What Is the UHD-EX165H-K?
The OREI UHD-EX165H-K is an HDMI 2.0 extender kit that sends HDMI video, audio, and one-way IR control over a single CAT6 cable across long distances, up to 164 ft (50 meters).
It is useful for setups where the HDMI source and the display are far apart and a single HDMI cable cannot reach, such as a media cabinet in one room and a TV or projector in another. Instead of running long, unreliable HDMI cables, the UHD-EX165H-K uses a Transmitter and a Receiver connected by one CAT6 cable to carry the signal.
The kit includes two units that work as a pair:
- Transmitter: captures the HDMI source signal and sends it over the CAT6 cable. It also provides an HDMI loop output for a local display
- Receiver: receives the signal and outputs it to the remote display
The UHD-EX165H-K supports resolutions up to 4K2K at 60Hz with RGB or YCbCr 4:4:4 and full 18Gbps bandwidth, and is HDMI 2.0, HDCP 2.2, HDCP 1.4, and DVI 1.0 compliant. It passes through HDR, supports DTS-HD and Dolby TrueHD audio, and includes one-way IR pass-through for source control along with an EDID copy DIP switch on the Transmitter.
IMPORTANT — The UHD-EX165H-K Is a Transmitter and Receiver Kit
The UHD-EX165H-K is sold and used as a matched pair. The Transmitter and the Receiver are connected to each other using a single CAT6 cable.
This is especially useful when:
- Your HDMI source and display are in different rooms or locations
- A standard HDMI cable cannot reach between the source and the display
- You want a clean, single-cable run between two locations
- You want to control the source from the display location using an IR remote
The kit is powered by a single 12V/1A adapter at the Transmitter end, and a connection signal indicator on each unit lights up when the two units are passing a signal.
IMPORTANT — IR Control Is One-Way (Source Control Only)
The UHD-EX165H-K supports one-way IR pass-through, which lets you control the source device from the display location.
An IR remote signal received at the Receiver (IR IN) is sent across the CAT6 cable and emitted by the IR Blaster at the Transmitter (IR OUT), so you can point your source remote at the Receiver location and control a source sitting next to the Transmitter.
This is different from a bi-directional IR extender. The UHD-EX165H-K does not pass IR from the Transmitter side back to the Receiver side.
IMPORTANT — The HDMI Loop Output Is for a Local Display
The Transmitter includes an HDMI loop output (HDMI OUT) in addition to the HDMI input.
This loop output lets you connect a second, local display at the Transmitter location that shows the same source being sent to the remote Receiver. It passes the input signal through for local monitoring rather than switching sources.
Ports and Panel Layout
The UHD-EX165H-K kit has two units. The Transmitter sits near your HDMI source, and the Receiver sits near your remote display.
Transmitter
| Port / LED / Switch | Location | Function |
| SERVICE | Transmitter | Micro-USB port used for firmware updates |
| EDID DIP switch (TX / RX) | Transmitter | Selects which display the source copies its EDID from. TX copies the EDID of the display on the Transmitter loop output. RX copies the EDID of the display on the Receiver end |
| IR OUT | Transmitter | Connect the included wideband IR Blaster cable to control the source device |
| CAT OUT | Transmitter | Connect a CAT6 cable. The other end connects to the CAT IN port on the Receiver |
| Connection Signal indicator | Transmitter | Lights up when the Transmitter and Receiver are passing a signal |
| Power indicator | Transmitter | Lights up when the Transmitter is powered on |
| HDMI IN | Transmitter | Connect an HDMI source device such as a Blu-ray player or game console |
| HDMI OUT | Transmitter | HDMI loop output for a local display |
| DC 12V | Transmitter | Connect the included 12V/1A power adapter |
Receiver
| Port / LED | Location | Function |
| SERVICE | Receiver | Micro-USB port used for firmware updates |
| IR IN | Receiver | Connect the included wideband IR Receiver cable to receive the source remote signal |
| CAT IN | Receiver | Connect a CAT6 cable. The other end connects to the CAT OUT port on the Transmitter |
| Connection Signal indicator | Receiver | Lights up when the Transmitter and Receiver are passing a signal |
| Power indicator | Receiver | Lights up when the Receiver is powered on |
| HDMI OUT | Receiver | Connect the remote display, such as a TV or projector |
Step-by-Step Setup
- Place the Transmitter near your HDMI source device and the Receiver near your remote display.
- Run a single CAT6 cable from the CAT OUT port on the Transmitter to the CAT IN port on the Receiver.
- Connect your HDMI source to the HDMI IN port on the Transmitter.
- If you want a local display at the Transmitter location, connect it to the HDMI OUT loop port on the Transmitter.
- Connect your remote display to the HDMI OUT port on the Receiver.
- To control the source from the display location, connect the included IR Receiver cable to the IR IN port on the Receiver and the IR Blaster cable to the IR OUT port on the Transmitter.
- Set the EDID DIP switch on the Transmitter to TX or RX depending on which display you want the source to match.
- Connect the included 12V/1A power adapter to the DC 12V port on the Transmitter, then plug it into a power outlet.
- Power on the source and the display, then confirm that the connection signal indicators are lit on both units and that video and audio are working.
Cable Requirement — Important
The UHD-EX165H-K uses a single CAT6 cable between the Transmitter and the Receiver.
- Use a quality CAT6 cable for the run, up to 164 ft (50 meters)
- Use quality HDMI cables between the extender and your source or display
A solid CAT6 cable within the rated distance gives the most reliable 4K performance. If you see signal dropouts, check the cable run and confirm the connection signal indicators are lit at both ends.
Understanding EDID Copy (TX / RX Switch)
The Transmitter includes an EDID DIP switch that controls which display the source device matches its output to. EDID is the information a display shares about the resolutions and audio formats it supports.
In the TX position, the source copies the EDID of the display connected to the HDMI loop output on the Transmitter, so its output matches that local display. In the RX position, the source copies the EDID of the display connected to the Receiver end, so its output matches the remote display. Choose the position that matches the display you want to optimize for.
Understanding One-Way IR Control
The UHD-EX165H-K includes one-way IR pass-through so you can control your source device from the display location. The included wideband IR Receiver cable connects to the IR IN port on the Receiver, and the IR Blaster cable connects to the IR OUT port on the Transmitter.
When you point your source remote at the IR Receiver near the display, the signal travels across the CAT6 cable and is emitted by the IR Blaster next to the source, allowing remote control even though the source is in another location.
What Sources Is the UHD-EX165H-K Compatible With?
The UHD-EX165H-K works with HDMI source devices that output a standard HDMI signal, including 4K and HDR sources.
It can be used with:
- 4K and HDR Blu-ray players
- Streaming boxes and set-top boxes
- Game consoles
- Computers and laptops with HDMI output
- AVRs and other HDMI sources
The extender is HDMI 2.0, HDCP 2.2, HDCP 1.4, and DVI 1.0 compliant, and passes through HDR.
What Displays Is the UHD-EX165H-K Compatible With?
The UHD-EX165H-K outputs to any display with a standard HDMI input, at both the Receiver and the Transmitter loop output.
It can be used with:
- 4K and HDR TVs
- 4K projectors
- Standard HDMI monitors and displays
For full 4K2K at 60Hz, the display should support that resolution.
Frequently Asked Questions
Q: What is the OREI UHD-EX165H-K used for?
A: The UHD-EX165H-K is used to send 4K HDMI video, audio, and one-way IR control over a single CAT6 cable across long distances up to 164 ft, using a matched Transmitter and Receiver. It is ideal when the source and display are in different locations.
Q: How far can the UHD-EX165H-K transmit a signal?
A: It can transmit up to 164 ft (50 meters) over a single CAT6 cable, at resolutions up to 4K2K at 60Hz 4:4:4.
Q: Is the IR control bi-directional?
A: No. The UHD-EX165H-K supports one-way IR for source control only. A remote signal received at the Receiver is sent to the Transmitter and emitted near the source. It does not pass IR from the Transmitter side back to the Receiver side.
Q: What is the HDMI loop output for?
A: The HDMI OUT loop port on the Transmitter lets you connect a second, local display that shows the same source being sent to the remote Receiver.
Q: What does the EDID TX / RX switch do?
A: It selects which display the source matches its output to. TX copies the EDID of the display on the Transmitter loop output, and RX copies the EDID of the display on the Receiver end. Choose the position for the display you want to optimize for.
Q: Do I need to power both units?
A: The kit is powered by a single 12V/1A adapter connected to the DC 12V port on the Transmitter.
Q: What resolutions and formats are supported?
A: It supports resolutions up to 4K2K at 60Hz with RGB or YCbCr 4:4:4, 18Gbps bandwidth, HDR pass-through, and audio formats including DTS-HD and Dolby TrueHD.
Q: What kind of cable do I need between the Transmitter and Receiver?
A: Use a quality CAT6 cable for the run up to 164 ft (50 meters). Use quality HDMI cables between the extender and your source or display.
Q: Why am I not getting video on my display?
A: Confirm the connection signal indicators are lit on both units. If not, check or replace the CAT6 cable and make sure both ends are properly seated. You can also try the other EDID switch position or different HDMI cables.
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