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4K HDBaseT 1x8 HDMI™ Extender Splitter (Loop) - 400ft (cat6)-UHD18-EXB400-K

$999.99 USD $1,299.99

SKU: UHD18-EXB400-K

HDR10+ and Dolby Vision support
Audio extraction through Coax and balanced Analog
Bi-directional IR control

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4K HDBaseT 1x8 HDMI™ Extender Splitter (Loop) - 400ft (cat6)-UHD18-EXB400-K

1. Distribute 1 HDMI Source to 8 Displays Over Long Distances

The UHD18-EXB400-K lets you extend and split one HDMI source to up to eight remote displays using individual CAT6/6a/7 cables. Built on HDBaseT technology, it delivers 4K@60Hz video up to 394 feet (120m) and 1080p up to 492 feet (150m) — all with zero signal degradation. An HDMI loop-out port enables direct connection to a local monitor at the source.

2. Uncompromised 4K Video Quality with HDR Support

Enjoy crystal-clear 4K@60Hz (4:4:4) video with 18Gbps bandwidth for uncompressed transmission and vibrant visuals. Full support for HDR10+ and Dolby Vision ensures deep contrast, lifelike colors, and immersive detail—perfect for high-end displays in commercial or residential installations.

3. Flexible Audio Output & Remote Control Integration

Extract digital or analog audio via coaxial and balanced analog outputs on the transmitter for integration with speakers or amplifiers. Bi-directional IR control allows remote device operation from either end of the setup, and RS-232 support makes it easy to integrate into third-party AV control systems.

4. Installer-Friendly Design with Power over Cable (PoC)

Simplify setup with PoC functionality—only the transmitter needs a power adapter, reducing cable clutter. Advanced EDID management guarantees compatibility with various displays. With its durable build and rack-mountable design, the UHD18-EXB400-K is ideal for AV professionals building control rooms, digital signage networks, or educational displays.

UHD18-EXB400-K: 18Gbps HDMI 1×8 HDBaseT Splitter

Key Features:

HDMI 2.0 and HDCP 2.2 compliant – Fully supports modern video formats and copy protection standards.
Resolutions up to 4K@60Hz – Transmits ultra-high-definition content for enhanced viewing experiences.
18Gbps video bandwidth – Ensures smooth, uncompressed AV performance.
Long-distance signal extension – Reach up to 394 ft at 4K and 492 ft at 1080p over CAT6/6a/7 cables.
HDR10+ and Dolby Vision support – Maintains high dynamic range video formats for vivid picture quality.
Audio extraction outputs – Supports coaxial and balanced analog outputs for flexible audio routing.
HDBaseT technology – Enables reliable long-range signal transmission with minimal latency.
HDMI loop-out on transmitter – Allows connection of a local display at the source location.
Bi-directional IR control – Provides control of source and display devices from either end.
Power over Cable (PoC) – Only one power adapter required at the transmitter end.
RS-232 control support – Allows integration with third-party control systems.
Advanced EDID management – Optimizes compatibility between source and display devices.
Durable and easy to install – Built for performance and simplicity in professional or home setups.

The UHD18-EXB400-K is a professional 1x8 HDMI extender splitter designed to transmit high-definition video and audio signals to up to eight displays over long distances using a single CAT6/6a/7 cable per display. Supporting HDMI 2.0 and HDCP 2.2 standards, it delivers resolutions up to 4K@60Hz with 18Gbps bandwidth, and transmits signals up to 394 feet at 4K or 492 feet at 1080p. Leveraging HDBaseT technology, the unit ensures reliable, lossless transmission for demanding AV environments.

The transmitter includes an HDMI loop-out for local monitoring, while built-in audio extraction is available via coaxial and balanced analog outputs. HDR10+ and Dolby Vision pass-through is supported for superior visual performance. Additional features include bi-directional IR control, RS-232 integration, EDID management, and Power over Cable (PoC), requiring power only at the transmitter. With a durable build and easy installation, the UHD18-EXB400-K is ideal for both commercial and residential AV distribution needs.

Note: OREI HDBaseT models are designed to work only with their own matching transmitter and receiver. They are not interchangeable with other OREI HDBaseT models, nor compatible with HDBaseT devices from other brands, due to chipset differences.
For best results, always use the included or recommended pair from the same model.

CONNECTIVITY

Transmitter:	INPUT:	1 × HDMI [Type A, 19-pin female]
	OUTPUT:	1 × HDMI [Type A, 19-pin female]
		8 × HDBaseT [RJ45, 8-pin female]
		1 × Coaxial [RCA]
		1 × L/R [5-pin, phoenix]
	CONTROL:	1 × RS-232 [3-pin Phoenix connector]
		1 × IR IN [3.5mm Stereo Mini-jack]
		1 × IR OUT [3.5mm Stereo Mini-jack]
Receiver:	INPUT:	1 × HDBaseT [RJ45, 8-pin female]
	OUTPUT:	1 × HDMI [Type A , 19-pin female]
		1 × L/R [3.5mm Stereo Mini-jack]
	CONTROL:	1 × RS-232 [3-pin Phoenix connector]
		1 × IR IN [3.5mm Stereo Mini-jack]
		1 × IR OUT [3.5mm Stereo Mini-jack]
		1 × SERVICE [Micro USB, Update port]

PACKAGE CONTENTS

1x Transmitter

8x Receiver

9x IR Blaster cable

9x IR Receiver cable

9x 3-Pin Phoenix Connector

1x 5-Pin Phoenix Connector

18x Mounting ear

1x Power Adapter

User Manual

SUPPORTED CAT CABLES

CAT5e, CAT6, CAT7:

We recommend you use shielded CAT6 cables & High-Quality HDMI Cables for optimum performance

EXTENDING DISTANCE

4K@30HZ:	393 Feet
1080P@60Hz:	492 Feet

VIDEO OUTPUT

Video Bandwidth:	18Gbps
Video Resolutions:	Up to 4K@60Hz

ADDITIONAL FEATURES

CEC:	No
ARC:	No
USB KVM:	No
PoC/PoE:	Yes
IR Control:	Yes
Downmix:	No
Downscale:	No
Over IP:	No
HDBaseT:	Yes
RS-232:	Yes

LOOP-OUT/LOCAL PORT

Has loop out port:	Yes
Number of Loop out ports:	1

AUDIO SUPPORT

HDMI Audio Formats:	LPCM 2.0/2.1/5.1/6.1/7.1, Dolby Digital, Dolby TrueHD, Dolby Digital Plus(DD+), DTS-ES, DTS HD Master, DTS HD-HRA, DTS-X
Coaxial Audio Formats:	PCM2.0, Dolby Digital / Plus, DTS 2.0/5.1
L/R Audio Formats:	PCM 2.0CH

COMPLIANCES

HDMI Compliance	HDMI 2.0b
HDCP Compliance	HDCP 2.2

POWER

Power Consumption:	72W (Max)
Power Supply:	Input: AC 100-240V 50/60Hz
	Output: DC 24V/3.75A

DIMENSIONS & WEIGHT

Transmitter:	Length:	440mm / 17.32in
	Width:	130mm / 5.12in
	Height:	44mm / 1.73in
	Weight:	1.62kg / 3.57lbs
Receiver:	Length:	140mm / 5.51in
	Width:	65mm / 2.56in
	Height:	18mm / 0.71in
	Weight:	246g / 8.68oz

PROPERTIES

Color:	Black
Housing:	Metal Enclosure

WARRANTY

1-Year Manufacturer's Warranty

Quick Setup & Installation guide

UHD18-EXB400-K User Manual Download

UHD18-EXB400-K Specifications Sheet

FAQs

Yes, you can purchase these things directly from us. Please contact us & we will assist you further.

No, this product doesn not extend multiple screens. It will duplicate the input sources to multple outputs.

Yes, you will be able to get a signal beyond the mentioned distance but the quality of the video decreases with increase in the distance and that too when using with shielded CAT6 cable.

Yes, you can implement the daisy chain method.

Both the ends of the CAT cable should be termed as EIA-568B & the cable should be straight & not crossed.

We recommend you to use High-Quality HDMI cables & shielded CAT6 cables.

Yes, you can purchase the additional transmitter from us. Please contact us & we will let you know the price.

Yes, you can purchase the additional receiver from us. Please contact us & we will let you know the price.

No, this product doesn't upscale/downscale the video resolutions.

You can extend the display devices up to 400 Feet when using with a shielded CAT6 cable.

The issue might be with the CAT cable. This might be due to the external interference of the signals & CAT5e has low bandwidth as compared to the CAT6. We recommend you using shielded CAT6 cable.

If the power and link led lights does not illuminate on the RJ45 port of the transmitter and the receiver, then the transmitter & receiver might be dead.

Please contact us so that we can troubleshoot the issue.

You can upgrade the firmware by connecting the PC & this device via RS-232 cable.

Please note that this product only supports the CEC function between HDMI input & HDMI output 1.

No, optical output doesn't supports CEC due to its limitations. CEC will work only with HDMI devices.

HDBaseT is the technology used for long distance transmission of lossless signals, resulting extremely low latency & giving the best picture quality.

In normal extenders, if you extend your signals up to some extend, the quality of the signals will degrade & you may find some latency issues. HDBaseT is the lastest standard which provides extending your signals to the longer distance without degrading the quality of the signals & with 0 latency.

We recommend you using a shielded CAT6 cables for optimum performance.

Our all the extenders supports IR Frequency & the devices using RF frequency will not be compatible with our products.

The IR Blaster/Emitter should be connected to the IR out port on the Transmitter and the IR Receiver should be connected to the IR in on the Receiver.

Here's a quick overview of the IR connection on our extenders: IR Blaster Explained | Use IR with HDMI Extender Kit - Remote Control