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header-product iiyama G-MASTER GB2791QSU-B1 27-inch Fast IPS Gaming Monitor, 2560 x 1440 QHD, 320Hz, Black
245.49 €

iiyama G-MASTER GB2791QSU-B1 27-inch Fast IPS Gaming Monitor, 2560 x 1440 QHD, 320Hz, Black

iiyama G-MASTER GB2791QSU-B1 27" QHD Gaming Monitor Photo 1
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Short description

The iiyama G-MASTER GB2791QSU-B1 is a 27-inch gaming monitor featuring a Fast IPS panel with a 2560 x 1440 QHD resolution. Designed for high-performance gaming, it offers a 320Hz refresh rate, 1000:1 contrast ratio, and 350 cd/m² brightness. The monitor includes built-in speakers, a USB hub, and an adjustable stand with VESA support, providing a versatile and immersive visual experience for competitive players.
Available at price 245.49 €: 1 pcs.
Total available for order: 105 pcs.
Warranty: 2 Years
SKU: 11678752
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Cost

1.89 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
20.07.2026 {{selectedOffer.officeDeliveryString}}
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23.07.2026 {{selectedOffer.courierDeliveryString}}
From 7.37 € (Weight: 8.40 kg)
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From 1.89 €
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Product information

Description

The iiyama G-MASTER GB2791QSU-B1 is a high-performance 27-inch gaming monitor engineered for competitive players who demand speed and precision. Featuring a Fast IPS panel with a sharp 2560 x 1440 QHD resolution, this display delivers vibrant colors and wide viewing angles. With an ultra-high 320Hz refresh rate and a rapid 0.6ms response time, it ensures fluid motion and minimal ghosting, providing a significant advantage in fast-paced gaming environments.

Advantages

The primary strength of this monitor lies in its exceptional motion clarity, driven by the combination of a 320Hz refresh rate and Fast IPS technology. This ensures that even the fastest action remains crisp and clear, reducing motion blur significantly. The inclusion of a Black Tuner allows users to adjust brightness and dark levels, revealing hidden details in shadowed areas of the game. Furthermore, the ergonomic stand offers extensive height adjustment, ensuring that users can maintain a comfortable posture during extended gaming sessions, while the integrated USB hub and built-in speakers add convenience to any desktop setup.

Suitable for

  • Competitive esports gaming
  • Fast-paced first-person shooters
  • Action and racing games
  • General productivity and multitasking

This monitor may not be the ideal choice for professional color-critical work such as high-end photo editing or print design, where specialized wide-gamut displays are typically required. Additionally, users with limited desk space may find the 27-inch footprint and the stand's depth to be more substantial than smaller, more compact monitor options.

Key specifications

  • Display diagonal: 27 inches
  • Resolution: 2560 x 1440 QHD
  • Panel type: Fast IPS
  • Refresh rate: 320Hz
  • Response time: 0.6ms MPRT
  • Brightness: 350 cd/m²
  • Contrast ratio: 1000:1
  • Connectivity: Built-in USB hub, DisplayPort, HDMI
  • Ergonomics: Height-adjustable stand, VESA mount compatible
  • Audio: Built-in speakers

To begin using the monitor, connect it to your PC using a high-speed DisplayPort or HDMI cable capable of supporting the high refresh rate. Once connected, navigate to your operating system's display settings to ensure the refresh rate is set to the maximum 320Hz. You can use the on-screen display menu to toggle the Black Tuner settings and customize the image profile to suit your specific gaming environment or ambient lighting conditions.

What to consider before purchase

  • Ensure your graphics card supports the high refresh rate and resolution via the available ports.
  • Check your desk dimensions to accommodate the 27-inch screen and stand.
  • Verify if your current setup requires VESA mounting for monitor arms.
For the best gaming experience, it is recommended to enable FreeSync Premium in the monitor settings and match it with a compatible graphics card to eliminate screen tearing and stuttering during gameplay.

Specifications

Display diagonal: iagonal of the visible part of the screen expressed in centimeters and inches.
27 "
Display resolution:
2560 x 1440
HD type:
Wide Quad HD
Panel type:
Fast IPS
Pixel pitch:
0.233 x 0.233
Contrast ratio (typical):
1000:1
Display brightness (typical):
350 cd/m²
Built-in USB hub:
Yes
VESA mounting:
Yes
Built-in speaker(s):
Yes
Energy efficiency class (SDR): Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.
F
Energy efficiency class (HDR): Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.
G
Energy consumption (SDR) per 1000 hours: Power consumption in switched-on state expressed in W.
23.5 kWh
Weight:
5.8 kg
Product colour:
Black
All features

Display

Display diagonal: iagonal of the visible part of the screen expressed in centimeters and inches.
27 "
HD type:
Wide Quad HD
Panel type:
Fast IPS
Display resolution:
2560 x 1440
Pixel pitch:
0.233 x 0.233
Contrast ratio (typical):
1000:1
Display brightness (typical):
350 cd/m²
Viewing angle, vertical:
178 °
Viewing angle, horizontal:
178 °
Horizontal scan range:
30 - 550
Display diagonal (metric):
68.5 cm
Contrast ratio (dynamic):
80000000:1
Native aspect ratio:
16:9
Display surface:
Matt
Display number of colours:
16.7 million colours
Colour depth:
8 bit
High Dynamic Range (HDR) supported:
Yes
High Dynamic Range (HDR) technology:
High Dynamic Range 10 (HDR10)
Response time (MPRT):
0.6 ms

Design

Product colour:
Black
Panel mounting interface:
100 x 100

Ports & interfaces

HDMI ports quantity:
2
DisplayPorts quantity:
1
Headphone out:
Yes
Built-in USB hub:
Yes
USB hub version:
3.2 Gen 1 (3.1 Gen 1)
Number of downstream ports:
4

Ergonomics

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

Built-in speaker(s):
Yes

Performance

HDCP:
Yes
AMD FreeSync:
Yes
Flicker-free technology:
Yes
Low Blue Light technology:
Yes

Multimedia

RMS rated power:
4 W
Number of speakers:
2

Technical details

Sustainability certificates:
ErP
Compliance certificates:
TÜV mark, CE, EAC, PSE, REACH, RoHS, UKCA, VCCI, WEEE

Other features

Maximum refresh rate:
320 Hz
Viewable size, vertical:
335.7 mm
Power cable length:
1.8 m
Power supply type:
Internal
Viewable size, horizontal:
596.7 mm
Packaging content:
quick start guide, safety guide
User controls:
picture adjust (contrast, brightness, OverDrive, HDR, Adaptive Sync, night mode, blue light reducer, Motion Blur Reducer, gamma), input select (input source, auto/ manual, DP, HDMI1, HDMI2), audio adjust (volume, mute), store user settings (user modes), colour settings (6-axis, colour temperature, user preset, black tuner), image adjust (i-Style Colour, X-Res Technology, sharpness, HDMI range, Direct Drive Mode, video mode adjust), language, OSD setup menu (OSD H. position, OSD V. position, OSD Time, Opening Logo, Power LED, DDC/ DI Control, USB charge), display information, reset (reset all)
Cable lock slot:
Yes
Height adjustment:
Yes
Control panel:
power switch, joystick, menu (center), up / signal select, down / shortcut, left / volume -, right / volume +
Pivot:
Yes
Swivelling:
Yes
Weight (without stand):
4000 g
Height (without stand):
313 mm

Power

Energy efficiency class (SDR): Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.
F
Energy efficiency class (HDR): Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.
G
Energy consumption (SDR) per 1000 hours: Power consumption in switched-on state expressed in W.
23.5 kWh
Power consumption (typical): Power consumption in switched-on state expressed in W.
24 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: Range of energy efficiency levels classifying devices from most to least energy-efficient.
A to G

Weight & dimensions

Weight (with stand):
5800 g
Weight:
5.8 kg
Height:
313 mm
Width:
612 mm
Width (with stand):
612 mm
Height (with stand):
313 mm

Packaging content

Cables included:
HDMI, AC, USB, DisplayPort
HDMI cable length:
1.8 m
DisplayPort cable length:
1.8 m

Packaging data

Package weight:
8400 g
Package depth:
465 mm
Package height:
140 mm
Package width:
690 mm
USB cable length:
1.8 m

Sustainability

Doesn't contain:
Lead

Reasons to buy

Ultra-Fast 320Hz Refresh Rate and 0.6ms MPRT

Experience unparalleled speed with a 320Hz refresh rate and a rapid 0.6ms MPRT response time. This combination ensures that every movement is rendered with perfect clarity, allowing you to make split-second decisions with confidence and precision.

Ultra-Fast 320Hz Refresh Rate and 0.6ms MPRT

NVIDIA G-SYNC Compatible Technology

Enjoy seamless, tear-free gaming with NVIDIA G-SYNC compatibility. By synchronizing your monitor's refresh rate with your GPU, you can eliminate stuttering and screen tearing for fluid, crystal-clear action during intense gameplay sessions (available via DisplayPort).

NVIDIA G-SYNC Compatible Technology

Advanced Black Tuner Functionality

Gain a competitive edge with the Black Tuner feature. Easily adjust brightness and dark levels to improve visibility in shadowed areas, ensuring you can spot enemies and hidden details before anyone else.

Advanced Black Tuner Functionality

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Stock data
Warehouse Stock Delivery to the store Store Price
WH155 1 20.07.2026 245.49 € Best price
EU2 5 Thursday Best delivery 301.49 €
EU85 6 20.07.2026 313.99 €
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WH109 15 03.08.2026 334.49 €
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Energy label

Energy label
GB2791QSU-B1
Model

Device manufacturer code

IIYAMA
Manufacturer

Device manufacturer

27 "
Display diagonal

iagonal of the visible part of the screen expressed in centimeters and inches.

F
Energy efficiency class (SDR)

Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.

G
Energy efficiency class (HDR)

Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.

23.5 kWh
Energy consumption (SDR) per 1000 hours

Power consumption in switched-on state expressed in W.

Customer reviews

Customer questions

FAQ

How much does the iiyama G-MASTER GB2791QSU-B1 27" QHD Gaming Monitor cost, and is it available for purchase?

The price is 245.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 105 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 20.07.2026 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can iiyama G-MASTER GB2791QSU-B1 27" QHD Gaming Monitor be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the iiyama G-MASTER GB2791QSU-B1 27" QHD Gaming Monitor online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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, pixel pitch, contrast ratio (typical), display brightness (typical), built-in usb hub, vesa mounting, built-in speaker(s), energy efficiency class (sdr), energy efficiency class (hdr), energy consumption (sdr) per 1000 hours, weight, 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 GB2791QSU-B1 27" QHD Gaming 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.
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