4K HDMI Over Ethernet 1x4 Splitter Extender - Mirrored 4 Outputs

In this review the OREI 4K HDMI Over Ethernet 1x4 system is evaluated for installers and AV users who need one HDMI source mirrored to multiple displays across longer cable runs. The standout reason to consider it is straightforward: it distributes a full 3840x2160p@60Hz 4:4:4 signal to four remote screens using Cat6/7/8 cable with one transmitter that includes a local HDMI loop out, reducing the need for extra power bricks at each display thanks to Power Over LAN. Setup is plug-and-play, and the kit includes four receivers plus IR control accessories for remote operation.

Key Features

• 4K@60Hz 4:4:4 support: Delivers high-bandwidth 3840x2160p video with HDR, HDR10, HDR10+ and Dolby Vision support for accurate color and detail on compatible displays.
• One-to-four distribution: Mirrors a single HDMI source to four independent receivers over Cat6/6a/7 cable up to 115 ft for 4K and up to 165 ft for 1080p, simplifying multi-display deployments.
• Loop output at source: Includes an extra HDMI loop out on the transmitter so a local monitor at the source can display the same feed without another splitter.
• Power over LAN: Only one power adapter is required for the whole system, making receiver ends clean and free of extra adapters in wall- or ceiling-mounted installs.
• IR pass-through: Full IR remote control input with included IR blaster and receiver cables allows controlling the source device from remote display locations over a dedicated DDC channel.
• Plug-and-play setup: No software required and the transmitter includes multiple CAT6 outputs so no external switcher is needed for the typical 1x4 configuration.

Who It's For

The unit is well suited to meeting rooms, bars, exhibition booths and small commercial spaces that need the same HDMI content displayed on multiple screens across distances where standard HDMI cables would fall short. Integrators who want a compact kit with transmitter, four receivers, IR cabling and a single power adapter will appreciate the included accessories and simple topology.

Those who need independent sources per display, signal switching between inputs, or runs significantly beyond the indicated distances should look elsewhere or consider additional network-based AV extenders and matrix solutions. This product is focused on mirrored distribution rather than complex matrix routing.

Pros & Cons

Pros

• Supports high-bandwidth 4K@60Hz 4:4:4 with HDR formats for excellent picture quality.
• Receivers do not require individual power adapters thanks to Power Over LAN, simplifying installs.
• Includes IR blaster and IR receiver cables for remote control of the HDMI source from display locations.
• Transmitter has a loop out so a local display can be connected without extra hardware.

Cons

• Functionality reports are mixed: a small number of customers experienced early failures, so installations needing long-term unattended uptime may want to keep spares or test thoroughly.
• Mirrored distribution only; it is not a matrix switcher for independent content on each screen.

Specifications

Our Verdict

The OREI 4K HDMI Over Ethernet 1x4 kit is a practical, value-minded choice for anyone who needs to mirror a single 4K source to multiple displays across modest distances without running multiple HDMI cables. Its support for HDR and IR pass-through, plus Power Over LAN and the included receivers, make it a tidy solution for conference rooms, bars and exhibition use. Installers should verify reliability in their environment and keep spare units if continuous, mission-critical uptime is required.

Frequently Asked Questions

Can I control the HDMI source from the remote displays?
Yes. The kit includes IR blaster and receiver cables and supports IR pass-back so you can operate the source from remote locations.

Do the receivers need a separate power adapter?
No. The system supports Power Over LAN so only one power adapter is required to power the transmitter and receivers.

What cable should I use for the longest 4K runs?
Use high-quality CAT6a or CAT7 cable to approach the specified 115 ft distance for 4K; CAT6 is supported but performance is best with higher-grade cable.