iiyama G-MASTER G2771HSU-B1 27″ 240Hz Monitor

27 inch · 1920 x 1080 · 240 Hz · Fast IPS

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Screen size 27 inch
Resolution 1920 x 1080
Refresh rate 240 Hz
Panel Fast IPS

iiyama G-MASTER G2771HSU-B1 27″ 240Hz Monitor is a 27-inch monitor with 1920 x 1080 resolution, a 240 Hz refresh rate and Fast IPS panel. The high refresh rate makes fast games look smoother. It came out in 2025.

Released: 2025-10-07

Specifications

Key specs

Screen size: 27 inch
Resolution: 1920 x 1080
Refresh rate: 240 Hz
Panel: Fast IPS
Released: 2025-10-07
Part number: G2771HSU-B1
EAN / UPC: 4948570126453

Display

Display diagonal: 68.6 cm (27")
Display resolution: 1920 x 1080 pixels
HD type: Full HD
Native aspect ratio: 16:9
Panel type: Fast IPS
Display brightness (typical): 350 cd/m²
Response time (MPRT): 0.4 ms
Screen shape: Flat
Contrast ratio (typical): 1000:1
Contrast ratio (dynamic): 80000000:1
Maximum refresh rate: 240 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 16.7 million colours
Pixel pitch: 0.311 x 0.311 mm
Horizontal scan range: 30 - 285 kHz
Vertical scan range: 48 - 240 Hz
Viewable size, vertical: 33.6 cm
Viewable size diagonal: 59.8 cm
Display diagonal (metric): 68.6 cm
High Dynamic Range (HDR) supported: Yes
High Dynamic Range (HDR) technology: High Dynamic Range 10 (HDR10)
DDC/CI: Yes
Haze rate: 25%
Colour depth: 8 bit

Performance

NVIDIA G-SYNC: Yes
NVIDIA G-SYNC type: G-SYNC Compatible
AMD FreeSync: Yes
VESA Adaptive Sync support: Yes
Flicker-free technology: Yes
Low Blue Light technology: Yes

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Multimedia

Number of speakers: 2
RMS rated power: 4 W
Built-in speaker(s): Yes

Design

Market positioning: Gaming
Product colour: Black

Ports & interfaces

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
Number of downstream ports: 2
Number of USB Type-B upstream ports quantity: 1
USB Type-A downstream ports quantity: 1
USB Type-C downstream ports quantity: 1
HDMI: Yes
HDMI ports quantity: 2
HDMI version: 2.0
DisplayPorts quantity: 1
DisplayPort version: 1.2
Headphone out: Yes
Headphone outputs: 1
Headphone connectivity: 3.5 mm
HDCP: Yes

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Cable management: Yes
Cable lock slot: Yes
Cable lock slot type: Kensington
Tilt adjustment: Yes
Tilt angle range: -3.5 - 21.5°
On Screen Display (OSD): Yes
On Screen Display (OSD) languages: Czech, German, English, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian
Number of OSD languages: 10

Power

Energy efficiency class (SDR): E
Energy efficiency class (HDR): G
Energy consumption (SDR) per 1000 hours: 18.6 kWh
Energy consumption (HDR) per 1000 hours: 29 kWh
Power consumption (typical): 19 W
Power consumption (standby): 0.3 W
Power consumption (off): 0.3 W
AC input voltage: 100 - 240 V
AC input frequency: 50/60 Hz
Input current: 1.5 A
Power supply type: Internal
Energy efficiency scale: A to G

Operational conditions

Operating temperature (T-T): 5 - 35 °C
Storage temperature (T-T): -20 - 60 °C
Operating relative humidity (H-H): 10 - 80%
Storage relative humidity (H-H): 10 - 90%

Weight & dimensions

Width (with stand): 612 mm
Depth (with stand): 192.5 mm
Height (with stand): 444.5 mm
Weight (with stand): 4.2 kg
Width (without stand): 612 mm
Depth (without stand): 63.5 mm
Height (without stand): 357 mm
Weight (without stand): 3.8 kg

Other features

Weight: 4.2 kg
Height: 444.5 mm
Width: 612 mm
Depth: 192.5 mm
Control panel: power switch, joystick, menu (center), up / signal select, down / shortcut, left / volume -, right / volume +
Compliance certificates: CE, EAC, PSE, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE
Certification: CE, TÜV-Bauart, EAC, PSE, RoHS support, ErP, WEEE, VCCI, REACH, UKCA

Technical details

Native refresh rate: 60 Hz

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About this product

Gain the competitive edge you need to unlock your full gaming potential with the 27’’ G2771HSU monitor with FHD (1920x1080) resolution. Featuring an ultra-fast 0.4ms MPRT and a 240Hz refresh rate, this monitor ensures smooth gameplay. Compatible with NVIDIA G-SYNC so you can make split second decisions and forget about ghosting effects or smearing issues. The ability to adjust brightness and the dark shades with the Black Tuner delivers greater viewing performance in shadowed areas and the IPS panel technology guarantees superb image quality.

User manual (PDF) · Datasheet (PDF)

G2771HSU-B1 vs similar monitors

	iiyama G-MASTER G2771HSU-B1 27″ 240Hz Monitor	AOC G3 25G3Z/69 25″ 240Hz Monitor	AOC G4 27G4ZR/69 27″ 260Hz Monitor	AOC G4 27G4ZREP 27″ 260Hz Monitor
Screen size	27 inch	25 inch	27 inch	27 inch
Resolution	1920 x 1080	1920 x 1080	1920 x 1080	1920 x 1080
Refresh rate	240 Hz	240 Hz	260 Hz	260 Hz
Panel	Fast IPS	Fast IPS	Fast IPS	Fast IPS
Released	2025	2026	2026	2026