iiyama G-MASTER Red Eagle GB2771UHSU-B1 – LED monitor – gaming – 27″ – 3840 x 2160 4K @ 144 Hz – IPS – 450 cd/m² – 1500:1 – 0.8 ms – 2xHDMI, DisplayPort – speakers – black, matte

4.8 / 5 on Trustpilot · 3,500+ reviews
Condition New What does this mean? → Ships from Warehouse What does this mean? →
Only 4 left in stock Get it by Tuesday 9 June
SKU: WH3-12191651 Category:
€368.17

4 in stock

Or pay 3 monthly from €123.00 with Klarna humm
  • 12-month warranty On every device
  • Free shipping On orders over €100
  • 14-day returns No questions asked
  • Tested by experts 40-point inspection
Description

Your refurbished device

Refurbished products are up to 40% cheaper than new and a far more sustainable choice. Every device comes with our 12-month warranty and a 14-day return policy — no questions asked.

iiyama G-MASTER Red Eagle GB2771UHSU-B1 – LED monitor – gaming – 27″ – 3840 x 2160 4K @ 144 Hz – IPS – 450 cd/m² – 1500:1 – 0.8 ms – 2xHDMI, DisplayPort – speakers – black, matte

Experience the best of both worlds with the G-MASTER Red Eagle GB2771UHSU 27” 4K IPS monitor built for versatility. Enjoy high-definition detail with 4K resolution at 144Hz for smooth and immersive single-player adventures, then switch to an ultra-responsive 288Hz refresh rate at Full HD when it’s time to get competitive. With a fast 0.8ms MPRT (4K 144Hz) response time and NVIDIA G-SYNC Compatible technology, gameplay stays crisp and fluid, with no visible screen tearing artifacts or distractions. This monitor delivers 450cd/m² brightness and vibrant colour accuracy with it’s IPS panel, making it a suitable monitor for gaming and content creation, it is the perfect all-rounder you need for both immersive and competitive gaming.

Grading & condition explained

Every device we sell goes through a 40-point inspection by our in-house team in Mullingar. Worn batteries replaced, scratched screens renewed, faulty buttons fixed. Battery, display, camera, ports and speakers all tested.

Then we grade purely on cosmetics. Performance is identical across grades — the difference is how the device looks, not how it works. Every grade carries the same 12-month warranty.

New
Brand new in sealed packaging. Never used. Full original accessories and warranty.
Grade A+ — Pristine
Looks and feels new. Includes never-used returns, ex-demo units (briefly used in a shop), and factory-refurbished stock from the manufacturer. Indistinguishable from new in everyday use.
Grade A — Excellent
Refurbished and fully tested. Possible minor cosmetic marks, only noticeable on close inspection under bright light. Our most common grade and the best balance of price and condition.
Grade B — Good
Visible signs of use — scratches, nicks or wear on the casing. Cosmetic only, fully functional, biggest discount on refurbished stock.
Grade C — Fair
Heavy signs of use. Cosmetic only, fully functional. Our lowest price when available — ideal if budget matters more than appearance.

We’re straight with you on grading. If something’s a Grade B, we call it Grade B — we don’t soften the language. The grade is on every product page and the photos show the actual stock condition.

Where does this ship from?

Every unit we sell lives in one of two places before it gets to you. We tell you up-front so you can plan around it.

Mullingar Shop
Stock sitting in our shop in Mullingar, ready to grab and ship the same day you order.
Delivery: 1–2 working days anywhere in Ireland.
Store collection: Same day — usually within an hour of order confirmation. We’ll send a text when it’s ready.
Warehouse
Stocked at one of our warehouses. QA-tested in our Mullingar workshop before it ships.
Delivery: 2–3 working days anywhere in Ireland.
Store collection: 2–3 working days (we’ll text you the moment it’s ready in Mullingar).

Either way, every device gets a 40-point inspection in our Mullingar workshop before it goes out, and carries the same 12-month warranty.

Frequently asked questions

What does refurbished mean?

A refurbished device has been professionally tested, repaired where needed, and certified to work like new. It's not a "used" device — it's a renewed one.

What warranty do I get?

Every device comes with a 12-month warranty. If anything fails during that period, we replace or refund it.

What if I change my mind?

You have 14 days from delivery to return it for a full refund — no questions asked.

How long does shipping take?

Order before 3pm Mon-Fri for next-day delivery to most of Ireland. Free shipping on orders over €100.

Can I pay in instalments?

Yes — we offer Klarna and Humm, so you can split the cost into 3 monthly payments at checkout.

Customer reviews 3,500+ on Trustpilot

Key specs

Brand iiyama
Condition New
Frameless design Yes
Storage temperature (T-T) -20 - 60 °C
Storage relative humidity (H-H) 10 - 90%
Display resolution 3840 x 2160 pixels
Market positioning Gaming
On Screen Display (OSD) Yes
On Screen Display (OSD) languages Czech, German, English, Spanish, French, Italian, Japanese, Dutch, Polish, Russian, Ukrainian
Number of OSD languages 11

Display

Control panel Joystick, power / menu (center), up / signal select, down, left / i-Style colour, night mode, blue light reducer, right / volume
Display brightness (typical) 450 cd/m²
Display diagonal 27"
Display diagonal (metric) 68.6 cm
Display number of colours 1.07 billion colours
DisplayPort cable length 1.85 m
DisplayPort out version 1.4
DisplayPorts quantity 1
Display technology LED
Maximum refresh rate 144 Hz
Panel mounting interface 100 x 100 mm
Panel type IPS
Screen shape Flat
Touchscreen No

Connectivity

Built-in USB hub Yes
HDMI Yes
HDMI cable length 1.85 m
HDMI ports quantity 2
HDMI version 2.1
High Dynamic Range (HDR) supported Yes
Number of downstream ports 4
Number of upstream ports 1
Number of USB Type-B upstream ports quantity 1
USB cable length 1.5 m
USB hub version 3.2 Gen 1 (3.1 Gen 1)
USB Type-A downstream ports quantity 4
USB Type-C downstream ports quantity 1
USB upstream port type USB Type-B

Camera & sensors

Built-in camera No
Built-in speaker(s) Yes
Number of speakers 2

Physical & graphics

Adjustable height (max) 15 cm
Colour depth 8 bit
Depth 213 mm
Depth (with stand) 213 mm
Height (without stand) 417 mm
Height (with stand) 567 mm
Height adjustment Yes
Package depth 143 mm
Package height 440 mm
Package weight 9 kg
Package width 694 mm
Product colour Black
Weight 5.97 kg
Weight (without stand) 4 kg
Weight (with stand) 5.97 kg
Width 614.5 mm
Width (with stand) 614.5 mm

Other specs

AC input frequency 50/60 Hz
AC input voltage 100 - 240 V
AMD FreeSync Yes
AMD FreeSync type FreeSync Premium
Cable lock slot Yes
Cable lock slot type Kensington
Cable management Yes
Cables included AC, USB, HDMI, DisplayPort
Compliance certificates CE, EAC, PSE, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE
Contrast ratio (dynamic) 100000000:1
Contrast ratio (typical) 1500:1
DDC/CI Yes
Energy consumption (HDR) per 1000 hours 36.6 kWh
Energy consumption (SDR) per 1000 hours 25.7 kWh
Energy efficiency class (HDR) G
Energy efficiency class (SDR) F
Energy efficiency scale A to G
Flicker-free technology Yes
HDCP Yes
HD type 4K Ultra HD
Headphone connectivity 3.5 mm
Headphone out Yes
Headphone outputs 1
High Dynamic Range (HDR) technology High Dynamic Range (HDR) 400
Horizontal scan range 30 - 360 kHz
Low Blue Light technology Yes
ManProdNr GB2771UHSU-B1
Native aspect ratio 16:9
NVIDIA G-SYNC Yes
NVIDIA G-SYNC type G-SYNC Compatible
Operating relative humidity (H-H) 20 - 90%
Operating temperature (T-T) 0 - 40 °C
Packaging content quick start guide, safety guide
Pivot Yes
Pivot angle -90 - 90°
Pixel pitch 0.155 x 0.155 mm
Power cable length 1.85 m
Power consumption (off) 0.3 W
Power consumption (standby) 0.5 W
Power consumption (typical) 26 W
Power supply type Internal
Quick start guide Yes
Response time (MPRT) 0.8 ms
RMS rated power 4 W
Sustainability certificates ErP
Swivel angle range -45 - 45°
Swivelling Yes
Tilt adjustment Yes
Tilt angle range -5 - 23°
User controls picture adjust (contrast, brightness, overdrive, HDR, adaptive sync, adv. contrast, night mode, blue light reducer, motion blur red., gamma), input select (auto, manual / HDMI1, HDMI2, DP), audio adjust (volume, mute), store user setting (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, setup menu (OSD horizontal position, OSD vertical position, OSD rotate, OSD time, opening logo, power LED, DDCI/CI control, USB charge), setup menu (PIP/PBP, dual mode, DSC compression), display information, reset (reset all)
Vertical scan range 48 - 288 Hz
VESA mounting Yes
Viewable size, horizontal 59.7 cm
Viewable size, vertical 33.6 cm
Viewing angle, horizontal 178°
Viewing angle, vertical 178°
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Refurbished, properly

What 'refurbished' means at Creative IT

40-point inspection

Every device is tested across 40+ checkpoints: battery health, display, ports, speakers, cameras, performance.

Parts replaced as needed

Worn batteries, scratched screens, faulty buttons — all replaced before sale. No shortcuts.

Refurbished in Ireland

By our in-house team in Mullingar — not a faceless overseas warehouse you can't reach.

12-month warranty

Every device backed by us. If it fails within a year, we replace or refund — no quibbles.

Our grading system

New, A+, A, B or C — performance is always the same

Every device is graded on cosmetic condition only. Internally they all hit the same performance bar — the grade just reflects how it looks. Every grade carries the same 12-month warranty.

New

Sealed

  • Brand new, in original packaging
  • Never used or opened
  • Full manufacturer accessories
A+

Pristine

  • Looks and feels new
  • Ex-demo or factory refurbished
  • Indistinguishable from new
A

Excellent

  • Near-new condition
  • Minor marks only on close inspection
  • Our most common grade
B

Good

  • Visible signs of use
  • Cosmetic only, fully functional
  • Biggest discount on refurbished
C

Fair

  • Heavy signs of use
  • Cosmetic only, fully functional
  • Lowest price when available
3,500+ Trustpilot reviews

What customers say about Creative IT

Trustpilot
Your impact

Choosing refurbished, you're saving the planet too

Buying this device refurbished instead of new saves approximately:

  • 74kgCO₂ emissions
  • 200kgraw materials
  • 1,400Lwater
Estimates based on industry averages for refurbished consumer electronics. Source: ADEME / European Refurbishers Association.
iiyama G-MASTER Red Eagle GB2771UHSU-B1 - LED monitor - gaming - 27" - 3840 x 2160 4K @ 144 Hz - IPS - 450 cd/m² - 1500:1 - 0.8 ms - 2xHDMI, DisplayPort - speakers - black, matte €368.17
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