Experience stunning clarity and detail with the AOC G4 U27G4R 27” 4K Ultra HD LED Monitor. Featuring a 3840 x 2160 resolution, it delivers ultra-sharp visuals, vibrant colors, and smooth performance for gaming, creative work, and entertainment. Its LED technology ensures consistent brightness and exceptional display quality.
Dominate your gaming experience with the U27G4R Dual-Frame Monitor, a cutting-edge display offering ultimate flexibility between UHD at 160Hz and FHD at 320Hz.
Meet the U27G4R Dual-Frame Monitor, featuring the ability to switch between UHD@160Hz and FHD@320Hz resolutions and refresh rates for ultimate versatility in gaming and content creation. With a Fast IPS panel, 1ms GtG, and 0.5ms MPRT, enjoy ultra-responsive performance and vibrant visuals. HDR400 and AdaptiveSync (G-Sync TBC) ensure smooth, tear-free action, while HDMI 2.1 provides superior connectivity. The ergonomic eSports base design offers comfort during long sessions, making the U27G4R perfect for seamless multitasking and immersive gaming.
Specifications
| Display |
| DCI-P3 coverage |
95.9% |
| Adobe RGB coverage |
93.4% |
| sRGB coverage (typical) |
124.7% |
| High Dynamic Range (HDR) technology |
DisplayHDR 400 |
| High Dynamic Range (HDR) supported |
Yes |
| Display diagonal (metric) |
68.6 cm |
| Digital vertical frequency |
48 - 320 Hz |
| Digital horizontal frequency |
30 - 360 kHz |
| Pixel density |
163 ppi |
| Display number of colours |
16.7 million colours |
| Viewing angle, vertical |
178° |
| Viewing angle, horizontal |
178° |
| Maximum refresh rate |
320 Hz |
| Contrast ratio (dynamic) |
80000000:1 |
| Contrast ratio (typical) |
1000:1 |
| Screen shape |
Flat |
| Anti-glare screen |
Yes |
| Response time (MPRT) |
0.3 ms |
| Response time measurement type |
GTG (Gray to Gray) |
| Response time |
1 ms |
| Display brightness (typical) |
400 cd/m² |
| Backlight type |
W-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 |
| 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 |
| Headphone connectivity |
3.5 mm |
| Headphone outputs |
1 |
| Headphone out |
Yes |
| DisplayPort version |
1.4 |
| DisplayPorts quantity |
1 |
| HDMI version |
2.1 |
| HDMI ports quantity |
2 |
| HDMI |
Yes |
| USB Type-A downstream ports quantity |
4 |
| Number of upstream ports |
1 |
| USB upstream port type |
USB Type-B |
| USB hub version |
3.2 Gen 1 (3.1 Gen 1) |
| Built-in USB hub |
Yes |
| Ergonomics |
| 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 |
| On Screen Display (OSD) |
Yes |
| Picture-in-Picture |
Yes |
| Tilt angle range |
-3.5 - 21.5° |
| Tilt adjustment |
Yes |
| Swivel angle range |
-30 - 30° |
| Swivelling |
Yes |
| Pivot angle |
-90 - 90° |
| Pivot |
Yes |
| Adjustable height (max) |
13 cm |
| Height adjustment |
Yes |
| Cable lock slot type |
Kensington |
| Cable lock slot |
Yes |
| Panel mounting interface |
100 x 100 mm |
| VESA mounting |
Yes |
| Power |
| Energy efficiency scale |
A to G |
| Power supply type |
Internal |
| Power consumption (off) |
0.3 W |
| Power consumption (standby) |
0.5 W |
| Power consumption (typical) |
34 W |
| Energy consumption (HDR) per 1000 hours |
50 kWh |
| Energy consumption (SDR) per 1000 hours |
25 kWh |
| Energy efficiency class (HDR) |
G |
| Energy efficiency class (SDR) |
F |
| Weight & dimensions |
| Weight (without stand) |
4.41 kg |
| Height (without stand) |
366.3 mm |
| Depth (without stand) |
51.3 mm |
| Width (without stand) |
613.9 mm |
| Weight (with stand) |
6.35 kg |
| Height (with stand) |
516 mm |
| Depth (with stand) |
227.6 mm |
| Width (with stand) |
613.9 mm |
| Packaging data |
| Package weight |
9.95 kg |
| Package height |
162 mm |
| Package depth |
481 mm |
| Package width |
825 mm |
| Packaging content |
| HDMI cable length |
1.8 m |
| DisplayPort cable length |
1.8 m |
| Sustainability |
| Doesn't contain |
PVC/BFR |
| Other features |
| Certification |
WEEE,REACH compliant,RoHs compliant,CB,TUV-Bauart-Mark,ISO 9241-307,EAC,FCC |
| Package weight |
9.95 kg |
| Warranty period |
3 year(s) |
| Local dimming |
Yes |
| Motion blur reduction |
Yes |
| Shadow control |
Yes |
| Dial point |
Yes |
| FPS counter |
Yes |
| Low input lag |
Yes |
| Brand specific technologies |
Crosshair |
