OREI BK-EXB400R-K transmitter enables long-range 4K HDMI transmission with zero latency.
OREI BK-EXB400R-K receiver provides seamless 4K extension with HDR for home theater.
OREI 8K@30Hz compatibility ensures future-proof visuals over long runs.
OREI 4K@120Hz over CAT6/7 up to 400 ft with high bandwidth.
OREI IR pass-through allows remote control from source or display.
OREI PoC-powered setup minimizes cable clutter with a single power source.
OREI RS-232 port supports integration with professional AV systems.
OREI HDR support enhances color and contrast on compatible content.
OREI includes transmitter, receiver, IR kit, and mounting ears for easy setup.

OREI

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

Free U.S. shipping and free 30-day returns. Check the compatible models in the description below.

$315.33

In stock. Ships free, usually within 1–4 business days.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout Free 30-day returns
Spare Keep a spare (2)

Check the listed compatible models and specs before you order. Questions? Email us.

Multi-device One for each device (3)

Free tracked shipping and secure checkout on every U.S. order.

Free shipping

i

Free tracked shipping on every order. Most orders arrive within 3–8 business days.

Free 30-day returns

i

Return eligible items within 30 days of delivery for a full refund. We email you a prepaid return label.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

Email support

Questions about fit or an order? Email nexoltic@gmail.com. We reply on business days (Mon–Fri).

Return & RefundFree 30-day returns, full refund Shipping PolicyDelivery process and tracking info
Share

Product details

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.

FAQ

Q: What can I achieve with the OREI BK-EXB400R-K HDMI Over Ethernet Extender?

A: Extend 4K@120Hz or 8K@30Hz up to 400 ft over a single CAT cable with HDBaseT, HDR, and IR pass-through.

Q: What should I know about setup and compatibility?

A: Use the included TX/RX pair; PoC powers either end; ensure you use the same model pair for best results.

You may also like