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![iiyama 42.5" - ProLite X4373UHSU-B2 4K PC monitor – 3840 x 2160 pixels – 3 ms (grey to grey) – 16:9 – VA panel – HDMI/DisplayPort/USB-C – USB hub – Speakers – KVM – Black](https://media.ldlc.com/r1600/ld/products/00/06/31/15/LD0006311522.jpg "iiyama 42.5" - ProLite X4373UHSU-B2 4K PC monitor – 3840 x 2160 pixels – 3 ms (grey to grey) – 16:9 – VA panel – HDMI/DisplayPort/USB-C – USB hub – Speakers – KVM – Black")
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iiyama 42.5" - ProLite X4373UHSU-B2
4K PC monitor – 3840 x 2160 pixels – 3 ms (grey to grey) – 16:9 – VA panel – HDMI/DisplayPort/USB-C – USB hub – Speakers – KVM – Black
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Large iiyama screen with Dual Mode 4K/FHD 120 Hz
The iiyama ProLite X4373UHSU-B2 monitor is a 43" Ultra HD 4K display designed for demanding professionals who want to maximise their display area and productivity. With its high-definition VA panel, it offers a sharp image, rich colours and optimal readability, even in bright lighting conditions. Its advanced multitasking features, such as Dual Mode 4K/Full HD 120 Hz, integrated KVM and USB-C with Power Delivery up to 95 W, simplify connection and multi-device use.
Large screen with Dual Mode 4K/FHD 120 Hz
With a resolution of 3840 × 2160 pixels, this large 43" screen gives you the equivalent of multiple frameless screens, perfect for displaying large spreadsheets, dashboards or multiple applications side by side. Dual Mode allows you to switch between native 4K resolution for detailed tasks and a smoother 1920 x 1080 at 120 Hz mode for dynamic content or video streams. The VA panel also ensures wide viewing angles up to 178° and a brightness of 450 cd/m², ensuring high viewing comfort in a variety of lighting conditions.
Practical features
This model includes a USB-C port with 95 W Power Delivery, allowing you to power and display a laptop simultaneously via a single cable, reducing clutter. The integrated KVM switch allows you to control multiple computers with a single keyboard and mouse, simplifying multi-PC setups. A four-port USB hub, Flicker-Free technology and blue light reduction improve visual comfort during long sessions.
Key features:
- 43" Ultra HD (3840 x 2160) display for an extended workspace
- Dual Mode with native 4K or Full HD at 120Hz for smooth visuals
- VA panel with wide 178° viewing angles and rich contrast
- USB-C with 95 W Power Delivery for simplified connection and charging
- Integrated KVM switch to control multiple PCs with a single keyboard/mouse set
- 4-port USB hub for additional peripherals
- Flicker-Free technology and blue light reduction for eye comfort
- Integrated speakers and included remote control for convenient control
Select your criteria
General information |
Product name |
iiyama 42.5" - ProLite X4373UHSU-B2 |
Brand |
iiyama | |
Model |
X4373UHSU-B2 | |
Display |
Screen size |
42.5 inches |
Screen format |
16:9 | |
Panel type |
VA (MVA, PVA) display | |
Max resolution |
3840 x 2160 pixels | |
High definition |
4K | |
Dot Pitch |
0.245 mm | |
Brightness |
450 cd/m² | |
Contrast |
4000 /1 | |
Response time |
3 ms | |
Angle of vision (horizontal) |
178 Degree(s) | |
Angle of vision (vertical) |
178 Degree(s) | |
Matte/anti-glare panel |
No | |
HDR (High Dynamique Range) |
Yes | |
HDR standards |
HDR10 | |
NVIDIA G-SYNC |
No | |
NVIDIA Reflex |
No | |
Adaptive-Sync |
No | |
AMD FreeSync |
No | |
Flicker-Free |
Yes | |
Anti blue light |
Yes | |
Screen |
Screen type |
LED |
Range |
IIyama ProLite | |
Widescreen |
Yes | |
Curved screen |
No | |
Borderless |
No | |
Touch screen |
No | |
Max vertical frequency |
60 Hz | |
Type of activities |
Office | |
| Multimedia | ||
Ergonomics |
Portable |
No |
Pivot |
No | |
Height adjustable stand |
No | |
Removable stand |
Yes | |
VESA mount |
200 x 100mm | |
Back tilt angle (top) |
10 Degree(s) | |
Forward tilt angle (bottom) |
2 Degree(s) | |
Articulating arm |
No | |
Connectivity |
Video inputs |
1 X USB Type C Female |
| 2 X HDMI Female | ||
| 1 X DisplayPort Female | ||
HDMI standard |
1 X HDMI 2.0 | |
DisplayPort standard |
DisplayPort 1.2 | |
Audio outputs |
1 X Headphone (3.5mm Jack Female) | |
Additional connector(s) |
2 X USB 3.0 Type C | |
| 2 X USB 3.0 | ||
Dock USB-C |
No | |
Multimedia |
Built-in speakers |
Yes |
Sound power |
2 X 7 W | |
Webcam |
No | |
TV tuner |
No | |
Physical characteristics |
Color |
Black |
Width |
977.5 mm | |
Height |
621.5 mm | |
Depth |
251 mm | |
Height (without stand) |
567.5 mm | |
Depth (without stand) |
58 mm | |
Weight |
14.7 kg | |
Multi-monitor bundle |
No | |
Power supply |
Energy class |
E |
Consumption |
41 kWh/1000h | |
Standby consumption |
0.5 W | |
Internal power supply |
Yes | |
Specificities |
PS5 optimized |
No |
Xbox Series optimized |
No | |
Warranties |
Commercial warranty |
Seller 2 years
|
Legal warranty |
See terms & conditions
|
|
Safety Information |
Responsible person |
Iiyama Corporation |
Postal address |
Wijkermeerstraat 8, 2131 HA Hoofddorp, The Netherlands | |
Electronic Address |
reg@iiyama.com |
See all iiyama products
Product referenced on 16 Jan 2026
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