OREI UHD-EX165H-K 4K HDMI Extender over Cat6/Cat7
A solid 4K60 HDMI over Cat6 kit for one remote screen, with 1440p and HDR format limits.
The short version
- People running a TV or projector to a patio, garage, basement or another room from one source
- Anyone who already has, or can pull, a single Cat6 cable between the two spots
- You need 2560 x 1440 output from a PC
- You need Dolby Vision or HDR10+ passed through
- You need CEC, RS-232 or audio sent back from the TV to a receiver
What owners like
- Retailers describe it as a compact, metal bodied kit that handles 4K60 HDR over a single Cat cable
- Only one power adapter is needed for both ends
Common complaints
- A reported blank screen for several seconds when the second, loop out display is switched on
- Picture quality can degrade at or beyond rated distance, and Cat5e is not recommended
- No 1440p support, which matters for some PC setups
Based on Thin. The OREI product page, the Amazon listing, two authorized reseller pages (Bombay Electronics and Wellbots) and a single user review on eBay. Little independent owner feedback was found, and no owner reviews were quoted from Amazon..
Research scores
Scored from the maker's specs and what owners report. Drew's own notes and photos will refine these.
Ownership
- Nov 2025
First bought.
Drew's hands-on notes for this product are on the way. Long-term updates will be added to this timeline.
What it does
A transmitter and receiver pair that sends 4K at 60Hz HDMI video, audio and remote control signals up to 165 ft over one Ethernet cable.
- HDMI loop out on the transmitter so a second screen can sit next to the source
- IR blaster and receiver cables let you change channels from the far room
- Power over cable means only the transmitter end needs an outlet
- EDID copy support to help the source pick a format the far display accepts
- Passes Dolby TrueHD, DTS-HD Master Audio and other common audio formats
A good fit for putting a TV or projector far from its source, such as a garage, patio or another room, using a single Cat6 run and one power adapter. The trade-offs are no support for 2560 x 1440, no CEC or RS-232, HDR10 only, and a short one year warranty, and the maker leans heavily on shielded, properly terminated cable for full distance.
How it compares
Specs
- Model
- UHD-EX165H-K
- Max resolution
- 4K at 60Hz, 4:4:4
- Distance
- Up to 165 ft (50 m) at 4K60 over Cat6/Cat7
- Bandwidth
- 18Gbps, HDMI 2.0, HDCP 2.2
- HDR
- HDR10; no HDR10+ or Dolby Vision
- Control
- One way IR, receiver end to source
- Power
- Single 12V/1A adapter with power over cable; transmitter draws up to 6.36W
- Housing
- Metal enclosure, about 101.5 x 69.3 x 13.3 mm per unit
- Warranty
- 1 year, plus lifetime technical support
Worth knowing
- Rated for 32 to 104 degrees F and 20 to 90 percent humidity, non condensing, so the units should stay indoors.
- Does not support 2560 x 1440 resolution.
Questions
Does the OREI UHD-EX165H-K work over a network switch or patch panel?
It is built for a direct cable run between transmitter and receiver. The maker calls for straight EIA-568B termination on both ends and recommends shielded Cat6.
Can it use Cat5e cable?
It can, but resellers note Cat5e is not recommended because of bandwidth limits and interference.
Does it need power at both ends?
No. One 12V adapter at the transmitter powers both units through the cable.
Does it support Dolby Vision?
No. OREI lists HDR10 support only, without HDR10+ or Dolby Vision.
Sources
- OREI: 4K HDMI Extender Over Cat6/7 Cable, Up to 165 Ft (UHD-EX165H-K)
- Amazon.com: OREI HDMI Extender UltraHD Over Single Cat6/Cat7 Cable, 4K@60Hz with HDR and IR Control, Up to 165 ft
- Bombay Electronics: OREI UHD-EX165H-K 4K HDMI Extender
- Wellbots: 4K HDMI Extender Over Cat6/7 Cable up to 165 ft (UHD-EX165H-K)
- eBay: Orei UHD-EX165H-K HDMI 2.0 over single Cat6 with IR control
Researched 2026-10-02. We bought this product; our page is built from the maker's details and what owners report across reviews and forums. We never copy Amazon customer reviews.
