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ShopMonitorsiiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black
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iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black

£481.52

£577.82 inc. VAT

Out of Stock(0)MPN: G4380UHSU-B2
🚚 Next-day delivery £4.95
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Key Features

iiyama G-MASTER G4380UHSU-B2
LED monitor
43" (42.5" viewable)
3840 x 2160 4K UHD (2160p) @ 144 Hz
VA
550 cd/m�
4000:1
0.4 ms

Product Overview

AI-generated summary

The iiyama G-MASTER G4380UHSU-B2 at £491.89 ex-VAT is one of those “good, sensible bargains” if you actually want a big-screen gaming/work hybrid without paying for premium brands. At this size, the appeal is pretty simple: you get a lot of screen real estate for spreadsheets, dashboards, and side-by-side documents, and the 4K resolution helps text stay usable instead of turning into a blurry mess. iiyama’s strength is typically that you get solid performance and a straightforward feature set without the marketing fluff.

That said, I wouldn’t buy it if you sit close and expect it to feel like a desktop monitor—40+ inches is a viewing-distance commitment. Also, if you’re sensitive to build/stand stability (wobble with desk movement, weight management, etc.), it’s worth checking reviews in person or confirming VESA/arm compatibility, because these large panels can be awkward to place properly. Overall: it’s a great choice for a team member who needs “one screen to do everything” (gaming, analysis, content work) and has the desk space—less ideal if your priority is a tight, compact workstation setup or you’re chasing the most premium motion/colour handling at any cost.

Why This Product

Tear-free visuals, seamless gameplay

Adaptive Sync keeps your graphics perfectly in sync with your monitor’s refresh rate, eliminating screen tearing and stuttering for a smoother, more immersive gaming experience.

144Hz & 0.3ms MPRT for ultra-fast gameplay

Enjoy fluid motion and instant response with a 144Hz refresh rate and lightning-fast 0.3ms MPRT, reducing blur and latency for precision play in every moment.

4K clarity for next-level immersion

Ultra HD resolution delivers crystal-clear visuals and stunning detail, bringing your games to life with incredible sharpness and realism. Whether you're exploring open worlds or battling online!

Stay connected & play uninterrupted

With four high-speed USB ports, you can easily connect your peripherals, charge devices, and keep your setup clean. No need to reach for your PC mid-game!

Specifications

Display

Display diagonal42.5 "
Display resolution3840 x 2160 pixels
HD type4K Ultra HD
Native aspect ratio16:9
Display technologyLED

Performance

NVIDIA G-SYNCN
AMD FreeSync refresh rate range48 - 120 Hz
VESA Adaptive Sync supportY
Flicker-free technologyY
Low Blue Light technologyY

Multimedia

Number of speakers2
RMS rated power14 W
Built-in speaker(s)Y
Built-in cameraN

Design

Market positioningGaming
Product colourBlack
Feet colourBlack

Ports & interfaces

Built-in USB hubY
USB hub version3.2 Gen 1 (3.1 Gen 1)
USB upstream port typeUSB Type-C
Number of upstream ports1
Number of downstream ports4

Ergonomics

VESA mountingY
Panel mounting interface200 x 100 mm
Cable managementY
Cable lock slotY
Cable lock slot typeKensington

Power

Energy efficiency class (SDR)F
Energy efficiency class (HDR)G
Energy consumption (SDR) per 1000 hours48 kWh
Energy consumption (HDR) per 1000 hours85 kWh
Power consumption (typical)89 W

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)5 - 85 %

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