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iiyama Prolite X4373UHSU-B1 is a top-of-the-line 43-inch monitor that delivers an immersive viewing experience with its Ultra HD 4K resolution and PbP (picture-by-picture) function, which enables you to display up to four different signal inputs simultaneously. With its bezel-free design, the monitor provides users with a seamless and uninterrupted view, while eliminating the need for multiple cables.
Equipped with VA panel technology, the X4373UHSU-B1 offers consistent color reproduction, superb clarity, and wide 178° viewing angles, making it ideal for a variety of professional applications. Additionally, the monitor's flicker-free technology and blue light reducer functions help to reduce eye strain and ensure user comfort, even on extended workdays.
The X4373UHSU-B1 boasts a wide range of connectivity options, including HDMI, DisplayPort, USB hub, and a headphone connector, making it compatible with a variety of devices and media platforms. Whether you're a professional graphic designer or simply need a large display for retail environments or data analysis, the iiyama X4373UHSU-B1 is a perfect choice for maximizing productivity.
Work smarter, not harder - PbP function, the ultimate productivity booster for multitasking pros!
The PbP (picture-by-picture) function allows for the simultaneous display of content from up to four different signal inputs. Divided into four, the screen offers users a workplace equal to four Full HD displays put together without the bezel getting in your view and saving you the hassle of extra cables. It’s perfect for a huge range of applications like stock market data, medical desktop publishing, CAD/CAM drawings, and graphic and web design.
UHD resolution (3840x2160), better known as 4K, offers a gigantic viewable area with 4 times more information and work space than a Full HD screen. Due to the high DPI (dots per inch), it displays an incredibly sharp and crisp image.
Protect your eyes, and enhance your view - flicker-free and blue light, the perfect duo! 
The ultimate solution for the comfort and health of your eyes. Flicker-free monitors with the blue light reducer function substantially reduce the strain and fatigue caused by flickering and blue light emittance of regular monitors.
Deeper blacks, brighter whites, and perfect viewing angles, every time!
VA panel technology offers higher contrast, darker blacks and much better viewing angles than standard TN technology. The screen will look good no matter what angle you look at it.
Clarity is key - listen up! 
This LED monitor is equipped with two high-quality stereo speakers.
| Diagonal | 42.5", 108cm |
| Panel | VA matrix, matte finish |
| Native resolution | 3840 x 2160 @60Hz 4K |
| Aspect ratio | 16:9 |
| Panel brightness | 400 cd/m² |
| Static contrast | 4000:1 |
| Advanced contrast | 80M:1 |
| Response time (GTG) | 3ms |
| Viewing zone | horizontal/vertical: 178°/178°, right/left: 89°/89°, up/down: 89°/89° |
| Colour support | 1.07B 10bit (8bit + Hi-FRC) (NTSC: 85%) |
| Horizontal Sync | 30 - 135kHz |
| Viewable area W x H | 941.18 x 529.42mm, 37.1 x 20.8" |
| Pixel pitch | 0.245mm |
| Colour | matte, black |
| Signal input | HDMI x2 DisplayPort x1 mDP x1 |
| Signal output | DisplayPort x1 (daisy chain) |
| USB HUB | x4 (v.3.0 x2, v.2.0 x2) |
| HDCP | yes |
| Headphone connector | yes |
| Blue light reducer | yes |
| Flicker free | yes |
| Extra | headphone hook |
| HDR | yes |
| OSD languages | EN, DE, FR, ES, IT, PT, RU, JP, NL, PL |
| Control buttons | Input Select, Up, Down, Menu, Power |
| User controls |
picture adjust (brightness, contrast, ECO, blue light reducer, advanced contrast, overdrive, black tuner), image settings (video mode adjust, sharp and soft, X-Res technology), colour settings (gamma, 6-axis, colour temperature, i-Style colour), PiP/PbP (PiP/PbP mode, sub win 1/2/3/4 input, PiP size, PiP position, swap), signal select, audio settings (volume, mute, audio input), OSD settings (OSD H. position, OSD V. position, OSD time, language), extra (reset, HDR, HDMI range, DDC/CI, opening logo, LED, DP daisy chain, information) |
| Speakers | 2 x 7W |
| Convenience | Kensington-lock™ prepared, DDC/CI, DDC2B, Mac OSX |
| Display position adjustments | tilt |
| Tilt angle | 10° up; 2° down |
| VESA mounting | 200 x 100mm |
| Cables | power, USB, HDMI, DP |
| Other | quick start guide, safety guide |
| Remote control | yes (batteries included) |
| Power supply unit | internal |
| Power supply | AC 100 - 240V, 50/60Hz |
| Power usage | 92W typical, 0.5W stand by, 0.5W off mode |
| Regulations | CE, TÜV-Bauart, EAC, PSE, RoHS support, ErP, WEEE, VCCI, REACH, UKCA |
| Energy efficiency class (Regulation (EU) 2017/1369) | G |
| REACH SVHC | above 0.1%: Lead |
| Product dimensions W x H x D | 977.5 x 621.5 x 251mm |
| Box dimensions W x H x D | 1071 x 760 x 240mm |
| Weight (without box) | 14.5kg |
| Weight (without stand) | 12.7kg |
| Weight (with box) | 19kg |
| EAN code | 4948570118519 |
| Warranty | Product | Cover |
| Visioncare | Desktop LCD products (Monitors) (17" - 43") |
3 years on-site UK warranty. (Upgrades to 5 years available) |
| Touchcare |
LCD touchscreen products | 3 years repair and return. (Upgrades to on-site & 5 years available) |
| LFD | Large Format Displays Standard Warranty |
3 years collect and return (Upgrade to swap, installation & 5 years available) Download |
HOW TO ACTIVATE YOUR WARRANTY
There is no need to pre-register your warranty, just follow the six simple steps below to activate your warranty should the need arise. First-class service is assured by our experienced engineers and customer service helpdesk.
Step one - Check that all connections have been properly made.
Step two - Check the set-up in the user manual. Wherever possible, please try to check your iiyama product with alternate equipment before contacting the iiyama customer service help desk.
Step three - If the fault cannot be cured by the above means, call the iiyama customer service helpdesk on 01926 819 189. Please have ready to hand the following details: model number, serial number and date of purchase*. Or fill in the Service Request Form.
Step four - Your fault will be registered and you will be issued with a returns number, which you must quote on all paperwork relating to the defective unit.
Step five - Please retain any of your leads and manuals. Replacement/returned units will not include these sundry items.
Step six - Please ensure your product is clean and presentable before packaging it in the original box for collection.
* Proof of purchase may be required
ON-SITE SWAP OUT
PIONEERING CUSTOMER SERVICE.
iiyama has always strived to achieve maximum reliability and to prove our belief in our products we were the first manufacturer to confidently guarantee our display products with a 3-year on-site warranty as standard changing and shaping the warranty landscape forever.
Visioncare is our comprehensive warranty support scheme for standard desktop display products. We understand that should a fault occur, downtime needs to be minimised and vision care was designed to do just that.
1-) If your display should develop a fault within the first 2 years of purchase, iiyama will arrange a replacement unit of an equivalent or higher specification.
2-) iiyama endeavours to dispatch the replacement unit within 24hrs whenever possible.
3-) iiyama takes care of the swap out and all carraige charges.
And it's not just us at iiyama that believes we provide great service, our customers think so too. iiyama has been proud to receive many reader-voted magazine awards for customer satisfaction and reliability.
For Desktop and Touchscreen displays (below 42") service
Call 01926 819189 between 9:00am - 5:30pm Monday to Friday
For Large Format Displays (42" and above) service
Call 03302 020 463 between 9:00am - 5:30pm Monday to Friday
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