iiyama ProLite X4373UHSU-B2 computer monitor 109.2 cm (43") 3840 x 2160 pixels 4K Ultra HD LED Black

SKU
X4373UHSU-B2
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42.5", 108cm, VA LED, 16:9, 450 cd/m², 30 - 135kHz, 977.5 x 621.5 x 251mm, 14.7kg
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SKU X4373UHSU-B2
EAN 4948570126590
Manufacturer iiyama
Availability N
Product Family ProLite
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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.
Display
HDCPYes
Display brightness (typical)450 cd/m²
Screen shapeFlat
Display number of colours1.07 billion colours
Native aspect ratio16:9
Maximum refresh rate60 Hz
sRGB coverage (typical)100%
HD type4K Ultra HD
Display technologyLED
Contrast ratio (dynamic)80000000:1
Viewing angle, horizontal178°
Viewing angle, vertical178°
Pixel pitch0.245 x 0.245 mm
Horizontal scan range30 - 135 kHz
Viewable size, horizontal52.9 cm
Viewable size, vertical94.1 cm
Display resolution3840 x 2160 pixels
Response time3 ms
Display diagonal109.2 cm (43")
Contrast ratio (typical)4000:1
NTSC coverage (typical)85%
TouchscreenNo
High Dynamic Range (HDR) supportedYes
Panel typeVA
High Dynamic Range (HDR) technologyHigh Dynamic Range 10 (HDR10)
Display diagonal (metric)108 cm
Colour gamut standardNTSC, sRGB
Response time measurement typeGTG (Gray to Gray)
Audio
Built-in speaker(s)Yes
RMS rated power7 W
Performance
Built-in speaker(s)Yes
RMS rated power7 W
Built-in cameraNo
Low Blue Light technologyYes
Flicker-free technologyYes
Management features
On Screen Display (OSD)Yes
On Screen Display (OSD) languagesEnglish, German, French, Spanish, Italian, Portuguese, Russian, Japanese, Dutch, Polish, Ukrainian
Multimedia
Number of speakers2
Built-in speaker(s)Yes
RMS rated power7 W
Built-in cameraNo
Power
Power cable length18 m
Power supply typeInternal
AC input voltage100 - 240 V
AC input frequency50/60 Hz
Power consumption (standby)0.5 W
Power consumption (typical)41 W
Power consumption (off)0.5 W
Energy efficiency scaleA to G
Energy efficiency class (SDR)E
Energy efficiency class (HDR)G
Energy consumption (SDR) per 1000 hours41 kWh
Energy consumption (HDR) per 1000 hours79 kWh
Design
Market positioningBusiness
Product colourBlack
Camera
Built-in cameraNo
Ports & interfaces
Built-in USB hubYes
USB hub version3.2 Gen 1 (3.1 Gen 1)
USB upstream port typeUSB Type-A, USB Type-C
Headphone outYes
HDMI ports quantity2
DisplayPorts quantity1
HDCPYes
HDMIYes
HDMI version2.0
DisplayPort version1.2
Built-in KVM switchYes
Technical details
Cable lock slotYes
HDMIYes
Product colourBlack
Power supply typeInternal
Weight (with stand)14.7 kg
TouchscreenNo
Ergonomics
Wall mountableYes
VESA mountingYes
Cable lock slotYes
Panel mounting interface200 x 100 mm
Tilt angle range2 - 10°
On Screen Display (OSD)Yes
On Screen Display (OSD) languagesEnglish, German, French, Spanish, Italian, Portuguese, Russian, Japanese, Dutch, Polish, Ukrainian
Height adjustmentNo
Cable lock slot typeKensington
Cable managementYes
Tilt adjustmentYes
Weight & dimensions
Width (with stand)977.5 mm
Depth (with stand)251 mm
Height (with stand)621.5 mm
Weight (with stand)14.7 kg
Package width1071 mm
Package depth240 mm
Package height760 mm
Package weight19.3 kg
Packaging data
Package width1071 mm
Package depth240 mm
Package height760 mm
Package weight19.3 kg
Package typeBox
Power cable length18 m
Remote control includedYes
Cables includedPower, HDMI, USB, DisplayPort, USB Type-C
DisplayPort cable length1.8 m
HDMI cable length1.8 m
Remote control batteries includedYes
Packaging content
Power cable length18 m
Remote control includedYes
Cables includedPower, HDMI, USB, DisplayPort, USB Type-C
DisplayPort cable length1.8 m
HDMI cable length1.8 m
Remote control batteries includedYes
Other features
Remote control includedYes
HDMIYes
Energy efficiency scaleA to G
Power supply typeInternal
Power cable length18 m
TouchscreenNo
Package typeBox