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iiyama G-MASTER Unleash your full gaming potential with the versatile 4K GB2771UHSU Red Eagle
4K clarity for next-level immersion
Ultra HD resolution delivers crystal-clear visuals and stunning detail, bringing your games to life with incredible sharpness and realism. Whether you're exploring open worlds or battling online!

Dual Refresh Rate
Switch effortlessly between 4K at 144Hz for stunning, immersive visuals and FHD at 288Hz for ultra-fast, competitive gameplay. Whether you’re exploring vast worlds or chasing every millisecond, the choice is yours.

NVIDIA G-SYNC Compatible
Unlock tear-free, ultra-smooth gameplay with NVIDIA G-SYNC, syncing your monitor to your GPU for fluid motion, reduced stutter, and crystal-clear action. (DisplayPort Only)

HDMI 2.1
Play smoother games than ever before. HDMI 2.1 supports a range of higher video resolutions and refresh rates. The increased bandwidth allows dynamic HDR with 4K120 and future HDR standards, resulting in a more fluid and detailed gaming experience.
| Display | |
|---|---|
| HDCP | Yes |
| Display brightness (typical) | 450 cd/m² |
| Display number of colours | 1.07 billion colours |
| Native aspect ratio | 16:9 |
| DDC/CI | Yes |
| Maximum refresh rate | 144 Hz |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Pixel pitch | 0.155 x 0.155 mm |
| Horizontal scan range | 30 - 360 kHz |
| Viewable size, horizontal | 59.7 cm |
| Viewable size, vertical | 33.6 cm |
| Display resolution | 3840 x 2160 pixels |
| Display diagonal | 68.6 cm (27") |
| Contrast ratio (typical) | 1500:1 |
| High Dynamic Range (HDR) supported | Yes |
| Panel type | IPS |
| Colour depth | 8 bit |
| High Dynamic Range (HDR) technology | High Dynamic Range (HDR) 400 |
| Display diagonal (metric) | 68.6 cm |
| Audio | |
| Built-in speaker(s) | Yes |
| RMS rated power | 4 W |
| Performance | |
| Built-in speaker(s) | Yes |
| RMS rated power | 4 W |
| AMD FreeSync type | FreeSync Premium |
| AMD FreeSync | Yes |
| Low Blue Light technology | Yes |
| Flicker-free technology | Yes |
| Multimedia | |
| Number of speakers | 2 |
| Built-in speaker(s) | Yes |
| RMS rated power | 4 W |
| Design | |
| Product colour | Black |
| Ports & interfaces | |
| Built-in USB hub | Yes |
| USB hub version | 3.2 Gen 1 (3.1 Gen 1) |
| Headphone out | Yes |
| HDMI ports quantity | 2 |
| DisplayPorts quantity | 1 |
| HDCP | Yes |
| Technical details | |
|---|---|
| Height (without stand) | 417 mm |
| Cable lock slot | Yes |
| Product colour | Black |
| Power supply type | Internal |
| Weight (with stand) | 5.97 kg |
| Ergonomics | |
| VESA mounting | Yes |
| Cable lock slot | Yes |
| Panel mounting interface | 100 x 100 mm |
| Swivelling | Yes |
| Swivel angle range | -45 - 45° |
| Pivot | Yes |
| Height adjustment | Yes |
| Cable lock slot type | Kensington |
| Cable management | Yes |
| Tilt adjustment | Yes |
| Adjustable height (max) | 15 cm |
| Power | |
| Power supply type | Internal |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Power consumption (standby) | 0.5 W |
| Power consumption (typical) | 26 W |
| Power consumption (off) | 0.3 W |
| Energy efficiency class (SDR) | F |
| Weight & dimensions | |
| Height (without stand) | 417 mm |
| Width (with stand) | 614.5 mm |
| Depth (with stand) | 213 mm |
| Height (with stand) | 567 mm |
| Weight (with stand) | 5.97 kg |
| Weight (without stand) | 4 kg |
| Package width | 694 mm |
| Package depth | 694 mm |
| Package height | 440 mm |
| Package weight | 9 kg |
| Packaging data | |
| Package width | 694 mm |
| Package depth | 694 mm |
| Package height | 440 mm |
| Package weight | 9 kg |
| Other features | |
| Height (without stand) | 417 mm |
| Power supply type | Internal |