What Is the UHD14-EX230-K?
The OREI UHD14-EX230-K is a 4K HDMI extender splitter kit that distributes one HDMI source to up to four remote HDMI displays over CAT6 / CAT7 cable. It also includes HDMI loop out on the Transmitter, allowing a local display to be connected near the source.
The kit includes one Transmitter, four Receivers, mounting ears, machine screws, one power adapter, and a user manual. The HDMI source connects to HDMI IN on the Transmitter, the local display connects to HDMI LOOP OUT on the Transmitter, and each remote display connects to an HDMI OUT port on one Receiver. CAT6 / CAT7 cables connect the Transmitter to each Receiver.
The UHD14-EX230-K supports HDMI 2.0b and HDCP 2.2, with a video bandwidth of 18Gbps. It supports video resolutions up to 4K@60Hz, HDR10, HDR10+, Dolby Vision, HLG, advanced EDID management, HDMI loop out, and Power over Cable so only the Transmitter requires the included power adapter.
The UHD14-EX230-K is useful for retail displays, restaurants, classrooms, houses of worship, offices, conference rooms, AV racks, showrooms, training rooms, control rooms, and installations where one HDMI source needs to be duplicated to multiple displays.
IMPORTANT — UHD14-EX230-K Is a 1x4 HDMI Extender Splitter
The UHD14-EX230-K distributes one HDMI source to up to four remote HDMI displays.
| Function | Support |
| 1 HDMI input | Supported |
| 4 remote HDMI outputs | Supported |
| HDMI loop out at Transmitter | Supported |
| One source to multiple displays | Supported |
| Point-to-point extension only | No |
| Matrix switching | Not supported |
| Extended desktop creation | Not supported |
This product duplicates the same HDMI source across the connected displays. It does not create separate extended screens.
IMPORTANT — Supports 4K@60Hz
The UHD14-EX230-K supports video resolutions up to 4K@60Hz.
| Feature | Support |
| 4K@60Hz | Supported |
| HDMI 2.0b | Supported |
| HDCP 2.2 | Supported |
| Video bandwidth | 18Gbps |
| HDR10 | Supported |
| HDR10+ | Supported |
| Dolby Vision | Supported |
| HLG | Supported |
| Color space | RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0 |
To get 4K@60Hz, the HDMI source, displays, HDMI cables, CAT cable, and source output settings must all support the required signal.
IMPORTANT — Extends up to 230ft Over CAT6 / CAT7
The UHD14-EX230-K supports different transmission distances depending on the resolution.
| Resolution | Maximum Distance |
| 4K@30Hz | Up to 230ft / 70m |
| 4K@60Hz | Up to 197ft / 60m |
For best performance, use high-quality CAT6 / CAT7 cable.
Poor CAT cable, weak terminations, damaged connectors, couplers, wall plates, patch panels, or low-quality cable may cause no video, flickering, signal loss, or unstable 4K performance.
IMPORTANT — Use Direct CAT Cable Connection
Connect each CAT OUT port on the Transmitter directly to the CAT IN port on each Receiver using CAT6 / CAT7 cable.
Do not connect the CAT cable through:
- Network switch
- Router
- Internet network
- LAN switch
- Standard Ethernet network
This is a direct HDMI extender splitter over CAT cable. It is not an AV-over-IP system.
IMPORTANT — Power over Cable Is Supported
The UHD14-EX230-K supports Power over Cable.
| Power Setup | Support |
| Power adapter at Transmitter end | Required |
| Receivers powered through CAT cable | Supported |
| Separate Receiver power normally required | No |
| Included power adapter | DC 12V/2.5A |
Only the Transmitter requires the included power adapter. The Receivers receive power through the CAT cable connection from the Transmitter.
IMPORTANT — HDMI Loop Out Is Supported
The UHD14-EX230-K includes HDMI LOOP OUT on the Transmitter.
| Unit | HDMI Port | Function |
| Transmitter | HDMI IN | Connect HDMI source device |
| Transmitter | HDMI LOOP OUT | Connect local display |
| Receiver | HDMI OUT | Connect remote display |
The HDMI loop out is useful when a display is needed near the HDMI source, such as in an AV rack, control room, equipment room, or source-side display location.
IMPORTANT — EDID Management Is Supported
The UHD14-EX230-K includes EDID DIP switch control on the Transmitter.
EDID helps the HDMI source output a compatible video and audio format for the connected displays.
Use EDID settings when:
- There is no video
- A display shows unsupported format
- Audio format is not working correctly
- Different display models are connected
- The source is outputting a resolution the display cannot support
- You need to force 4K, 1080p, or a specific audio format
| DIP Switch Position | Meaning |
| 1 | Up |
| 0 | Down |
EDID Setting List:
| DIP Setting | EDID Mode |
| 1111 | 4K60 4:4:4, 2.0CH |
| 1110 | 4K60 4:4:4, 5.1CH |
| 1101 | 4K60 4:4:4, 7.1CH |
| 1100 | 4K60 4:4:4 HDR, 2.0CH |
| 1011 | 4K60 4:4:4 HDR, 5.1CH |
| 1010 | 4K60 4:4:4 HDR, 7.1CH |
| 1001 | 4K30, 2.0CH |
| 1000 | 4K30, 5.1CH |
| 0111 | 4K30, 7.1CH |
| 0110 | 1080p, 2.0CH |
| 0101 | 1080p, 5.1CH |
| 0100 | 1080p, 7.1CH |
| 0011 | 1920x1200, 2.0CH |
| 0010 | 1280x800, 2.0CH |
| 0001 | 1024x768, 2.0CH |
| 0000 | Copy Transmitter loop out EDID |
If there are compatibility issues, try changing the EDID setting and power cycling the source and extender.
IMPORTANT — This Duplicates the Same Screen
The UHD14-EX230-K is an HDMI extender splitter.
It can duplicate one HDMI source to multiple displays.
It cannot create separate extended screens from one computer.
| Computer Display Mode | Supported? |
| Duplicate / mirror same screen | Yes |
| Extend desktop as separate screens | No |
For PC extended desktop mode, a multi-output graphics card, docking station, or dedicated multi-display solution is required.
IMPORTANT — Audio Pass-Through Is Supported
The UHD14-EX230-K supports HDMI audio pass-through.
Supported HDMI loop out audio formats include:
| HDMI Loop Out Audio |
| LPCM |
| Dolby Digital |
| Dolby Digital Plus |
| Dolby Digital EX |
| Dolby TrueHD |
| DTS |
| DTS-EX |
| DTS-96/24 |
| DTS High Res |
| DTS-HD Master Audio |
| DSD |
Supported remote end audio formats include:
| Remote End Audio |
| LPCM 2.0 |
| Dolby 5.1 |
| DD+ 7.1 |
| DTS 5.1 |
The connected HDMI source, display, AVR, soundbar, or audio system must also support the selected audio format.
Ports and Panel Layout
| Port / Button / Indicator | Unit | Function |
| Power Switch | Transmitter | Press to power on/off the Transmitter |
| Power LED | Transmitter | Red LED lights when the Transmitter is powered on |
| EDID DIP Switch | Transmitter | Set EDID mode |
| SERVICE | Transmitter | Firmware update port |
| HDMI IN | Transmitter | Connect HDMI source device |
| HDMI LOOP OUT | Transmitter | Connect local display |
| CAT OUT 1–4 | Transmitter | Connect CAT6 / CAT7 cables to Receivers |
| DC 12V | Transmitter | Connect included power adapter |
| HDMI OUT | Receiver | Connect remote display |
| POWER LED | Receiver | Red LED lights when the Receiver is powered on |
| CAT IN | Receiver | Connect CAT6 / CAT7 cable from Transmitter |
Step-by-Step Setup
- Connect the HDMI source device to HDMI IN on the Transmitter.
Examples include a DVD player, Blu-ray player, cable box, streaming device, media player, laptop, desktop PC, DVR, NVR, or HDMI matrix output.
- Connect a local display to HDMI LOOP OUT on the Transmitter if a source-side display is needed.
- Connect CAT6 / CAT7 cable from CAT OUT 1 on the Transmitter to CAT IN on Receiver 1.
- Repeat the CAT cable connection for Receiver 2, Receiver 3, and Receiver 4 as needed.
- Connect each Receiver HDMI OUT to a TV, monitor, projector, or display.
- Set the EDID DIP switch based on the resolution and audio format needed.
- Connect the included DC 12V/2.5A power adapter to the Transmitter.
- Turn on the Transmitter using the power switch.
- Power on the HDMI source and all connected displays.
- Check that the Transmitter Power LED is on.
- Check that each Receiver Power LED is on.
- Test video and audio on the local display and each remote display.
- If video does not display, try a lower source resolution, change the EDID setting, or test with a different CAT cable.
CAT Cable Requirement — Critical
Use high-quality CAT6 / CAT7 cable.
| Requirement | Specification |
| Cable type | CAT6 / CAT7 |
| 4K@30Hz distance | Up to 230ft / 70m |
| 4K@60Hz distance | Up to 197ft / 60m |
| Wiring standard | TIA-568B straight-through |
| Connection | Direct Transmitter-to-Receiver connection |
The manual recommends using straight-through CAT cable with TIA-568B wiring.
| Pin | TIA-568B Wire Color |
| 1 | White / Orange |
| 2 | Orange |
| 3 | White / Green |
| 4 | Blue |
| 5 | White / Blue |
| 6 | Green |
| 7 | White / Brown |
| 8 | Brown |
Poor or incorrectly terminated CAT cable may cause:
- No video
- Flickering
- Black screen
- Receiver not powering on
- 4K@60Hz not working
- Audio dropouts
- Signal loss
- HDMI handshake issues
- Unstable performance
Use direct, properly terminated cable whenever possible.
HDMI Cable Requirement — Critical
Use high-quality HDMI cables, especially for 4K@60Hz.
Poor HDMI cables may cause:
- No picture
- Flickering
- Black screen
- HDR issues
- HDMI source not detected
- HDMI loop out not working
- Receiver HDMI OUT not working
- HDCP handshake issues
- Audio dropouts
For 4K@60Hz, use HDMI cables rated for 18Gbps.
For troubleshooting, test the HDMI source directly with the display before using the extender splitter.
Power Requirement — Critical
The UHD14-EX230-K uses one DC 12V/2.5A power adapter.
| Unit | Power |
| Transmitter | DC 12V/2.5A |
| Receiver | Powered through CAT cable using Power over Cable |
| Power Detail | Value |
| Power supply | DC 12V/2.5A |
| Power consumption | 10.4W max |
| Receiver separate power | Not normally required |
If a Receiver does not power on, check the Transmitter power adapter, CAT cable, CAT termination, and CAT OUT / CAT IN connections.
Understanding the Transmitter
The Transmitter is installed near the HDMI source.
It has:
- Power switch
- Power LED
- EDID DIP switch
- SERVICE firmware update port
- HDMI IN
- HDMI LOOP OUT
- Four CAT OUT ports
- DC 12V power input
The Transmitter receives the HDMI signal from the source, provides HDMI loop out for a local display, and sends the signal to up to four Receivers through CAT6 / CAT7 cable.
Understanding the Receiver
Each Receiver is installed near a remote display.
Each Receiver has:
- HDMI OUT
- POWER LED
- CAT IN
The Receiver receives signal and power through the CAT cable from the Transmitter and outputs HDMI to the connected display.
Understanding the Application Example
The application diagram shows a DVD or Blu-ray player connected to HDMI IN on the Transmitter. A local TV is connected to HDMI LOOP OUT on the Transmitter. Four CAT6 cables connect the Transmitter to four Receivers, and each Receiver connects to a TV using HDMI.
This shows the main use case: distributing one HDMI source to one local display and four remote displays at the same time.
Understanding Power LED
| LED Status | Meaning |
| Transmitter Power LED on | Transmitter is powered on |
| Transmitter Power LED off | Transmitter is not powered on |
| Receiver Power LED on | Receiver is powered through CAT cable |
| Receiver Power LED off | Receiver is not receiving power |
If a Receiver Power LED does not light, check the Transmitter power, CAT cable, cable termination, and CAT port connection.
Supported Video and Audio
The UHD14-EX230-K supports video formats including:
| Supported Video |
| 480i60 |
| 576i50 |
| 480p60 |
| 576p50 |
| 720p50 / 60 |
| 1080i50 / 60 |
| 1080p24 |
| 1080p25 |
| 1080p30 |
| 1080p50 |
| 1080p60 |
| 640x480@60 |
| 1024x768@60 |
| 1280x768@60 |
| 1280x800@60 |
| 1280x1024@60 |
| 1360x768@60 |
| 1440x900@60 |
| 1680x1050@60 |
| 1920x1200@60RB |
| 4K@30Hz |
| 4K@60Hz |
| RGB |
| YCbCr 4:4:4 |
| YCbCr 4:2:2 |
| YUV 4:2:0 |
| HDR10 |
| HDR10+ |
| Dolby Vision |
| HLG |
Supported audio formats include:
| Supported Audio |
| LPCM |
| Dolby Digital |
| Dolby Digital Plus |
| Dolby Digital EX |
| Dolby TrueHD |
| DTS |
| DTS-EX |
| DTS-96/24 |
| DTS High Res |
| DTS-HD Master Audio |
| DSD |
| Dolby 5.1 |
| DD+ 7.1 |
| DTS 5.1 |
Supported Technical Specifications
| Specification | Support |
| Product Type | 1x4 4K HDMI extender splitter over CAT6 / CAT7 |
| HDMI Version | HDMI 2.0b |
| HDCP Version | HDCP 2.2 |
| Video Bandwidth | 18Gbps |
| Maximum Resolution | 4K@60Hz |
| Transmission Distance at 4K@30Hz | Up to 230ft / 70m via CAT6 cable |
| Transmission Distance at 4K@60Hz | Up to 197ft / 60m via CAT6 cable |
| HDR | HDR10, HDR10+, Dolby Vision, HLG |
| Color Space | RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0 |
| Color Depth | 8-bit, 10-bit, 12-bit depending on resolution and color format |
| HDMI Loop Out | Supported on Transmitter |
| EDID Management | Supported using DIP switch |
| Power over Cable | Supported |
| Transmitter Input | HDMI IN, DC 12V |
| Transmitter Output | HDMI LOOP OUT, 4 x CAT OUT |
| Receiver Input | CAT IN |
| Receiver Output | HDMI OUT |
| Firmware Update Port | USB-C SERVICE port on Transmitter |
| Power Supply | DC 12V/2.5A |
| Power Consumption | 10.4W max |
| Housing | Metal enclosure |
| Color | Black |
| Transmitter Dimensions | 150mm x 70mm x 24.5mm / 5.9in x 2.75in x 0.96in |
| Receiver Dimensions | 81mm x 49mm x 25mm / 3.18in x 1.92in x 0.98in |
| Transmitter Weight | 302g / 10.65oz |
| Receiver Weight | 116g / 4.09oz |
| Operating Temperature | 0°C to 40°C / 32°F to 104°F |
| Storage Temperature | -20°C to 60°C / -4°F to 140°F |
| Operating Humidity | 20%–80% RH, non-condensing |
| Storage Humidity | 10%–90% RH, non-condensing |
| ESD Protection | ±8kV air-gap discharge, ±4kV contact discharge |
What Source Devices Is the UHD14-EX230-K Compatible With?
The UHD14-EX230-K is compatible with HDMI source devices such as:
- DVD players
- Blu-ray players
- Cable boxes
- Satellite receivers
- Streaming devices
- Media players
- Desktop PCs
- Laptops with HDMI output
- DVRs
- NVRs
- Game consoles
- HDMI matrix outputs
- HDMI switch outputs
- AV receivers with HDMI output
The source must output a supported HDMI resolution up to 4K@60Hz.
What Displays Is the UHD14-EX230-K Compatible With?
The UHD14-EX230-K can connect to HDMI displays such as:
- 4K TVs
- 1080p TVs
- Monitors
- Projectors
- Commercial displays
- Classroom displays
- Conference room displays
- Retail displays
- Digital signage displays
- Restaurant displays
- Bar displays
- Remote display locations
For 4K@60Hz, the display must support 4K@60Hz input.
Frequently Asked Questions
Q: What is the OREI UHD14-EX230-K used for?
A: It is used to distribute one HDMI source to up to four remote HDMI displays over CAT6 / CAT7 cable, with an additional HDMI loop out for a local display.
Q: Does the UHD14-EX230-K support 4K@60Hz?
A: Yes. It supports video resolutions up to 4K@60Hz.
Q: Does it support 8K?
A: No. It supports up to 4K@60Hz.
Q: Does it support 4K@120Hz?
A: No. It does not support 4K@120Hz.
Q: What HDMI version does it support?
A: It supports HDMI 2.0b.
Q: What HDCP version does it support?
A: It supports HDCP 2.2.
Q: What video bandwidth does it support?
A: It supports 18Gbps video bandwidth.
Q: Does it support HDR?
A: Yes. It supports HDR10, HDR10+, Dolby Vision, and HLG.
Q: How far can it extend HDMI?
A: It extends HDMI up to 230ft / 70m at 4K@30Hz and up to 197ft / 60m at 4K@60Hz over CAT6 cable.
Q: What CAT cable should I use?
A: Use CAT6 or CAT7 cable with straight-through TIA-568B wiring.
Q: Can I connect it through a network switch?
A: No. It requires a direct CAT cable connection between the Transmitter and each Receiver.
Q: Is this AV over IP?
A: No. It is a direct HDMI extender splitter over CAT cable.
Q: Does it support Power over Cable?
A: Yes. The Receivers are powered through the CAT cable from the Transmitter.
Q: Do the Receivers need separate power adapters?
A: No. The included power adapter connects to the Transmitter only.
Q: What power adapter does it use?
A: It uses a DC 12V/2.5A power adapter.
Q: Does the Transmitter have HDMI loop out?
A: Yes. The Transmitter has HDMI LOOP OUT for connecting a local display.
Q: What is HDMI loop out used for?
A: HDMI loop out allows a local display to be connected near the HDMI source while the same signal is also sent to the remote displays.
Q: Does it support EDID management?
A: Yes. The Transmitter includes EDID DIP switch control.
Q: What does DIP setting 0000 do?
A: DIP setting 0000 copies the Transmitter loop out EDID.
Q: Can each display show different content?
A: No. This product duplicates the same HDMI source to all connected displays.
Q: Can I use this to extend my PC display to multiple locations?
A: You can duplicate the PC screen to multiple locations, but it will not create extended desktop mode.
Q: Can I connect only one or two Receivers instead of all four?
A: Yes. You can use only the number of Receiver outputs needed.
Q: Does it support audio pass-through?
A: Yes. It supports HDMI audio pass-through.
Q: What audio formats are supported at the remote end?
A: The remote end supports LPCM 2.0, Dolby 5.1, DD+ 7.1, and DTS 5.1.
Q: Does it support Dolby Vision?
A: Yes. Dolby Vision is listed as supported.
Q: Does it support Dolby Atmos?
A: Dolby Atmos is not listed in the manual.
Q: Does it support RS-232?
A: RS-232 is not listed for this model.
Q: Does it support IR control?
A: IR control is not listed for this model.
Q: Does it support audio extraction?
A: Audio extraction is not listed for this model.
Q: What does the SERVICE port do?
A: The SERVICE port is used for firmware updates.
Q: What should I do if there is no video output?
A: Try a lower resolution from the source device, try changing the CAT cable, try changing the EDID settings, and check if HDMI LOOP OUT on the Transmitter has the same issue.
Q: What should I do if 4K@60Hz does not work?
A: Use high-quality HDMI cables, use CAT6 / CAT7 cable within the supported distance, confirm the source and display support 4K@60Hz, and test with a lower resolution.
Q: What should I do if a Receiver does not power on?
A: Check the Transmitter power adapter, CAT cable, CAT termination, CAT OUT port, and Receiver CAT IN port.
Q: Does the UHD14-EX230-K need external power?
A: Yes. Connect the included DC 12V/2.5A power adapter to the Transmitter. The Receivers are powered through CAT cable using Power over Cable.
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