iiyama Monitor GB2791QSU-B1

2560 x 1440 pixels, 27"
Delivered between Tue, 7.4. and Wed, 8.4.
Only 3 pieces in stock at supplier
free shipping

Product details

The iiyama G-MASTER GB2791QSU-B1 is a state-of-the-art gaming monitor specifically designed for demanding gamers. With a screen diagonal of 27 inches and a WQHD resolution of 2560 x 1440 pixels, this monitor delivers impressive image quality and detail fidelity. The Fast IPS technology ensures vibrant colors and wide viewing angles, while the high refresh rate of 320 Hz and a response time of just 1 ms (MPRT) guarantee a smooth and responsive gaming experience. The monitor is G-SYNC compatible, minimizing screen tearing and stuttering, thereby optimizing performance in intense gaming scenes. With multiple connectivity options, including HDMI 2.1 and DisplayPort, as well as an integrated USB hub, the GB2791QSU-B1 is versatile and provides easy connections to various devices.

  • Fast IPS technology for vibrant colors and wide viewing angles
  • G-SYNC compatible to minimize screen tearing
  • Extremely high refresh rate of 320 Hz for smooth movements
  • Response time of just 1 ms (MPRT) for quick reactions in games
  • Integrated USB hub for easy connectivity with other devices.

Key specifications

Monitor type
Gaming Monitor
Display resolution
WQHD
Display technology
LED
Refresh rate
320 Hz
Monitor equipment
Integrated loudspeakersIntegrated USB hubSlot for Kensington lock
Video connections
DisplayPort (1x)HDMI (2x)
USB ports
USB-AUSB-C

General information

Item number
66263514
Manufacturer
iiyama
Category
Monitor
Manufacturer no.
GB2791QSU-B1
Release date
14.1.2026
Sales rank in Category Monitor
1340 of 3472
External links

Colour

Colour
Black
Exact colour description
Black

Display properties

Monitor type
Gaming Monitor
Display size (inches)
27"
Screen size (cm)
68.60 cm
Image resolution
2560 x 1440 pixels
Display resolution
WQHD
Pixel pitch
0.23 mm
Display
LCD
Display technology
LED
Panel
IPS
Panel technology
FAST IPS
Refresh rate
320 Hz
Aspect ratio
16:9
Screen surface
Anti-glare
Contrast ratio
1000:1
Reaction time MPRT
0.60 ms
Brightness
350 cd/m²
Colour depth
8 bits
Viewing angle (H)
178°
Viewing angle (V)
178°

Features + Functions

Monitor equipment
Integrated loudspeakersIntegrated USB hubSlot for Kensington lock
Connectivity
3.5 mm jackHDMIUSB
Touch
Without touch function
Sync-Technology
Adaptive SyncAMD Freesync Premium

Mounting + Ergonomics

Adjustability
Height-adjustablePivot functionPivotingTiltable
VESA wall mount
100 x 100 mm

Connections

Video connections
DisplayPort (1x)HDMI (2x)
USB ports
USB-AUSB-C
Audio Connections
Headphone output (1x)

Power supply

USB Type C Power supply
5 W
Power consumption
24 W
Power consumption (standby)
0.50 W
Power consumption (Off)
0.30 W
Energy consumption per year
23.50 kWh

Energy declaration

Energy efficiency class
F

Origin

Country of origin
ChinaJapan

Voluntary climate contribution

CO₂ emissions
16.1 kg
Climate contribution
CHF 0.38

Scope of delivery

Scope of delivery
DisplayPort cableGuide for quick startHDMI cablePower cordSafety noteUSB cable

Product dimensions

Width
612 mm
Length
313 mm
Height
403.50 mm
Weight
5.80 kg

30-day right of return
36 Months Warranty (Bring-in)
8 additional offers

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Monitor» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 2.ēlo
    0.3 %
  • 3.HP
    0.7 %
  • 3.iiyama
    0.7 %
  • 5.BenQ
    0.8 %
  • 5.Fujitsu
    0.8 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 2.Mobile Pixels
    2 days
  • 5.Dell
    3 days
  • 5.iiyama
    3 days
  • 5.LG
    3 days
  • 5.MSI
    3 days

Return rate

How often is a product of this brand in the «Monitor» category returned?

Source: Digitec Galaxus
  • 8.Lenovo
    2.7 %
  • 9.Dell
    2.8 %
  • 9.iiyama
    2.8 %
  • 11.AOC
    2.9 %
  • 12.Samsung
    3.2 %
Source: Digitec Galaxus