Overview



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.




At-a-glance



  • Easily switch between multiple computers using one monitor, keyboard, and mouse, making multitasking smooth and efficient.

  • Enjoy clear, pleasant sound for calls, videos, and music while keeping your desk free of extra speakers, thanks to the integrated audio.

  • 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

  • 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.

  • 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.

  • 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.




Reasons to buy


  • Easily switch between multiple computers using one monitor, keyboard, and mouse, making multitasking smooth and efficient.
  • Enjoy clear, pleasant sound for calls, videos, and music while keeping your desk free of extra speakers, thanks to the integrated audio.
  • 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
  • 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.
  • 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.
  • 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


Technical Description: iiyama ProLite X4373UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black

Design
Product colour:
Black
Market positioning:
Business

Display
NTSC coverage (typical):
85%
sRGB coverage (typical):
100%
Colour gamut standard:
NTSC, sRGB
Colour depth:
10 bit
High Dynamic Range (HDR) technology:
High Dynamic Range 10 (HDR10)
High Dynamic Range (HDR) supported:
Yes
Display diagonal (metric):This is the size of the display screen, measured diagonally.
108 cm
Viewable size, vertical:
52.9 cm
Viewable size, horizontal:The viewable size is often somewhat smaller than the actual size of a monitor, because there is a border around the image.
94.1 cm
Horizontal scan range:
30 - 135 kHz
Pixel pitch:This is the parameter of a picture tube, which specifies the shortest distance between two dots of the same colour. The principle is: the smaller the dot pitch, the better sharpness of image.
0.245 x 0.245 mm
Display number of colours:
1.07 billion colours
Viewing angle, vertical:Maximum vertical angle at which a display can be viewed with acceptable visual performance.
178°
Viewing angle, horizontal:Maximum horizontal angle at which a display can be viewed with acceptable visual performance.
178°
Maximum refresh rate:
60 Hz
Contrast ratio (dynamic):A property of a display system, defined as the ratio of the luminance of the brightest color (white) to that of the darkest color (black) that the system is capable of producing.
80000000:1
Contrast ratio (typical):The difference in light intensity between the brightest white and the darkest black.
4000:1
Screen shape:
Flat
Response time measurement type:
GTG (Gray to Gray)
Response time:The response time is the time difference between the moment that a source (for example a video card) sends a signal and that equipment (for example a monitor) receives or display the signal. (Used abbreviations: R/F = Rise and Fall.)
3 ms
Display brightness (typical):
450 cd/m²
Panel type:
VA
HD type:Type of supported High Definition (e.g. Full HD, 4K Ultra HD).
4K Ultra HD
Touchscreen:A screen of a laptop, smartphone, etc., that responds to touch so you can control the interface using your fingers.
No
Display technology:The technology used in the display e.g. plasma, LED.
LED
Native aspect ratio:The aspect ratio is the ratio of the width of an image to its height. The native aspect ratio is the one which the projector/display is particularly designed for. Images shown in native aspect ratio will utilize the entire resolution of the display and achieve maximum brightness. Images shown in other than native aspect ratio will always have less resolution and less brightness than images shown in native aspect ratio.
16:9
Display resolution:The number of distinct pixels in each dimension that can be displayed. It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels. The higher the number of pixels, the sharper the image.
3840 x 2160 pixels
Display diagonal:Size of the display for this product, measured diagonally, usually in inches.
108 cm (42.5")

Ergonomics
On Screen Display (OSD) languages:
German, English, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, Ukrainian
On Screen Display (OSD):
Yes
Tilt angle range:
10 - 2°
Tilt adjustment:The tilt, which means the angle at which the device is pointing (up or down), can be changed.
Yes
Height adjustment:The part of the device that can be adjusted to change the height.
No
Cable lock slot type:
Kensington
Cable lock slot:Holes on the edge of devices through which a cable lock can be passed, so the device can be locked to a desk etc.
Yes
Cable management:Description of improved cable management
Yes
Wall mountable:The product can be mounted on (attached to ) a wall.
Yes
Panel mounting interface:
200 x 100 mm
VESA mounting:
Yes

Multimedia
Built-in camera:The product has an integrated camera.
No
RMS rated power:RMS (Root mean square) is a measure of the continuous power required by a device, in particular audio amplfiers and loudspeakers.
14 W
Number of speakers:The quantity of speakers included in/with the product.
2
Built-in speaker(s):The device contains speaker(s) to produce sound.
Yes

Other features
Control panel:Description of the control panel of the product; including the available buttons; and the function of each button
Input Select, +/Volume, -/Shortcut, Menu, Power
Compliance certificates:
CE, EAC, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE
Depth:The distance from the front to the back of something.
251 mm
Height:The measurement of the product from head to foot or from base to top.
621.5 mm
Packaging content:
quick start guide, safety guide
Weight:Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
14.7 kg
Width:The measurement or extent of something from side to side.
977.5 mm

Packaging content
Remote control batteries included:
Yes
Power cable length:
1.8 m
HDMI cable length:
1.8 m
DisplayPort cable length:
1.8 m
Remote control included:
Yes
Cables included:
AC, USB, HDMI, DisplayPort, USB Type-C

Packaging data
USB cable length:
1.8 m
Package type:The type of product package e.g. box.
Box
Package weight:Weight of the packaged product.
19.3 kg
Package height:The distance from the top to the bottom of the packaging.
760 mm
Package depth:The distance from the front to the back of the packaging.
240 mm
Package width:The distance from one side of the packaging to the other.
1071 mm

Performance
Low Blue Light technology:
Yes
Flicker-free technology:
Yes

Ports & interfaces
HDCP:High-bandwidth Digital Content Protection (HDCP) is a form of digital copy protection to prevent copying of digital audio and video content as it travels across connections.
Yes
Built-in KVM switch:
Yes
Headphone out:The socket for connecting headphones to the device.
Yes
DisplayPort version:
1.2
DisplayPorts quantity:Number of DisplayPorts. A DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio, USB, and other forms of data.
1
HDMI version:
2.0
HDMI ports quantity:The number of sockets (ports) for HDMI connections. HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
2
HDMI:HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
Yes
USB Power Delivery up to:
95 W
USB Power Delivery (USB PD):
Yes
USB Type-C DisplayPort Alternate Mode:
Yes
Number of downstream ports:
4
USB hub version:
3.2 Gen 1 (3.1 Gen 1)
Built-in USB hub:
Yes

Power
Energy efficiency scale:
A to G
Power supply type:The type of power supply which this product uses.
Internal
AC input frequency:
50/60 Hz
AC input voltage:The voltage of the AC electricity that is inpitted into the product.
100 - 240 V
Power consumption (off):
0.3 W
Power consumption (standby):The amount of electricity that is consumed when the product is on standby.
0.5 W
Power consumption (typical):Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
41 W
Energy consumption (HDR) per 1000 hours:
79.1 kWh
Energy consumption (SDR) per 1000 hours:
40.9 kWh
Energy efficiency class (HDR):
G
Energy efficiency class (SDR):
E

Sustainability
Sustainability certificates:
ErP

Weight & dimensions
Weight (with stand):
14.7 kg
Height (with stand):
621.5 mm
Depth (with stand):
251 mm
Width (with stand):
977.5 mm


Product details


X4373UHSU-B2 iiyama 4948570126590

iiyama ProLite X4373UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black

£451.64 and In stock

SKUX4373UHSU-B2

iiyama ProLite X4373UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black

Quick Code: Q3047234 MPN: X4373UHSU-B2

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