Many gamers and creators struggle with blurry images, slow response and eye strain when they use ordinary monitors. Those problems make long sessions uncomfortable and can hurt performance in fast-paced games or detailed design work. The AOC G4 U27G4XM 27" 3840 x 2160 pixels 4K Ultra HD LED monitor solves this by delivering crystal-clear 4K resolution, a 1 ms response time and a 160 Hz refresh rate, so you see every frame instantly and your eyes stay relaxed.
AOC G4 U27G4XM 27" 3840 x 2160 pixels 4K Ultra HD LED Monitor Black, Red
Step into a world where every pixel looks sharp and every motion feels smooth. This AOC gaming monitor is built for high-speed play and creative work. If you notice lag, ghosting or dull colors, you need a screen that can keep up with the latest titles and 4K video editing. AOC gives you that power with Mini-LED backlight, HDR1000 and adaptive sync, so you never miss a detail.
Usages
The monitor works great for competitive gaming, where fast response and high refresh give you an edge. It also fits designers and video editors who need accurate colors and 4K detail for photo retouching or timeline work. Streamers can use the built-in USB hub and picture-in-picture to manage chat and gameplay on one screen. Finally, home users enjoy movies and streaming with vivid HDR and low blue light for comfortable watching.
Benefits
- Ultra-sharp 4K image lets you see fine details without scaling.
- 1 ms response and 160 Hz refresh keep motion smooth and reduce input lag.
- HDR1000 and 98% DCI-P3 color coverage deliver vivid, true-to-life colors.
- Low blue light and flicker-free tech protect your eyes during long sessions.
- Adjustable stand and VESA mount let you set the perfect viewing angle.
Key Features
- 27-inch Fast IPS panel with 3840 x 2160 resolution.
- Mini-LED backlight with 1152 local dimming zones.
- DisplayHDR 1000 certification for high dynamic range.
- Adaptive Sync support to eliminate screen tearing.
- Built-in USB 3.2 hub with four downstream ports.
- Detachable, height-adjustable stand with tilt, swivel and pivot.
- VESA-compatible mounting (100 x 100 mm).
- Low input lag and FPS counter for competitive gamers.
- Anti-glare coating reduces reflections in bright rooms.
- Power-efficient design with standby consumption under 0.3 W.
Specifications
| Display |
| DCI-P3 coverage |
98% |
| Adobe RGB coverage |
96.5% |
| Colour gamut standard |
Adobe RGB, DCI-P3 |
| High Dynamic Range (HDR) technology |
DisplayHDR 1000 |
| High Dynamic Range (HDR) supported |
Yes |
| Display diagonal (metric) |
68.58 cm |
| Digital vertical frequency |
48 - 320 Hz |
| Digital horizontal frequency |
30 - 360 kHz |
| Viewable size, vertical |
33.6 cm |
| Viewable size, horizontal |
59.7 cm |
| Pixel density |
109 ppi |
| Pixel pitch |
0.2331 x 0.2331 mm |
| Display number of colours |
1.073 billion colours |
| Viewing angle, vertical |
178° |
| Viewing angle, horizontal |
178° |
| Maximum refresh rate |
320 Hz |
| Dynamic contrast ratio marketing name |
Mega DCR |
| Contrast ratio (dynamic) |
80000000:1 |
| Contrast ratio (typical) |
1000:1 |
| Screen shape |
Flat |
| Anti-glare screen |
Yes |
| Response time measurement type |
GTG (Gray to Gray) |
| Response time |
1 ms |
| Display brightness (typical) |
450 cd/m² |
| Backlight type |
Mini LED |
| LED backlight |
Yes |
| Panel type |
Fast IPS |
| HD type |
4K Ultra HD |
| Touchscreen |
No |
| Display technology |
LED |
| Native aspect ratio |
16:9 |
| Display resolution |
3840 x 2160 pixels |
| Display diagonal |
68.6 cm (27") |
| Performance |
| Game mode |
Yes |
| Low Blue Light technology |
Yes |
| Flicker-free technology |
Yes |
| VESA Adaptive Sync support |
Yes |
| Design |
| Detachable stand |
Yes |
| Front bezel colour |
Black |
| Frameless design |
Yes |
| Product colour |
Black, Red |
| Market positioning |
Gaming |
| Ports & interfaces |
| HDCP version |
1.4/2.2 |
| HDCP |
Yes |
| Headphone out |
Yes |
| DisplayPort version |
1.4 |
| DisplayPorts quantity |
1 |
| HDMI version |
2.1 |
| HDMI ports quantity |
1 |
| HDMI |
Yes |
| USB Type-A downstream ports quantity |
4 |
| Number of USB Type-B upstream ports quantity |
1 |
| USB hub version |
3.2 Gen 1 (3.1 Gen 1) |
| Built-in USB hub |
Yes |
| Ergonomics |
| Picture-in-Picture |
Yes |
| Tilt angle range |
-3 - 21° |
| Tilt adjustment |
Yes |
| Swivel angle range |
-28 - 28° |
| Swivelling |
Yes |
| Pivot angle |
-90 - 90° |
| Pivot |
Yes |
| Adjustable height (max) |
13 cm |
| Height adjustment |
Yes |
| Cable lock slot |
Yes |
| Cable management |
Yes |
| Panel mounting interface |
100 x 100 mm |
| VESA mounting |
Yes |
| Power |
| Energy efficiency scale |
A to G |
| Power supply type |
Internal |
| Input current |
1.5 A |
| AC input frequency |
50/60 Hz |
| AC input voltage |
120 - 240 V |
| Power consumption (off) |
0.3 W |
| Power consumption (standby) |
0.3 W |
| Power consumption (typical) |
45 W |
| Energy consumption (HDR) per 1000 hours |
40 kWh |
| Energy consumption (SDR) per 1000 hours |
26 kWh |
| Energy efficiency class (HDR) |
G |
| Energy efficiency class (SDR) |
G |
| Weight & dimensions |
| Weight (without stand) |
5.6 kg |
| Height (without stand) |
366.4 mm |
| Depth (without stand) |
59.4 mm |
| Width (without stand) |
614 mm |
| Weight (with stand) |
7.1 kg |
| Height (with stand) |
516.6 mm |
| Depth (with stand) |
240 mm |
| Width (with stand) |
614 mm |
| Packaging data |
| Package weight |
10.3 kg |
| Package height |
481 mm |
| Package depth |
159 mm |
| Package width |
820 mm |
| Packaging content |
| Power cable length |
1.8 m |
| HDMI cable length |
1.8 m |
| Cables included |
AC, HDMI, DisplayPort, USB |
| Other features |
| Certification |
WEEE,REACH compliant,RoHs compliant,CB,TUV-Bauart-Mark,ISO 9241-307,EAC,FCC |
| Bezel thickness type |
Frameless |
| Compliance certificates |
CE |
| Package weight |
10.3 kg |
| Warranty period |
3 year(s) |
| Local dimming zones |
1152 |
| Local dimming |
Yes |
| Shadow control |
Yes |
| Dial point |
Yes |
| FPS counter |
Yes |
| Low input lag |
Yes |
