OREI BK-EXB400R-K: 4K@120Hz HDMI Over Ethernet Extender Balun | 8K@30Hz, HDR, IR, RS-232, PoC up to 400 ft

Overview

The OREI BK-EXB400R-K HDMI Over Ethernet Extender Balun brings premium AV distribution to any space, using a single CAT cable to carry uncompressed video and audio signals. Built on HDBaseT technology, it aims to deliver smooth, low-latency performance for entertainment, gaming, and professional environments while keeping setup simple.

Whether you’re creating a dedicated home theater, a conference room, or a multi‑room media zone, this extender balances high bandwidth with practical features like infrared control and RS-232 integration. It supports modern HDMI 2.1 capabilities, including high resolutions and dynamic color formats, without demanding a second power outlet at both ends thanks to Power over Cable (PoC).

Performance and versatility

Key capabilities are designed to cover today’s content and tomorrow’s formats. Expect robust video while keeping options flexible for room layouts and source placements.

• 4K video at 120 Hz over a single CAT5e/6/7 cable up to 400 feet, with virtually zero perceptible delay.
• 8K at 30 Hz support, plus 4K at 60 Hz/UHD with full color and HDR compatibility for vivid, lifelike imagery.
• HDR formats including HDR10+, Dolby Vision, and HLG, plus wide color and dynamic metadata support.
• High‑speed, uncompressed transmission (40 Gbps FRL and 18 Gbps TMDS) to preserve detail and texture.
• Bi‑directional IR pass‑through to control sources from either end of the link.
• CEC control and PoC (Power over Cable) for streamlined setup and centralized power management.
• RS-232 compatibility for professional AV system integration and automation workflows.

Practical use cases

Use this extender to stream immersive visuals from a media player, PC, or gaming console to a distant display with pristine quality. It’s well suited for a living room theater, a classroom AV setup, or a corporate boardroom where clean routing and flexible placement matter.

What’s included and setup notes

• 1x HDMI Transmitter, 1x HDMI Receiver
• 1x PoC-enabled Power Adapter
• 1x Bi-directional IR kit
• 1x Set of mounting ears
• 1x User manual for quick, straightforward installation

Important: OREI HDBaseT models are designed to pair with their own matching transmitter and receiver. For best results, use the included pair from the same model.

Warranty and support

This product is backed by OREI support and includes a 1‑year warranty for peace of mind as you deploy + expand your AV setup.