UGREEN HDMI Splitter 1 In 4 Out 4K UK – 40202UK

The UGREEN HDMI splitter 1 in 4 (model 40202UK) is an active amplifier splitter that distributes a single HDMI source signal to four displays simultaneously. It accepts one HDMI input and duplicates the signal across four HDMI outputs, transmitting identical video and audio to all connected screens at the same time. Consequently, it suits home entertainment rooms, classrooms, retail digital signage, conference rooms, and any installation where one source must feed multiple displays without signal degradation.

The key distinction between a splitter and a switch is important to understand before purchase. A switch selects between multiple sources for one display; a splitter, by contrast, distributes one source to multiple displays. Therefore, the 40202UK is the correct choice when the goal is simultaneous multi-screen output from a single device — not source selection. All four outputs mirror the input signal identically, and extended desktop mode across displays is not supported.

Signal Amplification, EDID, and CEC

The 40202UK uses an active internal chipset with signal amplification, which is why it requires external power via a DC 5V/1A supply. This amplification ensures that the signal reaching each of the four outputs maintains full quality regardless of the cable runs involved. Without amplification, a passive splitter would divide signal power by four, resulting in a degraded picture on each display — particularly over longer cable runs.

EDID management is built in, providing four selectable EDID modes that allow the splitter to negotiate the correct resolution and refresh rate with all connected displays. This resolves the common problem of black screens or flickering when displays of different resolutions are connected simultaneously. Additionally, CEC pass-through is supported on Output 1, enabling compatible displays to respond to source device commands — such as power-on and input selection — over the HDMI connection. The UK variant includes a UK-plug power adapter, making it ready for use without additional accessories.

Technical Specifications

Device & Build

Video Performance

Audio

Power

In the Box

Use Cases and Applications

Multi-Room and Multi-Zone Home Entertainment

A media player, set-top box, or Blu-ray player in a central location can feed the same content to four televisions in different rooms using the 40202UK. The active amplification maintains signal quality over longer cable runs between rooms, which passive splitters cannot reliably achieve. Furthermore, the UK power adapter is included, so the unit is ready for installation without sourcing a separate supply. This arrangement is particularly useful in hospitality environments — hotels, sports bars, and waiting areas — where the same channel or content must display across multiple screens simultaneously.

Classrooms and Training Rooms

A presenter’s laptop or desktop connecting to four monitors or projectors in a classroom or training room benefits from the 40202UK’s active signal distribution. All four displays receive an identical, full-quality image without degradation. Additionally, the EDID management resolves compatibility issues that commonly arise when classroom projectors and monitors of different ages and specifications are connected to the same source. Consequently, the presenter avoids the black-screen issues that frequently occur with passive splitters in mixed-display environments.

Retail Digital Signage and Public Displays

Retail environments and public information points frequently require one media player to drive multiple display panels — for instance, a product demonstration loop shown on four screens arranged in a product zone. The 40202UK supports this application directly, and its cascadable output additionally allows the installation to expand beyond four displays by chaining further splitters. Moreover, the compact form factor and operating temperature range of 0°C–48°C make the unit suitable for installation in display cabinets, AV racks, and back-of-house equipment areas.