The iiyama ProLite LH4375UHS-B2AG is a 43‑inch 4K UHD professional display designed for mission-critical digital signage, with continuous 24/7 operation in landscape or portrait mode. It features Android 11 and iiSignage² for remote content management, an SDM slot for integrated PCs and Signal FailOver for uninterrupted viewing. The 500 cd/m² high brightness IPS panel, combined with Flicker-Free and Blue Light Reducer technologies, ensures crisp images and eye comfort. It also features optional Wi-Fi, DP-Out for daisy-chaining , built-in speakers and cable management for seamless professional installations.
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LH4375UHS‑B2AG – 43" 4K UHD Display for 24/7 professional Digital Signage

The ProLite LH4375UHS‑B2AG is a 43‑inch 4K UHD professional display suitable for mission‑critical environments such as retail, corporate and education, with continuous 24/7 operation in both portrait and landscape mode. Powered by Android 11 and the iiSignage² platform, it enables secure remote content management, while the SDM slot offers flexibility for embedded PCs. Signal FailOver ensures your messages will always stay on, even if the signal is interrupted. With a 500 cd/m² IPS panel, Flicker‑Free and Blue Light technologies, integrated speakers and professional cable management, it combines performance, reliability and viewing comfort.
Main features:
- 43" 4K UHD (3840×2160) display with high brightness IPS panel (500 cd/m²), ideal for bright environments
- Android 11 operating system + iiSignage² for remote content management and app installation directly on the display
- Integrated SDM slot to insert a dedicated PC, maximum flexibility
- Signal FailOver: automatic switching between inputs in case of signal failure
- 24/7 flexible orientation: use in landscape or portrait mode without interruptions
- Anti-eye fatigue : Flicker-Free and Blue Light Reducer technologies included
- Integrated audio (2×10 W) and professional cable management for clean and functional installations
Further details
43” professional display with 4K UHD resolution designed for commercial and corporate environments. It operates continuously 24/7 in landscape or portrait mode and offers advanced remote control, reduced eye fatigue and high performance thanks to the integration of smart features and flexible installation solutions.
Integrated operating system to install apps and ensure maximum compatibility
Digital content management software, accessible remotely
Automatic video source switching in case of no signal
Supports both vertical and horizontal installation
Integrated cable management system for a tidy installation
Technical data sheet
Model | LH4375UHS-B2AG |
DISPLAY CHARACTERISTICS | |
Design | Thin bezel |
Diagonal | 42.5", 108cm |
Panel | IPS, Anti-Glare Coated Glass, haze 25% |
Native resolution | 3840 x 2160 @60Hz (8.3 MegaPixels 4K UHD) |
Aspect ratio | 16:9 |
Panel brightness | 500 cd/m² |
Static contrast | 1200:1 |
Response time (GTG) | 8ms |
Viewing areas | horizontal/vertical: 178°/178°, right/left: 89°/89°, up/down: 89°/89° |
Colour support | 1.07B 8bit+FRC (NTSC 72%) |
Horizontal Sync | 28 - 160kHz |
Viewable area W x H | 941 x 529mm, 37 x 20.8" |
Bezel width (sides, top, bottom) | 14.9mm, 14.9mm, 14.9mm |
Pixel pitch | 0.245mm |
Bezel color and finish | black, matte |
INTERFACES/CONNECTORS/CONTROLS | |
Signal input | HDMI x3 (2.0, max. 3840x2160 @60Hz, ARC on HDMI #3) DisplayPort x1 (1.2, max. 3840x2160 @60Hz) |
Monitor control input | RS-232c x1 (2.5mm sub-mini jack) RJ45 (LAN) x1 IR x1 (3.5mm stereo mini) |
Digital signal output | DisplayPort x1 (max. 3840x2160 @60Hz, MST-out Daisy Chain v.1.2) |
Audio output | Mini-jack x1 (3.5mm) Speakers 2 x 10W |
Monitor control output | RS-232c x1 (2.5mm sub-mini jack) IR loop through x1 (3.5mm stereo mini) |
HDCP | 2.2 |
USB ports | x2 (2.0) |
FEATURES | |
Integrated software | Android 11 OS, iiSignage², iiControl, iiShare, EShare, FailOver |
WiFi | yes (Built-in, 802.11ac) |
Adaptive Sync support | CPU: A311D2 Octa-core A73*4+A53*4, GPU: G52 MP8, RAM: 4GB, ROM: 32GB |
HDR | yes |
Hardware | EN, DE, FR, ES, IT, RU, CZ, NL, PL |
Extra | Intel® SDM-S, micro SD card slot |
Max. non-stop operating time | 24/7 |
Anti-image retention | yes |
Video wall / daisy chain | Yes, from any input signal, (MST-output via DP-Out) |
Media playback | yes |
Housing (bezel) | metal |
GENERAL | |
OSD languages | EN, DE, FR, ES, IT, CN, RU, JP, CZ, NL, PL, SV, FI, DA, NB |
Control buttons | Power (longpress for Quick Menu) |
User controls | picture (brightness, contrast, sharpness, black level, tint, colour, noise reduction, gamma selection, color temp., color control, picture reset), screen (zoom mode, custom zoom, screen reset), audio (balance, treble, bass, volume, audio out, max. volume, min. volume, mute, audio reset, audio out sync, speaker setting), configuration 1 (Android launcher, switch on state, panel saving, RS232-routing, boot on source, WOL, configuration 1 reset, factory reset), configuration 2 (OSD timeout, OSD H-Position, OSD V-position, system rotation, info OSD, logo and animation, logo setting, animation setting, monitor ID, group ID, monitor info, DP version, DP monitors, HDMI version, configuration 2 reset), advanced options (no signal image, motorized stand, IR control, power LED light, tiling, off timer, schedule, HDMI with One Wire, HDMI with One Wire power off, Signal FailOver, language, OSD transparency, power saving, auto power off, SDM settings, advanced options reset), Android settings (network & internet, apps & notifications, display, signage display, security, language & input, date & time, about device) |
Plug&Play | DDC2B |
MECHANICAL | |
Orientation | landscape, portrait |
Fanless design | yes |
VESA mounting | 200 x 200mm |
Mini PC mount | VESA 75 x 75, VESA 100 x 100 |
Operating temperature range | 0°C - 40°C |
Storage temperature range | - 20°C - 60°C |
MTBF | 44,000 hours (excluding backlight) |
ACCESSORIES INCLUDED | |
Cables | power, HDMI, RS-232c |
Guides | quick start guide, safety guide |
Other | Stickers for screw holes, wire buckles |
Remote control | yes (batteries included) |
POWER MANAGEMENT | |
Power supply unit | internal |
Power supply | AC 100 - 240V, 50/60Hz |
Power usage | 101W typical, 0.5W stand by, 0.3W off mode |
SUSTAINABILITY | |
Regulations | CB, CE, TÜV-Bauart, EAC, RoHS support, ErP, WEEE, REACH |
Energy efficiency class (Regulation (EU) 2017/1369) | G |
DIMENSION/WEIGHT | |
Product dimensions W x H x D | 968 x 557 x 54mm |
Box dimensions W x H x D | 1075 x 683 x 127mm |
Weight (without box) | 8.9kg |
Weight (with box) | 12.5kg |