OREI KVM 4K HDMI Extender Balun Over Single CAT6/7 Cable - 4K 30Hz

In this review the OREI KVM 4K HDMI Extender Balun is evaluated for people who need to place a PC or media source far from its display while keeping full keyboard and mouse control. The bottom line: it is a straightforward, compact extender that delivers reliable, low-latency video up to 130 ft at 4K@30hz and extended distances at 1080p, making it a strong choice for control rooms, digital signage, and workstations where simple plug-and-play setup and USB 1.1 KVM control matter.

Key Features

• 4K over CAT6/7: Sends 4K@30hz up to 40 m (about 130 ft) over a single CAT6 or CAT7 cable for long-run 4K installations without complex fiber or HDMI runs.
• Extended 1080p reach: Supports 1080p@60hz at even longer distances, making it suitable for Full HD displays and longer cable runs up to the vendor-stated limits.
• Zero latency transmission: OREI technology provides lossless and lag-free video so remote control, presentations, and video playback feel instantaneous.
• USB 1.1 KVM support: Two USB 1.1 ports let you control a remote PC with a keyboard and mouse from the receiver end, avoiding the need for extra KVM routing hardware.
• Audio extraction: The receiver includes a 3.5 mm stereo audio out so you can route analog audio to speakers or headphones at the display location.
• HDCP and HDMI compatibility: Compliant with HDMI 1.4 and HDCP 1.4, covering common video formats and audio types such as PCM and DTS variants.

Who It's For

This extender is aimed at IT administrators, AV integrators, and power users who need a reliable, compact solution to extend HDMI with remote keyboard and mouse control. It is especially useful for digital signage, remote workstations, security monitoring, and installations where a single CAT6 or CAT7 run is preferred over long HDMI cables.

Users who need 4K at 60hz or ultra-high refresh gaming should look elsewhere, since the product is specified for 4K@30hz. Also, environments that require the latest HDMI 2.x features or higher-bandwidth HDR formats may need a different extender.

Pros & Cons

Pros

• Reliable, low-latency video transmission that preserves picture quality over long CAT6/7 runs.
• Convenient USB 1.1 KVM function for remote keyboard and mouse control without separate KVM hardware.
• Compact, plug-and-play units with included power adapters and clear setup.
• Analog audio extraction at the receiver for easy speaker or headphone connection.

Cons

• Limited to 4K@30hz, so it is not suitable for 4K@60hz use cases or high-refresh gaming.
• USB is 1.1, which is fine for keyboard and mouse but not for high-speed USB peripherals.

Specifications

Product Type	HDMI Extender Balun with KVM
Video Support	4K@30hz, 1080p up to 60hz
Max Range	4K: up to 40 m (approx 130 ft); 1080p: extended range per CAT6
HDMI Version	HDMI 1.4, HDCP 1.4
USB	2 x USB 1.1 ports (KVM)
Audio Out	3.5 mm stereo analog output on receiver
Included Items	HDMI sender, HDMI receiver, 2 power adapters, manual

Our Verdict

The OREI KVM HDMI Extender Balun is a practical value for anyone needing reliable, low-latency remote video with basic KVM control. It excels in long-run 4K@30hz and Full HD scenarios, is simple to install, and includes useful audio extraction. Choose this unit for remote workstations, digital signage, or monitoring stations; pick a different model if you require 4K@60hz or high-speed USB peripheral support.

Frequently Asked Questions

Does this extender support 4K at 60hz?
No. The unit supports 4K@30hz; 4K@60hz is not supported and users needing 60hz should choose a higher-bandwidth solution.

Can I use a CAT6 cable I already have?
Yes. The extender is designed to run over a single CAT6 or CAT7 cable; performance will depend on cable quality and length.

Will the USB ports work for a keyboard and mouse?
Yes. The two USB 1.1 ports provide KVM control for keyboard and mouse, but they are not suitable for high-speed USB devices.