iiyama G-MASTER GOB2701QSC-B1 27" QHD 280Hz OLED Monitor
iiyama
iiyama G-MASTER GOB2701QSC-B1 27" QHD 280Hz OLED Monitor
The iiyama G-MASTER GOB2701QSC-B1 is a 27-inch QHD OLED gaming monitor built for competitive players and creative professionals who need accurate colour alongside high-speed performance. Its 4th generation Tandem OLED panel delivers true infinite contrast and a 1,500 nit peak HDR brightness that conventional LCD displays cannot match. A built-in KVM switch, wide ergonomic range and a full complement of modern ports make it a practical centrepiece for a multi-device desktop.
Why this product
280 Hz refresh with 0.03 ms response
The panel's 280 Hz maximum refresh rate and 0.03 ms GTG response time keep fast-moving scenes sharp and input lag as low as possible for competitive play.
Tandem OLED: 1,500 nit peak HDR brightness
The 4th generation META 3.0 WOLED architecture uses a 4-stack design with separated red and green emitters, reaching 1,500 cd/m² peak HDR output — significantly brighter than conventional single-stack OLED panels.
Infinite contrast, true black
Each pixel produces its own light and can switch off completely, giving an infinite contrast ratio and DisplayHDR True Black 400 certification — dark scenes contain genuine black rather than dark grey.
Wide colour coverage for creative work
99.5% DCI-P3, 95% Adobe RGB and 150% sRGB coverage with 10-bit colour depth (1.07 billion colours) means the display is usable beyond gaming for colour-critical image and video work.
USB-C with 65 W Power Delivery
A single USB-C cable can carry video signal in DisplayPort Alt Mode and deliver 65 W to charge a connected laptop, reducing cable clutter at the desk.
Built-in KVM switch and hub
The integrated KVM switch lets one keyboard, mouse and USB peripherals control two connected computers, while the USB 3.2 Type-A hub adds ports directly at the display.
- Screen Size27" (68.6 cm)
- Resolution2560 × 1440 (QHD)
- Refresh Rate280 Hz
- Response Time0.03 ms GTG
- Panel TypeTandem OLED (META 3.0 / 4th Gen WOLED)
- Peak HDR Brightness1,500 cd/m²
- VRR SupportG-SYNC Compatible, FreeSync Premium
- USB-C Power Delivery65 W
- SKUIIY-1622
- EAN4948570127948
- NVIDIA G-SYNC Compatible over DisplayPort, with variable refresh rate from 48 to 280 Hz.
- AMD FreeSync Premium and VESA Adaptive-Sync supported, making it compatible with current AMD and Intel graphics cards that support those standards.
- Two HDMI 2.1 ports support consoles and PCs that output at high refresh rates over HDMI.
- USB-C DisplayPort Alt Mode input accepts single-cable connection from compatible laptops and compact PCs.
- VESA 100 × 100 mm hole pattern is compatible with aftermarket monitor arms and mounts.
- G-SYNC Compatible certification applies over DisplayPort only; HDMI and USB-C connections do not carry the G-SYNC Compatible designation.
Best for
- Competitive gamers who need the highest available refresh rate (280 Hz) and near-instantaneous response (0.03 ms GTG) on a QHD panel.
- HDR gaming and media where 1,500 nit peak brightness and infinite contrast make high-dynamic-range content look noticeably different from SDR displays.
- Colour-sensitive creative work requiring wide gamut: 99.5% DCI-P3 and 95% Adobe RGB coverage at 10-bit depth suits photo and video editors who also game.
- Multi-device desks where the KVM switch and USB-C 65 W Power Delivery simplify switching between a gaming PC and a laptop with fewer cables.
- Users who want ergonomic flexibility: 150 mm height adjustment, ±45° swivel, -5°/+23° tilt and ±90° pivot cover a wide range of seating positions and orientations.
Trade-offs
- Buyers on a budget: Tandem OLED panels carry a significantly higher cost than comparable LCD or standard OLED alternatives at the same screen size.
- Static-image professional workflows such as extended spreadsheet use or digital illustration with persistent toolbars, where OLED pixel shift and care features are required to manage burn-in risk.
- Bright-room environments: although anti-glare coating is fitted, the 335 cd/m² typical brightness is lower than many high-nit LCD panels designed for use in well-lit offices.
- 4K content creators: the native resolution is QHD (2560 × 1440), not 4K UHD, so it does not display 4K assets at pixel-for-pixel accuracy.
Experience the ultimate in visual perfection with the new iiyama G-Master GOB2701QSC-B1 Tandem OLED monitor, engineered to redefine your viewing standards with its premium, self-emissive display technology. Delivering the "infinite" contrast and deep blacks that only a true OLED panel can provide, it brings every scene to life with stunning realism and flawless backlight uniformity. Prepare to be amazed by its top-tier, vibrant HDR performance and exceptional color spectrum, while the highly effective anti-glare coating ensures pure clarity without annoying graininess. Designed for elite competitive play, this high-end OLED boasts a blistering refresh rate combined with ultra-low input lag to guarantee instantaneous, fluid responsiveness.
The 4th generation WOLED technology, also known as META 3.0 or Primary RGB Tandem OLED, introduces a breakthrough 4-stack architecture with separated red and green emitters. This innovative structure allows monitors to achieve richer color purity and a peak HDR brightness of 1,500 nits. This monitor offers a 0.03 ms (GTG) response time as well as excellent smoothness in gaming with a maximum refresh rate of 280 Hz and NVIDIA G-Sync technology.
General
| Brand | iiyama |
|---|---|
| Model | G-MASTER GOB2701QSC-B1 |
| Screen Size | 27" (68.6 cm) |
| Colour | Black |
| Weight (with stand) | 5.7 kg |
| Weight (without stand) | 3.8 kg |
Display
| Panel Type | WOLED (Tandem OLED / META 3.0 / 4th Generation Primary RGB Tandem OLED) |
|---|---|
| Resolution | 2560 × 1440 (QHD / WQHD), 16:9 |
| Refresh Rate | 280 Hz (max) |
| Response Time | 0.03 ms (GTG) |
| Peak HDR Brightness | 1,500 cd/m² |
| Typical Brightness | 335 cd/m² |
| Contrast Ratio | Infinite (OLED) |
| HDR Certification | DisplayHDR True Black 400 |
| Color Gamut | 99.5% DCI-P3 / 95% Adobe RGB / 150% sRGB |
| Color Depth | 10-bit (1.07 billion colours) |
Connectivity
| HDMI | 2× HDMI 2.1 |
|---|---|
| DisplayPort | 1× DisplayPort 2.1 |
| USB-C | 1× USB-C (DP Alt Mode, 65 W Power Delivery) |
| USB Hub | 2× USB-A 3.2 (5 Gbps), 1× USB-B upstream |
| Audio Output | 1× Headphone output |
| Speakers | 2× 5 W integrated |
| KVM Switch | Yes (two input sources) |
| Variable Refresh Rate | NVIDIA G-SYNC Compatible (48–280 Hz via DP); AMD FreeSync Premium; VESA Adaptive-Sync |
Ergonomics & Mounting
| Height Adjustment | 150 mm |
|---|---|
| Tilt | -5° / +23° |
| Swivel | ±45° |
| Pivot (Rotation) | ±90° |
| VESA Mount | 100 × 100 mm |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.