# 27" iiyama G-MASTER GB2771UHSU-B1 4K UHD LED monitor, 3840×2160, 16:9, 178°/178°, USB 3.2 hub, built-in speakers, height adjustable, VESA, black

**URL:** https://aio.lv/en/product--iiyama-gb2771uhsu-b1--11650126
**Data updated:** 2025-12-31 11:24 (EET)
**Category:** Monitors
**Manufacturer:** IIYAMA
**Manufacturer code:** GB2771UHSU-B1
**EAN:** 4948570127139
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 308.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 254.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--iiyama-gb2771uhsu-b1--11650126

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 7.27 EUR |

## Summary description

The iiyama G-MASTER GB2771UHSU-B1 is a 27" (68.6 cm) 4K Ultra HD LED monitor with 3840×2160 resolution and a native 16:9 aspect ratio. It offers wide 178°/178° viewing angles, built-in speakers and a USB 3.2 Gen 1 hub for peripherals. The screen supports VESA mounting and height adjustment, making it suitable for professional work, multimedia and general computing in a compact black design.

## Long description

The iiyama G-MASTER GB2771UHSU-B1 is a 27" (68.6 cm) 4K UHD IPS LED monitor offering 3840×2160 resolution and a native 16:9 aspect ratio. It combines high-resolution single‑player viewing at 4K/144Hz with the option to run at Full HD with an ultra‑fast 288Hz refresh rate for competitive play. The panel delivers 450 cd/m² brightness, wide 178°/178° viewing angles and built‑in speakers, while a USB 3.2 hub and height‑adjustable stand support flexible workstation setups.
Advantages
The monitor provides versatile performance for both immersive and competitive use by supporting 4K at 144Hz with a 0.8 ms MPRT and a Full HD 288Hz mode. NVIDIA G‑SYNC compatibility and AMD FreeSync reduce tearing and stuttering. An IPS panel ensures accurate colours and wide viewing angles; the built‑in USB 3.2 hub and speakers plus VESA mounting and height adjustment enhance ergonomic and connectivity options.
Suitable for
Gaming — single‑player 4K experiences and competitive Full HD play
Content creation and photo/video editing requiring colour accuracy and high brightness
Office and multitasking setups using the USB 3.2 hub for peripherals
Key specifications
Screen size: 27" (68.6 cm) LED IPS
Resolution: 3840 × 2160 (4K Ultra HD), 16:9
Refresh rate: up to 144Hz in 4K, up to 288Hz in Full HD
Response time: 0.8 ms MPRT (4K 144Hz)
Brightness: 450 cd/m²
Contrast ratio (typical): 1500:1
Viewing angles: 178°/178°
Connectivity: USB 3.2 hub (including 1x USB‑C downstream), built‑in speakers
Ergonomics: height adjustable, VESA mount compatible
Energy class (SDR/HDR): F / G; energy consumption SDR: 25.7 kWh/1000h
Colour: Black; MPN: GB2771UHSU-B1; EAN: 4948570127139
How to use
Connect the monitor to your PC or console using the appropriate video cable and configure the display resolution and refresh rate in your system settings to match your use case (4K/144Hz for high‑detail work or immersive play, Full HD/288Hz for maximum responsiveness). Use the built‑in USB 3.2 hub to attach peripherals and adjust the stand height for an ergonomic viewing position. Enable NVIDIA G‑SYNC or AMD FreeSync in graphics settings if supported to minimise tearing.
Usage recommendations
For best image quality when working with high‑resolution content, set the display to 3840×2160 and use 4K/144Hz where supported. Switch to Full HD/288Hz for competitive gaming to prioritise frame rate. Keep firmware and GPU drivers up to date and position the monitor at eye level to reduce strain.

## Specifications

### Display

| Feature | Value |
|---|---|
| Display diagonal | 27 " |
| Display technology | LED |
| HD type | 4K Ultra HD |
| Panel type | IPS |
| Display resolution | 3840 x 2160 |
| Pixel pitch | 0.155 x 0.155 |
| Contrast ratio (typical) | 1500:1 |
| Display brightness (typical) | 450 cd/m² |
| Viewing angle, vertical | 178 ° |
| Viewing angle, horizontal | 178 ° |
| Horizontal scan range | 30 - 360 |
| Display diagonal (metric) | 68.6 cm |
| Contrast ratio (dynamic) | 100000000:1 |
| Native aspect ratio | 16:9 |
| Vertical scan range | 48 - 288 |
| Display number of colours | 1.07 billion colours |
| Touchscreen | No |
| Colour depth | 8 bit |
| High Dynamic Range (HDR) supported | Yes |
| High Dynamic Range (HDR) technology | High Dynamic Range (HDR) 400 |
| Response time (MPRT) | 0.8 ms |

### Design

| Feature | Value |
|---|---|
| Screen shape | Flat |
| Product colour | Black |
| Panel mounting interface | 100 x 100 |
| Market positioning | Gaming |
| Frameless design | Yes |

### Ports & interfaces

| Feature | Value |
|---|---|
| HDMI ports quantity | 2 |
| DisplayPorts quantity | 1 |
| USB Type-C downstream ports quantity | 1 |
| Headphone out | Yes |
| Built-in USB hub | Yes |
| USB hub version | 3.2 Gen 1 (3.1 Gen 1) |
| USB upstream port type | USB Type-B |
| Number of upstream ports | 1 |
| USB Type-A downstream ports quantity | 4 |
| HDMI version | 2.1 |
| HDMI | Yes |
| Number of USB Type-B upstream ports quantity | 1 |
| DisplayPort out version | 1.4 |
| Number of downstream ports | 5 |

### Ergonomics

| Feature | Value |
|---|---|
| Swivel angle range | -45 - 45 |
| Cable management | Yes |
| Tilt adjustment | Yes |
| Cable lock slot type | Kensington |
| VESA mounting | Yes |
| Adjustable height (max) | 150 mm |

### Audio

| Feature | Value |
|---|---|
| Built-in speaker(s) | Yes |

### Performance

| Feature | Value |
|---|---|
| HDCP | Yes |
| DDC/CI | Yes |
| On Screen Display (OSD) | Yes |
| On Screen Display (OSD) languages | CZE, DEU, DUT, ENG, ESP, FRE, ITA, JPN, POL, RUS, UKR |
| Number of OSD languages | 11 |
| NVIDIA G-SYNC | Yes |
| AMD FreeSync | Yes |
| Flicker-free technology | Yes |
| Low Blue Light technology | Yes |
| NVIDIA G-SYNC type | G-SYNC Compatible |
| AMD FreeSync type | FreeSync Premium |

### Multimedia

| Feature | Value |
|---|---|
| RMS rated power | 4 W |
| Built-in camera | No |
| Number of speakers | 2 |

### Technical details

| Feature | Value |
|---|---|
| Energy efficiency class | F |
| Sustainability certificates | ErP |
| Compliance certificates | CE, EAC, PSE, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE |

### Other features

| Feature | Value |
|---|---|
| Headphone outputs | 1 |
| Maximum refresh rate | 288 Hz |
| Viewable size, vertical | 335.7 mm |
| Power cable length | 1.85 m |
| Headphone connectivity | 3.5 mm |
| Power supply type | Internal |
| Viewable size, horizontal | 596.7 mm |
| Cable lock slot | Yes |
| Height adjustment | Yes |
| Tilt angle range | -5 - 23 |
| Pivot | Yes |
| Quick start guide | Yes |
| Swivelling | Yes |
| Pivot angle | -90 - 90 |
| Weight (without stand) | 4000 g |
| Height (without stand) | 417 mm |

### Power

| Feature | Value |
|---|---|
| Energy efficiency class (SDR) | F |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 25.7 kWh |
| Energy consumption (HDR) per 1000 hours | 36.6 kWh |
| Power consumption (typical) | 26 W |
| Power consumption (off) | 0.3 W |
| Power consumption (standby) | 0.5 W |
| AC input frequency | 50/60 |
| AC input voltage | 100 - 240 |
| Energy efficiency scale | A to G |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight (with stand) | 5970 g |
| Width (with stand) | 614.5 mm |
| Height (with stand) | 567 mm |
| Depth (with stand) | 213 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 20 - 90 |
| Storage temperature (T-T) | -20 - 60 |
| Operating temperature (T-T) | 0 - 40 |
| Storage relative humidity (H-H) | 10 - 90 |

### Packaging content

| Feature | Value |
|---|---|
| HDMI cable length | 1.85 m |
| DisplayPort cable length | 1.85 m |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 9000 g |
| Package depth | 694 mm |
| Package height | 440 mm |
| Package width | 694 mm |

## FAQ

### How much does the iiyama G-MASTER GB2771UHSU-B1 27" 4K UHD monitor cost, and is it available for purchase?

The price is 308.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 161 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All IIYAMA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized IIYAMA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: display diagonal, display resolution, hd type, panel type, display technology, pixel pitch, contrast ratio (typical), display brightness (typical), screen shape, usb type-c downstream ports quantity, built-in usb hub, vesa mounting, built-in speaker(s), energy efficiency class, energy efficiency class (sdr), energy efficiency class (hdr), energy consumption (sdr) per 1000 hours, energy consumption (hdr) per 1000 hours, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for iiyama G-MASTER GB2771UHSU-B1 27" 4K UHD monitor?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11650126/66922669_large.webp