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AOC G4 Q27G4ZR computer monitor 68.6 cm (27") 2560 x 1440 pixels Quad HD LED Black, Red

240Hz Refresh Rate
240Hz 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.

Fast IPS
Unlock your gaming potential with Fast IPS panels offering rapid pixel response times of up to 1ms GtG. Say farewell to motion blur as you enjoy sharper images, enhancing precision targeting and boosting performance in high-speed games. Experience the advantages of fast IPS technology, including vibrant colors and wide viewing angles, for an immersive gaming experience and unleash your full potential.

1ms Response time GTG - Grey-to-Grey
GtG stands for Grey-To-Grey and represents how long it takes for one pixel to change between one gray level to the next. In gaming, every millisecond counts and can be the differentiator between hitting or missing a shot. Fast response time also eliminates ghosting and motion blur.

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.

E-sports monitor stand
Our new stand. Co-designed with eSports professionals, allows you to maximize free space for all your peripherals. The base of the monitor is designed to reduce the footprint of your monitor on your desk, and even allows you to place your keyboard on top. The stand includes cable management to keep your desk clean. No matter what genre you compete in, we want you to feel like a pro.
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.

Speakers
Built-in speakers make it easy to catch up with family, friends and colleagues. For movies, music, games and more, you’ll enjoy quality audio without the hassle of connecting external speakers.
Vesa Certified DisplayHDR™ 400
VESA Certified DisplayHDR™ 400 delivers a significant step up from regular SDR displays. Unlike other 'HDR compatible' screens, true DisplayHDR™ 400 produces astonishing brightness, contrast, and color peak brightness of up to 400 nits; images come to life with notable highlights while featuring deeper, more nuanced blacks.It renders a fuller palette of rich new colors, delivering a visual experience that engages your senses.

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.
The Q27G4ZR combines stunning QHD resolution with a blistering 240Hz refresh rate, overclockable to 260Hz, and a 1ms GtG response time on a Fast IPS panel for ultra-smooth, responsive gameplay. With HDR400, low input lag, and an eSports base design, every frame is crisp and fluid. Featuring an ergonomic stand, built-in speakers, and G-Menu software for customization, this monitor is built to enhance both performance and comfort in every session.
Audio | |
---|---|
Built-in speaker(s) | No |
Performance | |
Built-in speaker(s) | No |
Built-in camera | No |
VESA Adaptive Sync support | Yes |
Low Blue Light technology | Yes |
Flicker-free technology | Yes |
Low input lag | Yes |
FPS counter | Yes |
Dial point | Yes |
Shadow control | Yes |
Motion blur reduction | Yes |
Display | |
Display brightness (typical) | 400 cd/m² |
Screen shape | Flat |
Display number of colours | 16.7 million colours |
Native aspect ratio | 16:9 |
Pixel density | 108.8 ppi |
Maximum refresh rate | 260 Hz |
HD type | Quad HD |
Display technology | LED |
Viewing angle, horizontal | 178° |
Viewing angle, vertical | 178° |
Digital vertical frequency | 48 - 260 Hz |
Backlight type | W-LED |
Display resolution | 2560 x 1440 pixels |
Response time | 1 ms |
Display diagonal | 68.6 cm (27") |
Contrast ratio (typical) | 1000:1 |
Touchscreen | No |
High Dynamic Range (HDR) supported | Yes |
Panel type | Fast IPS |
High Dynamic Range (HDR) technology | DisplayHDR 400 |
Display diagonal (metric) | 68.5 cm |
LED backlight | Yes |
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 |
Number of OSD languages | 19 |
On Screen Display (OSD) languages | Simplified Chinese, Traditional Chinese, Croatian, Czech, German, Dutch, English, Spanish, Finnish, French, Italian, Japanese, Korean, Polish, Portuguese, Russian, Swedish, Turkish, Ukrainian |
Multimedia | |
Built-in speaker(s) | No |
Built-in camera | No |
Design | |
Market positioning | Gaming |
Heavy metals free | Hg (mercury) |
Product colour | Black, Red |
Front bezel colour | Black |
Detachable stand | Yes |
Camera | |
Built-in camera | No |
Ports & interfaces | |
Built-in USB hub | No |
Headphone out | Yes |
HDMI ports quantity | 2 |
DisplayPorts quantity | 1 |
Headphone outputs | 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) | 78.7 mm |
Width (without stand) | 611.5 mm |
HDMI | Yes |
Product colour | Black, Red |
Front bezel colour | Black |
Doesn't contain | PVC/BFR |
Warranty period | 3 year(s) |
Compliance certificates | REACH, RoHS, WEEE |
Power supply type | Internal |
Weight (with stand) | 4.97 kg |
Touchscreen | No |
Ergonomics | |
Panel mounting interface | 100 x 100 mm |
Swivelling | Yes |
Swivel angle range | -28 - 28° |
Tilt angle range | -3 - 21° |
Pivot | Yes |
On Screen Display (OSD) | Yes |
Pivot angle | -90 - 90° |
Number of OSD languages | 19 |
On Screen Display (OSD) languages | Simplified Chinese, Traditional Chinese, Croatian, Czech, German, Dutch, English, Spanish, Finnish, French, Italian, Japanese, Korean, Polish, Portuguese, Russian, Swedish, Turkish, Ukrainian |
Height adjustment | Yes |
Tilt adjustment | Yes |
Adjustable height (max) | 13 cm |
Power | |
Power supply type | Internal |
Power consumption (standby) | 0.5 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 | 48 kWh |
Weight & dimensions | |
Height (without stand) | 367.6 mm |
Depth (without stand) | 78.7 mm |
Width (without stand) | 611.5 mm |
Width (with stand) | 611.5 mm |
Depth (with stand) | 177 mm |
Height (with stand) | 457 mm |
Weight (with stand) | 4.97 kg |
Weight (without stand) | 4.05 kg |
Package width | 730 mm |
Package depth | 161 mm |
Package height | 440 mm |
Package weight | 8.26 kg |
Packaging data | |
Package width | 730 mm |
Package depth | 161 mm |
Package height | 440 mm |
Package weight | 8.26 kg |
Cables included | AC, DisplayPort, HDMI |
Packaging content | |
Cables included | AC, DisplayPort, HDMI |
Sustainability | |
Doesn't contain | PVC/BFR |
Other features | |
Heavy metals free | Hg (mercury) |
Warranty period | 3 year(s) |
Low input lag | Yes |
FPS counter | Yes |
Dial point | Yes |
Shadow control | Yes |
Motion blur reduction | Yes |
Compliance certificates | REACH, RoHS, WEEE |
Height (without stand) | 367.6 mm |
Depth (without stand) | 78.7 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 |