43" large format desktop monitor with 4K resolution, giving you the power of four displays in one
Designed for professionals who need more screen space, the ProLite X4373UHSU offers a seamless solution for multitasking and multi-device workflows. The 43'' panel delivers rich colours, sharp 3840x2160 resolution and wide 178° viewing angles, with 450cd/m² brightness ensuring excellent visibility in any lighting. For added flexibility, the monitor supports dual mode, allowing you to work in 3840×2160 for detailed content creation and data-heavy applications, or switch to 1920×1080 at 120Hz for smoother motion when displaying dynamic content or live feeds.
The USB-C input with 95W Power Delivery, integrated KVM switch and four-port USB hub make it easy to connect, control and charge multiple devices through a single setup. Flicker-free technology and a blue light reducer help minimise eye strain during long sessions, while the included remote control offers instant access to key settings.
Ideal for content creation, financial dashboards or control environments, this all-in-one monitor maximises clarity, comfort and productivity.

Adapt your display to match your pace
Switch seamlessly between two optimised modes to suit the task at hand. Dual Mode empowers your workflow by offering crystal-clear 4K resolution for precise data work, or a responsive 120Hz Full HD setting for smooth motion during live feeds and dynamic content. One screen with two smart ways to stay productive, without compromise

Deeper blacks and richer detail with VA panel
The VA panel offers exceptional contrast and deep blacks, revealing every nuance between light and dark. Enjoy vivid, lifelike images with minimal light bleed and excellent color depth, especially in darker scenes. Whether watching movies, editing content, or gaming, benefit from consistent picture quality and wide viewing angles that bring every detail to life.

Easy multi-device control with KVM
Easily switch between multiple computers using one monitor, keyboard, and mouse, making multitasking smooth and efficient.

Built-in audio without extra clutter
Enjoy clear, pleasant sound for calls, videos, and music while keeping your desk free of extra speakers, thanks to the integrated audio.

Double the view, double efficiency
Watch two sources at once. Use Picture-in-Picture to overlay a second feed or Picture-by-Picture to split the screen side by side. Perfect for multitasking, comparing content, or staying in control.

Reduced eye strain & fatigue
Work, study or play longer without eye fatigue, thanks to flicker-free technology and reduced blue light emissions. These features help minimize eye strain and improve visual comfort, allowing you to stay focused and productive throughout the day.

Specification

Product
Product id	1010246
Brand	iiyama
Partnr	X4373UHSU-B2
EAN/UPC code	4948570126590
Warranty (months)	36 months
Display
Display diagonal	43 inch
Display resolution	3840 x 2160 Pixels
Native aspect ratio	16:9
Panel type	VA
Display brightness (typical)	450 cd/m²
Response time	3 ms
HD type	4K Ultra HD
Response time measurement type	GTG (Gray to Gray)
Display technology	LED
Screen shape	Flat screen
Contrast ratio (typical)	4000:1
Contrast ratio (dynamic)	80000000:1
Maximum refresh rate	60 Hz
Viewing angle, horizontal	178 °
Viewing angle, vertical	178 °
Display number of colours	1.07 billion colours
Display diagonal (metric)	108 cm
Pixel pitch	0.245 x 0.245 mm
Horizontal scan range	30 - 135 kHz
Viewable size, horizontal	529.42 mm
Viewable size, vertical	941.18 mm
High Dynamic Range (HDR) technology	High Dynamic Range 10 (HDR10)
High Dynamic Range (HDR) supported	Y
sRGB coverage (typical)	100 procent
NTSC coverage (typical)	85 procent
Colour gamut standard	NTSC, sRGB
Performance
Flicker-free technology	Y
Low Blue Light technology	Y
Multimedia
Built-in speaker(s)	Y
Built-in camera	N
Number of speakers	2
RMS rated power	7 W
Design
Market positioning	Business
Product colour	Black
Ports & interfaces
Built-in USB hub	Y
USB hub version	3.2 Gen 1 (3.1 Gen 1)
USB upstream port type	USB Type-A, USB Type-C
HDMI	Y
HDMI ports quantity	2
HDMI version	2.0
DisplayPorts quantity	1
DisplayPort version	1.2
Headphone out	Y
Built-in KVM switch	Y
HDCP	Y
Ergonomics
VESA mounting	Y
Panel mounting interface	200 x 100 mm
Cable lock slot	Y
Cable management	Y
Cable lock slot type	Kensington
Height adjustment	N
Wall mountable	Y
Tilt angle range	2 - 10 °
Tilt adjustment	Y
On Screen Display (OSD)	Y
On Screen Display (OSD) languages	ENG, DEU, FRE, ESP, ITA, POR, RUS, JPN, DUT, POL, UKR
Packaging data
Cables included	Power, HDMI, USB, DisplayPort, USB Type-C
Power cable length	18 m
DisplayPort cable length	1.8 m
HDMI cable length	1.8 m
Handheld remote control	Y
Remote control batteries included	Y
Package width	1071 mm
Package depth	240 mm
Package height	760 mm
Package weight	19300 g
Package type	Box
Power
Energy efficiency class (SDR)	E
Energy consumption (SDR) per 1000 hours	41 kWu
Power consumption (typical)	41 W
Energy efficiency class (HDR)	G
Power consumption (standby)	0.5 W
Energy consumption (HDR) per 1000 hours	79 kWu
Power consumption (off)	0.5 W
AC input voltage	100 - 240 V
AC input frequency	50/60 Hz
Energy efficiency scale	A to G
Weight & dimensions
Width (with stand)	977.5 mm
Depth (with stand)	251 mm
Height (with stand)	621.5 mm
Weight (with stand)	14700 g
Other features
Power supply type	Internal
Touchscreen	N