iiyama ProLite X4373UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black
Product overview & specifications
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.
| 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 | 94.1 cm |
| Viewable size, vertical | 52.9 cm |
| Display resolution | 3840 x 2160 pixels |
| Response time | 3 ms |
| Display diagonal | 108 cm (42.5") |
| Contrast ratio (typical) | 4000:1 |
| NTSC coverage (typical) | 85% |
| Touchscreen | No |
| High Dynamic Range (HDR) supported | Yes |
| Panel type | VA |
| Colour depth | 10 bit |
| 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 | 14 W |
| Performance | |
| Built-in speaker(s) | Yes |
| RMS rated power | 14 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 | German, English, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, Ukrainian |
| Multimedia | |
| Number of speakers | 2 |
| Built-in speaker(s) | Yes |
| RMS rated power | 14 W |
| Built-in camera | No |
| Power | |
| Power cable length | 1.8 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) | 0.3 W |
| Energy efficiency scale | A to G |
| Energy efficiency class (SDR) | E |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 40.9 kWh |
| Energy consumption (HDR) per 1000 hours | 79.1 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) |
| Headphone out | Yes |
| HDMI ports quantity | 2 |
| DisplayPorts quantity | 1 |
| HDCP | Yes |
| HDMI | Yes |
| HDMI version | 2.0 |
| DisplayPort version | 1.2 |
| USB Power Delivery (USB PD) | Yes |
| USB Power Delivery up to | 95 W |
| USB Type-C DisplayPort Alternate Mode | Yes |
| Built-in KVM switch | Yes |
| Number of downstream ports | 4 |
| Technical details | |
| Cable lock slot | Yes |
| HDMI | Yes |
| Product colour | Black |
| User controls | picture adjust (brightness, contrast, ECO, HDR, ACR, OD, X-res technology, black tuner), colour settings (6-axis, i-Style colour, blue light reducer, gamma, RGB range, colour temperature, user preset), PiP/PbP ( PiP/PbP, sub-source, PiP position, PiP size, swap, audio input), OSD (OSD H. position, OSD V. position, OSD time, OSD background, display information, language), miscellaneous (sharpness, video mode adjust, opening logo, power LED, USB-C speed, USB charge, KVM, DDC/CI control, dual mode), input select (source), audio settings (volume, mute audio), recall (recall all?) |
| Sustainability certificates | ErP |
| Compliance certificates | CE, EAC, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE |
| Packaging content | quick start guide, safety guide |
| 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 | 10 - 2° |
| On Screen Display (OSD) | Yes |
| On Screen Display (OSD) languages | German, English, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, 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 |
| Width | 977.5 mm |
| Weight | 14.7 kg |
| Height | 621.5 mm |
| Depth | 251 mm |
| Packaging data | |
| Package width | 1071 mm |
| Package depth | 240 mm |
| Package height | 760 mm |
| Package weight | 19.3 kg |
| Package type | Box |
| USB cable length | 1.8 m |
| Power cable length | 1.8 m |
| Remote control included | Yes |
| Cables included | AC, USB, HDMI, 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 | 1.8 m |
| Remote control included | Yes |
| Cables included | AC, USB, HDMI, DisplayPort, USB Type-C |
| DisplayPort cable length | 1.8 m |
| HDMI cable length | 1.8 m |
| Remote control batteries included | Yes |
| USB cable length | 1.8 m |
| Sustainability | |
| Sustainability certificates | ErP |
| Other features | |
| Packaging content | quick start guide, safety guide |
| User controls | picture adjust (brightness, contrast, ECO, HDR, ACR, OD, X-res technology, black tuner), colour settings (6-axis, i-Style colour, blue light reducer, gamma, RGB range, colour temperature, user preset), PiP/PbP ( PiP/PbP, sub-source, PiP position, PiP size, swap, audio input), OSD (OSD H. position, OSD V. position, OSD time, OSD background, display information, language), miscellaneous (sharpness, video mode adjust, opening logo, power LED, USB-C speed, USB charge, KVM, DDC/CI control, dual mode), input select (source), audio settings (volume, mute audio), recall (recall all?) |
| Width | 977.5 mm |
| Weight | 14.7 kg |
| Height | 621.5 mm |
| Depth | 251 mm |
| Compliance certificates | CE, EAC, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE |
| Control panel | Input Select, +/Volume, -/Shortcut, Menu, Power |
| Remote control included | Yes |
| HDMI | Yes |
| USB Power Delivery up to | 95 W |
| Energy efficiency scale | A to G |
| USB Type-C DisplayPort Alternate Mode | Yes |
| Power supply type | Internal |
| Power cable length | 1.8 m |
| Touchscreen | No |
| USB Power Delivery (USB PD) | Yes |
| Package type | Box |
iiyama ProLite X4373UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black
£495.42
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iiyama ProLite X4373UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black
iiyama ProLite X4373UHSU-B2 computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LED Black
£495.42
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.
| 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 | 94.1 cm |
| Viewable size, vertical | 52.9 cm |
| Display resolution | 3840 x 2160 pixels |
| Response time | 3 ms |
| Display diagonal | 108 cm (42.5") |
| Contrast ratio (typical) | 4000:1 |
| NTSC coverage (typical) | 85% |
| Touchscreen | No |
| High Dynamic Range (HDR) supported | Yes |
| Panel type | VA |
| Colour depth | 10 bit |
| 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 | 14 W |
| Performance | |
| Built-in speaker(s) | Yes |
| RMS rated power | 14 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 | German, English, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, Ukrainian |
| Multimedia | |
| Number of speakers | 2 |
| Built-in speaker(s) | Yes |
| RMS rated power | 14 W |
| Built-in camera | No |
| Power | |
| Power cable length | 1.8 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) | 0.3 W |
| Energy efficiency scale | A to G |
| Energy efficiency class (SDR) | E |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 40.9 kWh |
| Energy consumption (HDR) per 1000 hours | 79.1 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) |
| Headphone out | Yes |
| HDMI ports quantity | 2 |
| DisplayPorts quantity | 1 |
| HDCP | Yes |
| HDMI | Yes |
| HDMI version | 2.0 |
| DisplayPort version | 1.2 |
| USB Power Delivery (USB PD) | Yes |
| USB Power Delivery up to | 95 W |
| USB Type-C DisplayPort Alternate Mode | Yes |
| Built-in KVM switch | Yes |
| Number of downstream ports | 4 |
| Technical details | |
| Cable lock slot | Yes |
| HDMI | Yes |
| Product colour | Black |
| User controls | picture adjust (brightness, contrast, ECO, HDR, ACR, OD, X-res technology, black tuner), colour settings (6-axis, i-Style colour, blue light reducer, gamma, RGB range, colour temperature, user preset), PiP/PbP ( PiP/PbP, sub-source, PiP position, PiP size, swap, audio input), OSD (OSD H. position, OSD V. position, OSD time, OSD background, display information, language), miscellaneous (sharpness, video mode adjust, opening logo, power LED, USB-C speed, USB charge, KVM, DDC/CI control, dual mode), input select (source), audio settings (volume, mute audio), recall (recall all?) |
| Sustainability certificates | ErP |
| Compliance certificates | CE, EAC, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE |
| Packaging content | quick start guide, safety guide |
| 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 | 10 - 2° |
| On Screen Display (OSD) | Yes |
| On Screen Display (OSD) languages | German, English, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, 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 |
| Width | 977.5 mm |
| Weight | 14.7 kg |
| Height | 621.5 mm |
| Depth | 251 mm |
| Packaging data | |
| Package width | 1071 mm |
| Package depth | 240 mm |
| Package height | 760 mm |
| Package weight | 19.3 kg |
| Package type | Box |
| USB cable length | 1.8 m |
| Power cable length | 1.8 m |
| Remote control included | Yes |
| Cables included | AC, USB, HDMI, 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 | 1.8 m |
| Remote control included | Yes |
| Cables included | AC, USB, HDMI, DisplayPort, USB Type-C |
| DisplayPort cable length | 1.8 m |
| HDMI cable length | 1.8 m |
| Remote control batteries included | Yes |
| USB cable length | 1.8 m |
| Sustainability | |
| Sustainability certificates | ErP |
| Other features | |
| Packaging content | quick start guide, safety guide |
| User controls | picture adjust (brightness, contrast, ECO, HDR, ACR, OD, X-res technology, black tuner), colour settings (6-axis, i-Style colour, blue light reducer, gamma, RGB range, colour temperature, user preset), PiP/PbP ( PiP/PbP, sub-source, PiP position, PiP size, swap, audio input), OSD (OSD H. position, OSD V. position, OSD time, OSD background, display information, language), miscellaneous (sharpness, video mode adjust, opening logo, power LED, USB-C speed, USB charge, KVM, DDC/CI control, dual mode), input select (source), audio settings (volume, mute audio), recall (recall all?) |
| Width | 977.5 mm |
| Weight | 14.7 kg |
| Height | 621.5 mm |
| Depth | 251 mm |
| Compliance certificates | CE, EAC, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE |
| Control panel | Input Select, +/Volume, -/Shortcut, Menu, Power |
| Remote control included | Yes |
| HDMI | Yes |
| USB Power Delivery up to | 95 W |
| Energy efficiency scale | A to G |
| USB Type-C DisplayPort Alternate Mode | Yes |
| Power supply type | Internal |
| Power cable length | 1.8 m |
| Touchscreen | No |
| USB Power Delivery (USB PD) | Yes |
| Package type | Box |