The G-Master GB2591HSU-B1 is crafted to help you unleash your full gaming potential. With G-Sync Compatibility for smooth, tear-free gameplay and a 320Hz refresh rate, every movement feels fast and fluid. The 24.5” Fast IPS panel delivers clear, sharp visuals, while the 0.4ms response ensures you stay ahead in every game, without ever being held back by your gear. For added ergonomic comfort, the monitor includes a 150mm height-adjustable stand to fit your setup perfectly.
Technical specifications
Display
| Display diagonal | 62.2 cm (24.5") |
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| Display resolution | 1920 x 1080 pixels |
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| HD type | Full HD |
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| Native aspect ratio | 16:9 |
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| Display technology | LED |
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| Panel type | Fast IPS |
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| Touchscreen | No |
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| Display brightness (typical) | 350 cd/m² |
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| Response time | 0.4 ms |
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| Response time (MPRT) | 0.4 ms |
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| Display surface | Matt |
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| Screen shape | Flat |
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| Contrast ratio (typical) | 1000:1 |
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| Contrast ratio (dynamic) | 100000000:1 |
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| Maximum refresh rate | 320 Hz |
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| Viewing angle, horizontal | 178° |
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| Viewing angle, vertical | 178° |
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| Display number of colours | 16.7 million colours |
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| Pixel pitch | 0.2802 x 0.2802 mm |
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| Horizontal scan range | 30 - 360 kHz |
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| Viewable size, horizontal | 54.4 cm |
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| Viewable size, vertical | 30.3 cm |
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| Display diagonal (metric) | 62 cm |
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| High Dynamic Range (HDR) supported | Yes |
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| High Dynamic Range (HDR) technology | High Dynamic Range 10 (HDR10) |
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| Colour depth | 8 bit |
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Performance
| NVIDIA G-SYNC | Yes |
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| NVIDIA G-SYNC type | G-SYNC |
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| AMD FreeSync | Yes |
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| VESA Adaptive Sync support | Yes |
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| Flicker-free technology | Yes |
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| Low Blue Light technology | Yes |
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Multimedia
| Number of speakers | 2 |
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| RMS rated power | 8 W |
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| Built-in speaker(s) | Yes |
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| Built-in camera | No |
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Design
| Market positioning | Gaming |
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| Product colour | Black |
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Ports & interfaces
| Built-in USB hub | Yes |
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| USB hub version | 3.2 Gen 1 (3.1 Gen 1) |
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| Number of downstream ports | 4 |
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| HDMI | Yes |
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| HDMI ports quantity | 2 |
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| HDMI version | 2.1 |
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| DisplayPorts quantity | 1 |
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| DisplayPort version | 1.4 |
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| Headphone out | Yes |
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| HDCP | Yes |
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Ergonomics
| VESA mounting | Yes |
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| Panel mounting interface | 100 x 100 mm |
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| Wall mountable | Yes |
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| Cable management | Yes |
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| Cable lock slot | Yes |
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| Cable lock slot type | Kensington |
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| Height adjustment | Yes |
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| Adjustable height (max) | 15 cm |
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| Pivot | Yes |
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| Pivot angle | 0 - 90° |
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| Swivelling | Yes |
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| Swivel angle range | -45 - 45° |
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| Tilt adjustment | Yes |
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| Tilt angle range | 5 - 23° |
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| On Screen Display (OSD) | Yes |
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| On Screen Display (OSD) languages | Czech, German, English, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian |
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Power
| Energy efficiency class (SDR) | E |
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| Energy efficiency class (HDR) | G |
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| Energy consumption (SDR) per 1000 hours | 18.4 kWh |
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| Energy consumption (HDR) per 1000 hours | 31 kWh |
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| Power consumption (typical) | 30 W |
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| Power consumption (standby) | 0.3 W |
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| Power consumption (off) | 0.3 W |
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| AC input voltage | 100 - 240 V |
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| AC input frequency | 50/60 Hz |
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| Power supply type | Internal |
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| Energy efficiency scale | A to G |
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Weight & dimensions
| Width (with stand) | 557 mm |
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| Depth (with stand) | 55.5 mm |
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| Height (with stand) | 324 mm |
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| Weight (with stand) | 5.3 kg |
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Sustainability
| Sustainability certificates | ErP |
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Technical details