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Before you believe a bad review about us

We would like to respond openly to every negative review about us. Many are posted anonymously, so we cannot reach those customers directly. This open letter is our reply, and we would be grateful if you took a moment to read it.

But here is what a one-star review will never tell you:

  • We import from 70+ official distributors. That is why you pay far less than local retail — and why delivery takes longer. We publish the date before you pay, never after.
  • You can pay only when your goods land in Johannesburg. Pay on Arrival, no full payment up front. Ask yourself what scammer offers that.
  • Nobody has ever lost money with us. You get the product, or you get a refund. There is no third option, and there never has been.
  • We are part of the ITwork group — ten years trading in Europe, nine stores, thousands of positive reviews.
  • Johannesburg and Cape Town stores open this year — real shelves, real stock, walk in and buy the same day.

We are not satisfied with our review scores, and we are not going to fix them by hiding anything. We are fixing them by being faster, clearer and easier to reach than any reason to complain.

Read the full letter — photos and video of real shipments, and a straight answer to every accusation.

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

iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
36 mo.
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
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R22,591
+R46 Reward
Step into gaming with the G-Master G4380UHSU. Its 43″ screen and UHD resolution (3840×2160) deliver sharp, detailed visuals, ideal for gamers seeking a clear, expansive view. Equipped with a fast 0.3ms MPRT response time and a 144Hz refresh rate, it ensures smooth, responsive gameplay with minimal m... Read More
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Stock 1 Code 126307 Brand IIYAMA Model G4380UHSU-B2 Warranty 3 Years

Shipping & Returns

Estimated delivery Thursday, October 1
You will be kept updated through our detailed tracking system
Payment options
EFTPayFastBank CardSnapScanZapperGoogle PayApple PayMobicredMoreTymePay on Arrival
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Step into gaming with the G-Master G4380UHSU. Its 43″ screen and UHD resolution (3840×2160) deliver sharp, detailed visuals, ideal for gamers seeking a clear, expansive view. Equipped with a fast 0.3ms MPRT response time and a 144Hz refresh rate, it ensures smooth, responsive gameplay with minimal motion blur or ghosting. The VA panel provides strong contrast and deep blacks, while the Black Tuner feature enhances visibility in darker areas of the screen - helping you spot opponents and stay in control. Whether you’re competing in fast-paced titles or exploring richly detailed open worlds, this monitor combines image quality and speed to match your setup.

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!
Key Highlights
  • 108 cm (42.5") LED VA
  • 4K Ultra HD 3840 x 2160 pixels 16:9
  • 144 Hz 550 cd/m² 4000:1
  • Flicker-free technology
  • F 47.8 kWh 89 W
Specifications
AC input frequency
50/60 Hz
AC input voltage
100 - 240 V
AMD FreeSync refresh rate range
48 - 120 Hz
Built-in camera
No
Built-in speaker(s)
Yes
Built-in USB hub
Yes
Cable lock slot
Yes
Cable lock slot type
Kensington
Cable management
Yes
Cables included
AC, USB, HDMI, DisplayPort
Colour depth
10 bit
Compliance certificates
CE, EAC, PSE, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE
Contrast ratio (dynamic)
80000000:1
Contrast ratio (typical)
4000:1
Control panel
Power Indicator, Remote Sensor, Input Select Button, +/Volume, -/Shortcut Button, Menu, Power
DDC/CI
Yes
Depth
251 mm
Depth (with stand)
251 mm
Display brightness (typical)
550 cd/m²
Display diagonal
108 cm (42.5")
Display diagonal (metric)
108 cm
Display number of colours
1.07 billion colours
Display resolution
3840 x 2160 pixels
Display surface
Matt
Display technology
LED
DisplayPort cable length
1.8 m
DisplayPort version
1.4
DisplayPorts quantity
2
Energy consumption (HDR) per 1000 hours
84.6 kWh
Energy consumption (SDR) per 1000 hours
47.8 kWh
Energy efficiency class (HDR)
G
Energy efficiency class (SDR)
F
Energy efficiency scale
A to G
Feet colour
Black
Flicker-free technology
Yes
Harmonized System (HS) code
85285210
Haze rate
2%
HD type
4K Ultra HD
HDCP
Yes
HDMI
Yes
HDMI cable length
1.8 m
HDMI ports quantity
2
HDMI version
2.1
Headphone connectivity
3.5 mm
Headphone out
Yes
Headphone outputs
1
Height
621.5 mm
Height (with stand)
621.5 mm
Height adjustment
No
High Dynamic Range (HDR) supported
Yes
High Dynamic Range (HDR) technology
High Dynamic Range (HDR) 400
Horizontal scan range
30 - 335 kHz
Low Blue Light technology
Yes
Market positioning
Gaming
Maximum refresh rate
144 Hz
Native aspect ratio
16:9
NTSC coverage (typical)
85%
Number of downstream ports
4
Number of OSD languages
11
Number of speakers
2
Number of upstream ports
1
Number of USB Type-C upstream ports quantity
1
NVIDIA G-SYNC
No
On Screen Display (OSD)
Yes
On Screen Display (OSD) languages
Czech, German, English, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian
Operating relative humidity (H-H)
10 - 80%
Operating temperature (T-T)
5 - 35 °C
Package depth
240 mm
Package height
760 mm
Package weight
20 kg
Package width
1071 mm
Packaging content
quick start guide, safety guide
Panel mounting interface
200 x 100 mm
Panel type
VA
Pixel pitch
0.245 x 0.245 mm
Power cable length
1.8 m
Power consumption (off)
0.3 W
Power consumption (standby)
0.5 W
Power consumption (typical)
89 W
Power supply type
Internal
Product colour
Black
Quick start guide
Yes
Remote control batteries included
Yes
Remote control included
Yes
Response time (MPRT)
0.3 ms
RMS rated power
14 W
Screen shape
Flat
Stand included
Yes
Storage relative humidity (H-H)
5 - 85%
Storage temperature (T-T)
-20 - 60 °C
Sustainability certificates
ErP
Tilt adjustment
Yes
Tilt angle range
-2 - 10°
Touchscreen
No
USB cable length
1.8 m
USB hub version
3.2 Gen 1 (3.1 Gen 1)
USB Type-A downstream ports quantity
2
USB upstream port type
USB Type-C
User controls
picture adjust (contrast, brightness, OD, HDR, Adaptive Sync, ACR, night mode, blue light reducer, motion blue reducer, gamma), input select (input source), 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, setup menu (OSD h. position, OSD v. position, OSD time, logo opening, power LED, DDC/CI control, USB charge, HDMI 2.1, DSC compression), display information, reset
VESA Adaptive Sync support
Yes
VESA mounting
Yes
Viewable size, horizontal
94.1 cm
Viewable size, vertical
52.9 cm
Viewing angle, horizontal
178°
Viewing angle, vertical
178°
Weight
14.8 kg
Weight (with stand)
14.8 kg
Weight (without stand)
13 kg
Width
977.5 mm
Width (with stand)
977.5 mm

Document

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Manual

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Energy label

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Price history over the last 6 months
iiyama G-MASTER G4380UHSU-B2 computer monitor 108 cm (42.5 inch) 3840 x 2160 pixels 4K Ultra HD LED Black
Current
R22,591
Lowest
R9,759
Highest
R23,809
Change 24H
-R646   -3%
Week
+R12,817   +131%
Month
+R10,971   +94%

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