OREI UHD-EXB400R-K 4K HDMI over Ethernet Extender Balun (HDBaseT) up to 400 Ft with IR, RS-232 & PoC
Product description
The essentials
If you need a longer HDMI run without turning your video into a slideshow, the OREI UHD-EXB400R-K is built for long-range “HDMI over Ethernet” style setups. On paper, it’s aiming at one specific goal: carry 4K HDMI content over a CAT5e/6/7 cable up to 400 feet while keeping latency low.
You also get more than just video. This extender supports bidirectional IR so you can send remote commands back and forth, includes HDMI control features like CEC, and offers RS-232 command control for more technical installs. It’s the kind of device people choose when they’re building a clean, professional-looking AV layout—like extending a signal to a distant TV or projector—without relying on line-of-sight tricks.
What it does (and why that matters)
This is a transmitter + receiver extender kit designed to move HDMI video/audio across a LAN-style cable. The key part is HDBaseT technology, which is marketed here as “lossless and lag-free video transmission,” and the specs listed include UHD 4K/60Hz and support for advanced video formats.
Depending on your source and display, you can expect support for: - HDR formats including HDR10+ and Dolby Vision - 4:4:4 content (listed as YUV 4:4:4) - Higher bandwidth operation (listed as 18Gbps)
One practical example: imagine your media source (set-top box, streamer, or media player) is in a rack near a server closet, but the TV is much farther down a hallway or in another room. With this kind of extender, you’re not swapping to a weaker “HDMI cable run” approach—you’re using structured cable for a more reliable long-distance installation.
Where it shines in day-to-day use
The value here isn’t only distance—it’s control and setup flexibility.
The bidirectional IR control is a big deal for real-world living spaces. It means the source device can “recognize remote commands” coming from the remote location, and vice versa for controlling the remote display from the source side. If you’ve ever had to get up to change inputs or adjust playback because the remote can’t reach the equipment, this is the sort of feature that directly reduces that annoyance.
Then there’s HDMI Loop-out on the transmitter side, which can be useful if you want the local display connected at the source side while still sending video long-distance. Add in CEC support, and you’re looking at an extender designed to behave more like a full HDMI path—not just a dumb pipe.
Key specs you should care about
Tech specs
- Supported video: UHD 4K/60Hz, plus 2K@60Hz
- Color/content: YUV 4:4:4 support
- HDR: HDR, HDR10+, Dolby Vision
- Bandwidth: 18Gbps (as listed)
- HDMI standards: HDMI 2.0a and HDCP 2.2 (as listed)
- Audio formats: DTS-HD, Dolby TrueHD, and 7.1ch digital audio (as listed)
- Distance: up to 400 ft over CAT5e/6/7 (as listed)
- Control: bidirectional IR control, CEC, RS-232 command control port
- Power: PoC (Power over Cable)
- Loop-out: HDMI loop-out via transmitter unit
- Includes: 1x HDMI sender, 1x HDMI receiver, 1x power adapter (PoC), 1x IR kit, mounting ears, instructions manual
PoC and power: a useful shortcut, with one rule
Power over cable (PoC) is often a “nice on paper, critical in practice” feature because it reduces the number of power adapters you need to manage across rooms. In the details here, the setup note matters: you should only use one power adapter at either the transmitter side or the receiver side to power both units.
That’s straightforward, but it does mean planning the installation location. If you’re thinking about powering both ends “just to be safe,” you’ll want to follow the included guidance instead.
Compatibility caveat you shouldn’t skip
This is where the UHD-EXB400R-K can feel a bit restrictive: the note provided says OREI HDBaseT models are designed to work only with their own matching transmitter and receiver, and they are not interchangeable with other OREI HDBaseT models or compatible with HDBaseT devices from other brands due to chipset differences.
In other words, if you’re mixing equipment, you may hit issues even if the marketing says “HDBaseT.” Worth considering if you already own other extenders—but you may want to avoid it and stick to the recommended pair from the same model.
Is it worth it?
Worth considering if you’re installing a longer HDMI link (up to the listed range) and you care about more than just video—specifically HDR support, 4:4:4 capability (as listed), and remote control behavior through bidirectional IR. It makes sense if you’re building a clean cable-based AV setup where distance and control both matter.
It might not be a great match if you’re trying to mix it with other brands’ HDBaseT extenders or you plan to swap parts across different OREI HDBaseT models. Also, if your goal is simply a short run and you don’t need IR/RS-232/CEC-style control, you may not benefit enough from the added complexity.
Not perfect, but pretty targeted: this extender is more “installation and performance features” than “set-and-forget convenience,” and it rewards careful pairing and planning.
Quick answers (mini FAQ)
Does it support remote control at the far end?
Yes—bidirectional IR control is listed, so remote commands can be recognized from the remote display side and sent back as supported by the IR setup.
What cable types can it use?
It’s listed for CAT5e/6/7 cable.
How does power over cable work here?
PoC is supported, and the guidance says to use only one power adapter at either the transmitter side or the receiver side to power both units.
Can I mix this with other HDBaseT brands?
According to the note, HDBaseT models here are not compatible with HDBaseT devices from other brands due to chipset differences, so matching is important.
What’s included in the box?
The included items listed are: instructions manual, HDMI sender, HDMI receiver, a PoC power adapter, an IR kit, and mounting ears.