What Is the UHD-FO10H-K?
The OREI UHD-FO10H-K is a 4K60 HDMI over Fiber Extender designed to extend HDMI signals over long distances using fiber optic cable.
It supports HDMI signal transmission up to 10km over single-mode LC fiber optic cable. It supports video resolutions up to 4K2K@50/60Hz RGB 4:4:4, HDMI 2.0b / 1.4b, HDCP 2.2, 18Gbps video bandwidth, HDR10, HDR10+, Dolby Vision, HLG, 3D video, and wide HDMI audio format support.
The system includes a Transmitter and Receiver. The Transmitter connects to the HDMI source device, and the Receiver connects to the HDMI display. The two units connect together using LC fiber optic cable.
The UHD-FO10H-K also supports EDID transmission from the Receiver to the Transmitter, EDID lock control, status LEDs for troubleshooting, and USB-C power input / firmware update ports on both units.
The UHD-FO10H-K is useful for commercial AV installations, conference rooms, classrooms, control rooms, security monitoring, digital signage, long-distance HDMI runs, projector installations, and professional AV environments where HDMI needs to be extended over fiber.
IMPORTANT — UHD-FO10H-K Is an HDMI over Fiber Extender
The UHD-FO10H-K extends HDMI using fiber optic cable.
| Function | Support |
| HDMI over fiber extension | Supported |
| Transmitter and Receiver kit | Supported |
| Single-mode fiber transmission | Supported |
| Multi-mode OM4 fiber transmission | Supported with shorter distance |
| Up to 10km distance | Supported over single-mode fiber |
| Up to 300m distance | Supported over multi-mode OM4 fiber |
| 4K@60Hz 4:4:4 | Supported |
| EDID transmission | Supported |
| EDID lock control | Supported |
| HDMI switching | Not supported |
| HDMI splitting | Not supported |
| HDMI matrix routing | Not supported |
| USB KVM control | Not listed |
This product is not an HDMI switch, splitter, matrix, or KVM extender.
It is designed to extend one HDMI source to one HDMI display over fiber optic cable.
IMPORTANT — Transmission Distance Depends on Fiber Type
The maximum transmission distance depends on the fiber cable type.
| Fiber Type | Maximum Distance |
| Single-mode LC fiber optic cable | Up to 10km |
| Multi-mode OM4 LC fiber optic cable | Up to 300m |
For the longest and most stable installation, use single-mode LC fiber optic cable.
Multi-mode OM4 fiber can be used, but the distance is limited to 300m.
IMPORTANT — Supports 4K2K@50/60Hz 4:4:4
The UHD-FO10H-K supports high-bandwidth HDMI video.
| Video Feature | Support |
| Maximum video resolution | 4K2K@50/60Hz RGB 4:4:4 |
| HDMI compliance | HDMI 2.0b / 1.4b |
| HDCP compliance | HDCP 2.2 |
| Video bandwidth | 18Gbps |
| 4096x2160p60 / p50 | Supported |
| 3840x2160p60 / p50 / p30 / p25 | Supported |
| 1920x1200p60RB | Supported |
| 1920x1080p60 / p50 | Supported |
| 1360x768p60 | Supported |
| 1280x800p60 | Supported |
| 1280x720p60 / p50 | Supported |
| 1024x768p60 | Supported |
| VESA standard resolutions | Supported |
To get 4K60 performance, the HDMI source, HDMI display, HDMI connectors, fiber cable, and SFP+ fiber module connection must all support the required signal.
IMPORTANT — HDR10, HDR10+, Dolby Vision, and HLG Are Supported
The UHD-FO10H-K supports several HDR formats.
| HDR Format | Support |
| HDR10 | Supported |
| HDR10+ | Supported |
| Dolby Vision | Supported |
| HLG | Supported |
For HDR to work correctly, the HDMI source, display, HDMI signal format, and content must all support the selected HDR format.
IMPORTANT — 18Gbps Video Bandwidth Is Supported
The UHD-FO10H-K supports 18Gbps HDMI bandwidth.
| HDMI Feature | Support |
| Video bandwidth | 18Gbps |
| 4K60 4:4:4 | Supported |
| 8-bit / 10-bit / 12-bit color depth | Supported |
| RGB | Supported |
| YCbCr 4:4:4 | Supported |
| YCbCr 4:2:2 | Supported |
| YUV 4:2:0 | Supported |
Use a source and display combination that supports the intended HDMI signal format.
IMPORTANT — Wide HDMI Audio Format Support
The UHD-FO10H-K supports multiple HDMI audio formats.
| HDMI Audio Format | Support |
| LPCM | Supported |
| Dolby Digital / Plus / EX | Supported |
| Dolby TrueHD | Supported |
| Dolby Atmos | Supported |
| DTS | Supported |
| DTS-EX | Supported |
| DTS-96/24 | Supported |
| DTS High Res | Supported |
| DTS-HD Master Audio | Supported |
| DTS:X | Supported |
The audio passes through HDMI from the source side to the display side.
This model does not list a separate analog audio output.
IMPORTANT — EDID Transmission Is Supported from Receiver to Transmitter
The UHD-FO10H-K supports EDID transmission from the Receiver to the Transmitter.
| EDID Feature | Support |
| EDID transmission from Receiver to Transmitter | Supported |
| EDID lock control | Supported |
| EDID copied from Receiver to Transmitter | Default behavior |
| Fallback EDID | 1080P SDR, 2CH if no valid RX EDID is detected |
This helps the HDMI source read the display capability through the fiber extender system.
If the source outputs the wrong resolution or no signal, check the connected display, EDID lock state, and power cycle the HDMI source after changes.
IMPORTANT — EDID Lock Control Is Built into the Transmitter
The Transmitter includes an EDID Lock button inside the unit.
| EDID Lock Status | Meaning |
| Light off | EDID is unlocked and can copy EDID on Receiver or load user-defined EDID through the upper computer |
| Light on | EDID is locked and the EDID data cannot be changed |
The manual notes that EDID is unlocked by default.
When unlocked, EDID is copied from the Receiver to the Transmitter.
If no valid EDID is detected on the Receiver, the EDID is set to 1080P SDR, 2CH.
To lock or unlock the EDID, use a needle-shaped tool to press the EDID Lock button inside the Transmitter.
Important Note About Included Fiber Modules
All OREI Fiber Optic Extenders include Simplex (Single-Strand) fiber modules by default, which support both Single-Mode (OS2) and Multimode (OM3/OM4) fiber optic cables.
If you prefer to use Duplex (Two-Strand) fiber cables, you will need to replace the included modules with 10G SFP Duplex fiber modules with 850nm Wavelength or more.
IMPORTANT — No HDMI Loop Output Is Listed
The UHD-FO10H-K is a compact HDMI over fiber extender.
| Feature | Support |
| Transmitter HDMI input | Supported |
| Receiver HDMI output | Supported |
| HDMI loop output | Not listed |
| Local monitor output on Transmitter | Not listed |
If a local monitor is required near the HDMI source, use a separate HDMI splitter before the Transmitter or choose a model that specifically includes HDMI loop output.
IMPORTANT — USB-C Ports Are for Power and Firmware Update
Both units include a USB-C DC 5V port.
| USB-C Function | Support |
| DC 5V power input | Supported |
| Firmware update | Supported |
| USB KVM | Not listed |
| USB data extension | Not listed |
The USB-C port is used to power the unit and can also be used for firmware update.
The included USB cables are for power / service connection, not for USB keyboard, mouse, storage, webcam, or printer extension.
IMPORTANT — External USB 5V Power Is Required
The UHD-FO10H-K uses USB 5V power.
| Power Feature | Specification |
| Power supply | USB 5V |
| Transmitter power input | DC 5V through USB-C |
| Receiver power input | DC 5V through USB-C |
| Transmitter power consumption | 3.2W max |
| Receiver power consumption | 2.2W max |
| USB cables included | 2 x USB Type-A to Type-C cables |
Connect power to both the Transmitter and Receiver.
If either unit does not power on, check the USB power source, USB cable, and DC 5V USB-C port.
Ports and Panel Layout
Transmitter Panel
| Port / Button / Indicator | Function |
| HDMI connector | Connects to HDMI source device such as DVD player or PC |
| POWER LED | Green LED is always on when the Transmitter is powered on |
| LINK LED | Shows fiber optic connection and HDMI input signal status |
| DC 5V | USB-C DC 5V/1A power input; also used for firmware update |
| FIBER | Fiber optic SFP port; connects to Receiver FIBER port using LC fiber cable |
| EDID Lock button | Press to lock or unlock EDID on the Transmitter |
| EDID Lock LED | Shows whether EDID is locked or unlocked |
Receiver Panel
| Port / Indicator | Function |
| HDMI connector | Connects to HDMI display device such as TV or monitor |
| POWER LED | Green LED is always on when the Receiver is powered on |
| LINK LED | Shows fiber optic connection and HDMI output signal status |
| DC 5V | USB-C DC 5V/1A power input; also used for firmware update |
| FIBER | Fiber optic SFP port; connects to Transmitter FIBER port using LC fiber cable |
Understanding the LED Indicators
Transmitter LINK LED
| LED Status | Meaning |
| Off | Transmitter and Receiver are not connected |
| Red on | Transmitter and Receiver are connected, but there is no input signal |
| Blue on | Transmitter and Receiver are connected, and the input signal has HDCP |
| Blue flashing | Transmitter and Receiver are connected, but the input signal is without HDCP |
Receiver LINK LED
| LED Status | Meaning |
| Off | Transmitter and Receiver are not connected |
| Red on | Transmitter and Receiver are connected, but there is no signal |
| Blue on | Transmitter and Receiver are connected, and the output signal has HDCP |
| Blue flashing | Transmitter and Receiver are connected, but the output signal is without HDCP |
Power LED
| LED Status | Meaning |
| Green on | Unit is powered on |
Use these LEDs first when troubleshooting power, fiber connection, HDMI input signal, HDMI output signal, or HDCP behavior.
Step-by-Step Setup
- Place the Transmitter near the HDMI source device.
- Place the Receiver near the HDMI display device.
- Connect the Transmitter HDMI connector to the HDMI source.
Examples include a PC, laptop, Blu-ray player, DVD player, streaming device, game console, media player, cable box, satellite receiver, HDMI switch output, or HDMI matrix output.
- Connect the Receiver HDMI connector to the HDMI display.
Examples include a TV, monitor, projector, commercial display, or AV receiver input.
- Connect the LC fiber optic cable between the Transmitter FIBER port and Receiver FIBER port.
- Use single-mode LC fiber for up to 10km transmission.
- Use multi-mode OM4 LC fiber only when the distance is 300m or less.
- Connect one included USB Type-A to Type-C cable to the Transmitter DC 5V port and a suitable USB 5V power source.
- Connect the second included USB Type-A to Type-C cable to the Receiver DC 5V port and a suitable USB 5V power source.
- Power on the HDMI source and HDMI display.
- Confirm the POWER LEDs on both units are green.
- Confirm the LINK LED shows connection status.
- Confirm video appears on the display.
- If there is no video or flickering, check HDMI and fiber connections, test with a shorter fiber run, and try lowering the source resolution.
Fiber Cable Requirement — Critical
Use the correct fiber cable for the installation distance.
| Fiber Requirement | Specification |
| Connector | LC fiber optic cable |
| Fiber module | 10G SFP+ module |
| Single-mode fiber distance | Up to 10km |
| Multi-mode OM4 fiber distance | Up to 300m |
| Recommended for long distance | Single-mode LC fiber |
Poor or incompatible fiber cable may cause:
- No video signal
- Flickering output
- LINK LED off
- LINK LED red
- Intermittent display
- HDMI signal dropouts
- HDCP handshake issues
- Display not detecting signal
For troubleshooting, use single-mode fiber cable, test with a shorter fiber run, and inspect the LC fiber connectors.
HDMI Requirement — Critical
Use HDMI source and display devices that support the required resolution.
| HDMI Requirement | Specification |
| HDMI version | HDMI 2.0b / 1.4b |
| HDCP | HDCP 2.2 |
| Video bandwidth | 18Gbps |
| Maximum video | 4K2K@50/60Hz 4:4:4 |
If there is no picture:
- Confirm the HDMI source is powered on.
- Confirm the HDMI display is on the correct input.
- Try a lower resolution from the media source.
- Confirm the source and display support the selected resolution.
- Check whether the LINK LED is red, blue, or flashing blue.
- Test the source directly with the display if possible.
EDID Requirement — Critical
EDID affects what resolution and audio format the source sends.
| EDID Situation | What Happens |
| EDID unlocked | EDID can copy from Receiver to Transmitter |
| EDID locked | EDID data cannot be changed |
| No valid Receiver EDID | EDID defaults to 1080P SDR, 2CH |
If the wrong resolution appears:
- Check if the EDID is locked.
- Unlock EDID if you need the Transmitter to copy the Receiver display EDID.
- Connect the Receiver to the desired display.
- Power cycle the HDMI source after changing EDID behavior.
- Use 1080P SDR, 2CH fallback for compatibility troubleshooting.
Power Requirement — Critical
Both units require USB 5V power.
| Power Detail | Specification |
| Transmitter power input | USB-C DC 5V |
| Receiver power input | USB-C DC 5V |
| Recommended power | DC 5V/1A |
| Power supply type | USB 5V |
| Transmitter power consumption | 3.2W max |
| Receiver power consumption | 2.2W max |
If the unit does not power on:
- Check the USB-C power cable.
- Try another USB 5V power source.
- Confirm the POWER LED is green.
- Try swapping the included USB cables.
- Avoid weak USB ports or unstable USB power.
Surge protection is recommended.
Firmware Update Port
Both the Transmitter and Receiver use the USB-C DC 5V port for firmware updates.
| Port | Firmware Update Support |
| Transmitter DC 5V USB-C | Supported |
| Receiver DC 5V USB-C | Supported |
Use firmware update only when instructed by OREI support or when a confirmed firmware file is provided.
Understanding the Application Example
The application example shows a PC connected to the Transmitter through HDMI. The Transmitter and Receiver are connected using single-mode LC fiber optic cable. The Receiver connects to a monitor through HDMI.
The diagram also shows USB cables connected to both units for DC 5V power.
This shows the main use case: an HDMI source is extended over long-distance LC fiber to a remote HDMI display, with each unit powered through USB 5V.
Supported Technical Specifications
| Specification | Support |
| Product Type | 4K60 HDMI over Fiber Extender |
| Model | UHD-FO10H-K |
| HDMI Compliance | HDMI 2.0b / 1.4b |
| HDCP Compliance | HDCP 2.2 |
| Video Bandwidth | 18Gbps |
| Input / Output Video Resolutions | 4096x2160p60, 4096x2160p50, 3840x2160p60, 3840x2160p50, 3840x2160p30, 3840x2160p25, 1920x1200p60RB, 1920x1080p60, 1920x1080p50, 1360x768p60, 1280x800p60, 1280x720p60, 1280x720p50, 1024x768p60, and VESA standard resolutions |
| Color Space | RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0 |
| Color Depth | 8-bit, 10-bit, 12-bit |
| HDMI Audio Formats | LPCM, Dolby Digital / Plus / EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DTS:X |
| HDR | HDR10, HDR10+, Dolby Vision, HLG |
| Fiber Optic Module | 10G SFP+ module |
| Transmission Distance | Up to 10km over single-mode LC fiber optic cable; up to 300m over multi-mode OM4 LC fiber optic cable |
| ESD Protection | IEC 61000-4-2: ±8kV air-gap discharge and ±4kV contact discharge |
| Transmitter Input | 1 x HDMI Type-A, 19-pin male |
| Transmitter Power / Service | 1 x DC 5V USB-C power input and firmware update port |
| Transmitter Output | 1 x LC FIBER |
| Receiver Input | 1 x LC FIBER |
| Receiver Power / Service | 1 x DC 5V USB-C power input and firmware update port |
| Receiver Output | 1 x HDMI Type-A, 19-pin male |
| Housing | Metal enclosure |
| Color | Black |
| Dimensions | Transmitter / Receiver: 89.8mm x 34.5mm x 14mm |
| Weight | Transmitter / Receiver: 127g |
| Power Supply | USB 5V |
| Power Consumption | Transmitter: 3.2W max; Receiver: 2.2W max |
| Operating Temperature | 32°F to 104°F / 0°C to 40°C |
| Storage Temperature | -4°F to 140°F / -20°C to 60°C |
| Operating Humidity | 20%–80% RH, non-condensing |
| Storage Humidity | 10%–90% RH, non-condensing |
Package Contents
| Item | Quantity |
| 4K60 HDMI over Fiber Extender Transmitter | 1 |
| 4K60 HDMI over Fiber Extender Receiver | 1 |
| USB Cable, USB Type-A to Type-C | 2 |
| User Manual | 1 |
What HDMI Source Devices Is the UHD-FO10H-K Compatible With?
The UHD-FO10H-K can connect to HDMI source devices such as:
- PCs
- Laptops
- DVD players
- Blu-ray players
- Streaming devices
- Media players
- Game consoles
- Cable boxes
- Satellite receivers
- HDMI switch outputs
- HDMI matrix outputs
- AV receiver HDMI outputs
The HDMI source must output a supported HDMI signal up to 4K2K@50/60Hz 4:4:4.
What Displays Is the UHD-FO10H-K Compatible With?
The UHD-FO10H-K can connect to HDMI display devices such as:
- 4K TVs
- UHD monitors
- HDMI projectors
- HDMI monitors
- Commercial displays
- Conference room displays
- Classroom displays
- Control room displays
- Security monitoring displays
- Digital signage displays
The connected display must support the selected HDMI resolution, HDR format, audio format, and HDCP requirements.
Frequently Asked Questions
Q: What is the UHD-FO10H-K used for?
A: It is used to extend HDMI video and audio over fiber optic cable up to 10km.
Q: Is the UHD-FO10H-K an HDMI over fiber extender?
A: Yes. It is a 4K60 HDMI over Fiber Extender.
Q: How far can it extend HDMI?
A: It can extend HDMI up to 10km over single-mode LC fiber optic cable.
Q: Can I use multi-mode fiber?
A: Yes. Multi-mode OM4 LC fiber can be used, but the distance is reduced to 300m.
Q: What fiber connector does it use?
A: It uses LC fiber optic connection.
Q: What fiber module does it use?
A: The manual lists a 10G SFP+ fiber optic module.
Q: Does it support 4K@60Hz?
A: Yes. It supports video resolution up to 4K2K@50/60Hz RGB 4:4:4.
Q: What HDMI version does it support?
A: It supports HDMI 2.0b and HDMI 1.4b.
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. HDR10, HDR10+, Dolby Vision, and HLG are supported.
Q: Does it support 3D video?
A: Yes. 3D video format is supported.
Q: Does it support Dolby Atmos?
A: Yes. Dolby Atmos is listed in the HDMI audio formats.
Q: Does it support DTS:X?
A: Yes. DTS:X is listed in the HDMI audio formats.
Q: Does it have HDMI loop output?
A: HDMI loop output is not listed for this model.
Q: Does it have analog audio output?
A: No separate analog audio output is listed in the manual.
Q: Does it support USB keyboard and mouse extension?
A: USB keyboard and mouse extension is not listed for this model.
Q: What are the USB-C ports used for?
A: The USB-C ports are used for DC 5V power input and firmware update.
Q: Does it support EDID transmission?
A: Yes. The manual lists EDID transmission from the Receiver to the Transmitter.
Q: What is EDID Lock?
A: EDID Lock allows the Transmitter EDID to be locked so the EDID data cannot be changed.
Q: Is EDID locked by default?
A: No. The manual states EDID is unlocked by default.
Q: What happens when EDID is unlocked?
A: EDID is copied from the Receiver to the Transmitter.
Q: What happens if no valid EDID is detected on the Receiver?
A: The EDID is set to 1080P SDR, 2CH.
Q: How do I lock or unlock EDID?
A: Use a needle-shaped tool to press the EDID Lock button inside the Transmitter.
Q: What does the EDID Lock LED mean when it is off?
A: It means EDID is unlocked and can copy EDID from the Receiver or load user-defined EDID through the upper computer.
Q: What does the EDID Lock LED mean when it is on?
A: It means EDID is locked and cannot be changed.
Q: What does the POWER LED mean?
A: The green POWER LED stays on when the unit is powered on.
Q: What does the LINK LED mean when it is off?
A: The Transmitter and Receiver are not connected.
Q: What does the LINK LED mean when it is red?
A: The Transmitter and Receiver are connected, but there is no signal.
Q: What does the LINK LED mean when it is blue?
A: The Transmitter and Receiver are connected, and the signal has HDCP.
Q: What does the LINK LED mean when it is flashing blue?
A: The Transmitter and Receiver are connected, but the signal is without HDCP.
Q: What should I do if there is no video signal or the output flickers?
A: Check HDMI and fiber optic cable connections, use single-mode fiber cable, test with a shorter fiber run to rule out cable damage, and try a lower resolution from the media source.
Q: What should I do if the LINK LED is off?
A: Check the fiber cable, LC connectors, fiber type, and make sure both units are powered.
Q: What should I do if the LINK LED is red?
A: The fiber connection is detected, but there is no HDMI signal. Check the HDMI source, HDMI connector, source power, and source resolution.
Q: What should I do if the display shows a black screen with protected content?
A: Check HDCP compatibility across the HDMI source and display. Try non-protected content to confirm basic signal transmission.
Q: What power supply does it use?
A: It uses USB 5V power through the USB-C DC 5V ports.
Q: Are power adapters included?
A: Power adapters are not listed in the package contents. The manual lists two USB Type-A to Type-C cables.
Q: Does each unit need power?
A: Yes. Power both the Transmitter and Receiver through their USB-C DC 5V ports.
Q: What is the power consumption?
A: The Transmitter consumes up to 3.2W, and the Receiver consumes up to 2.2W.
Q: What is included in the package?
A: The package includes one Transmitter, one Receiver, two USB Type-A to Type-C cables, and one user manual.
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