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.
iiyama ProLite X4373UHSU-B2 computer monitor 109.2 cm (43") 3840 x 2160 pixels 4K Ultra HD LED Black
SKU: X4373UHSU-B2Call for pricing
Display HDCP Yes Display brightness (typical) 450 cd/m² Screen shape Flat Display number of colours 1.07 billion colours Native aspect ratio 16:9 Maximum refresh rate 60 Hz sRGB coverage (typical) 100% HD type 4K Ultra HD Display technology LED Contrast ratio (dynamic) 80000000:1 Viewing angle, horizontal 178° Viewing angle, vertical 178° Pixel pitch 0.245 x 0.245 mm Horizontal scan range 30 - 135 kHz Viewable size, horizontal 52.9 cm Viewable size, vertical 94.1 cm Display resolution 3840 x 2160 pixels Response time 3 ms Display diagonal 109.2 cm (43") Contrast ratio (typical) 4000:1 NTSC coverage (typical) 85% Touchscreen No High Dynamic Range (HDR) supported Yes Panel type VA High Dynamic Range (HDR) technology High Dynamic Range 10 (HDR10) Display diagonal (metric) 108 cm Colour gamut standard NTSC, sRGB Response time measurement type GTG (Gray to Gray) Audio Built-in speaker(s) Yes RMS rated power 7 W Performance Built-in speaker(s) Yes RMS rated power 7 W Built-in camera No Low Blue Light technology Yes Flicker-free technology Yes Management features On Screen Display (OSD) Yes On Screen Display (OSD) languages English, German, French, Spanish, Italian, Portuguese, Russian, Japanese, Dutch, Polish, Ukrainian Multimedia Number of speakers 2 Built-in speaker(s) Yes RMS rated power 7 W Built-in camera No Power Power cable length 18 m Power supply type Internal AC input voltage 100 - 240 V AC input frequency 50/60 Hz Power consumption (standby) 0.5 W Power consumption (typical) 41 W Power consumption (off) 0.5 W Energy efficiency scale A to G Energy efficiency class (SDR) E Energy efficiency class (HDR) G Energy consumption (SDR) per 1000 hours 41 kWh Energy consumption (HDR) per 1000 hours 79 kWh Design Market positioning Business Product colour Black Camera Built-in camera No Ports & interfaces Built-in USB hub Yes USB hub version 3.2 Gen 1 (3.1 Gen 1) USB upstream port type USB Type-A, USB Type-C Headphone out Yes HDMI ports quantity 2 DisplayPorts quantity 1 HDCP Yes HDMI Yes HDMI version 2.0 DisplayPort version 1.2 Built-in KVM switch Yes Technical details Cable lock slot Yes HDMI Yes Product colour Black Power supply type Internal Weight (with stand) 14.7 kg Touchscreen No Ergonomics Wall mountable Yes VESA mounting Yes Cable lock slot Yes Panel mounting interface 200 x 100 mm Tilt angle range 2 - 10° On Screen Display (OSD) Yes On Screen Display (OSD) languages English, German, French, Spanish, Italian, Portuguese, Russian, Japanese, Dutch, Polish, Ukrainian Height adjustment No Cable lock slot type Kensington Cable management Yes Tilt adjustment Yes 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 width 1071 mm Package depth 240 mm Package height 760 mm Package weight 19.3 kg Packaging data Package width 1071 mm Package depth 240 mm Package height 760 mm Package weight 19.3 kg Package type Box Power cable length 18 m Remote control included Yes Cables included Power, HDMI, USB, DisplayPort, USB Type-C DisplayPort cable length 1.8 m HDMI cable length 1.8 m Remote control batteries included Yes Packaging content Power cable length 18 m Remote control included Yes Cables included Power, HDMI, USB, DisplayPort, USB Type-C DisplayPort cable length 1.8 m HDMI cable length 1.8 m Remote control batteries included Yes Other features Remote control included Yes HDMI Yes Energy efficiency scale A to G Power supply type Internal Power cable length 18 m Touchscreen No Package type Box Your parcel will arrive within 5 business days (excluding weekends and public holidays) after you place your order. Items are shipped in working days only, your order may arrive anytime between 7am and 9pm. Deliveries are not made on public holidays, so you can expect your order to arrive the next working day.
Items must be returned in an unused and saleable condition within 16 days of the receipt of goods. Please read our delivery and returns policy for further information.