB
sRGB coverage (typical): 125.9%
Adobe RGB coverage: 92.2%
DCI-P3 coverage: 95.8%

Performance

VESA Adaptive Sync support: Yes
Flicker-free technology: Yes
Low Blue Light technology: Yes

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Design

Market positioning: Gaming
Product colour: Black, Red
Front bezel colour: Black
Detachable stand: Yes

Ports & interfaces

HDMI: Yes
HDMI ports quantity: 2
HDMI version: 2.0
DisplayPorts quantity: 1
DisplayPort version: 1.4
Headphone out: Yes
Headphone connectivity: 3.5 mm

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Cable lock slot: Yes
Cable lock slot type: Kensington
Height adjustment: Yes
Adjustable height (max): 13 cm
Swivelling: Yes
Swivel angle range: -30 - 30°
Tilt adjustment: Yes
Tilt angle range: -3 - 21°
Picture-in-Picture: Yes
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

Power

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): 25 W
Power consumption (standby): 0.5 W
Power consumption (off): 0.3 W
Power supply type: Internal
Energy efficiency scale: A to G

Weight & dimensions

Width (with stand): 611.5 mm
Depth (with stand): 239.4 mm
Height (with stand): 239.4 mm
Weight (with stand): 5.37 kg
Width (without stand): 611.5 mm
Depth (without stand): 78.6 mm
Height (without stand): 367.6 mm

Other features

Brand specific technologies: Crosshair
Low input lag: Yes
FPS counter: Yes
Dial point: Yes
Shadow control: Yes
Motion blur reduction: Yes
Warranty period: 3 year(s)
Bezel thickness type: Frameless

Check the manufacturer's page before buying.

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About this product

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.

User manual (PDF)

CQ27G4Z2P vs similar monitors

	AOC G4 CQ27G4Z2P 27″ 400Hz Monitor	AOC G4 CQ32G4ZA 32″ 500Hz Monitor	AOC Q27G40XMN/69 27″ 180Hz Monitor	AOC Gaming
Screen size	27 inch	32 inch	27 inch	27 inch
Resolution	2560 x 1440	2560 x 1440	2560 x 1440	2560 x 1440
Refresh rate	400 Hz	500 Hz	180 Hz	260 Hz
Panel	Fast VA	Fast VA	Fast VA	Fast VA
Response time	1 ms	1 ms	1 ms	1 ms
Released	2026	2026	2026	2026