What Is the BK-EX130-K?

The OREI BK-EX130-K is a 4K@120Hz HDMI extender kit that sends HDMI video, audio, and bi-directional IR control up to 40m / 130ft over a single CAT 6 / CAT 7 cable.

The kit includes a Transmitter and Receiver. The HDMI source connects to the Transmitter, the display connects to the Receiver, and a CAT cable connects the Transmitter to the Receiver.

The BK-EX130-K supports HDMI 2.1 and HDCP 2.3, with a video bandwidth of 32Gbps. It supports video resolutions up to 4K@120Hz with DSC, 4K@60Hz, 1080p, 720p, 576p, and 480p. It also supports HDR, 12-bit deep color, EDID management, bi-directional IR, plug-and-play installation, uncompressed LPCM audio, and compressed audio formats such as DTS, Dolby Digital, DTS-HD Master Audio, and Dolby TrueHD.

The BK-EX130-K is useful for gaming setups, home theaters, media rooms, conference rooms, classrooms, offices, retail displays, and commercial AV installations where a high-bandwidth HDMI 2.1 signal needs to be extended to a display using CAT cable.

IMPORTANT — BK-EX130-K Supports 4K@120Hz With DSC

The BK-EX130-K supports video resolutions up to 4K@120Hz YUV 4:4:4 with DSC.

DSC stands for Display Stream Compression. The manual lists the product as compatible with DSC 1.2a.

To use 4K@120Hz, the HDMI source, display, HDMI cables, CAT cable, and source video settings must all support the required format.

This is especially important for gaming sources such as PS5, Xbox Series X, and gaming PCs.

IMPORTANT — BK-EX130-K Supports 32Gbps Bandwidth, Not Full 48Gbps

The BK-EX130-K supports a video bandwidth of 32Gbps.

It is HDMI 2.1 compliant, but it does not list full 48Gbps HDMI 2.1 bandwidth.

This means supported high-resolution formats depend on DSC, cable quality, source compatibility, and display compatibility.

IMPORTANT — Use CAT 6 / CAT 7 Cable

The BK-EX130-K extends HDMI up to 40m / 130ft over CAT 6 / CAT 7 cable.

For best performance, use a high-quality round-shielded CAT 6 cable.

Poor-quality or unshielded CAT cable may cause:

1. No video
2. Flickering
3. Black screen
4. Signal dropouts
5. 4K@120Hz not working
6. HDR issues
7. Audio dropouts
8. IR control issues

IMPORTANT — Use a Direct CAT Cable Connection

The BK-EX130-K should be connected directly from the Transmitter RJ45 OUT port to the Receiver RJ45 IN port.

Do not connect the extender through:

1. Network switch
2. Router
3. Internet network
4. LAN switch
5. Ethernet wall network system 
    
   Use the CAT cable as a direct signal extension cable between the Transmitter and Receiver.

IMPORTANT — Both Transmitter and Receiver Need Power

The BK-EX130-K includes two 12V DC power adapters.

The manual setup instructions state that the included power adapter should be connected on both ends to power the devices.

This model does not list PoC / Power over Cable support.

Connect one power adapter to the Transmitter and one power adapter to the Receiver.

IMPORTANT — No HDMI Loop Out

The BK-EX130-K does not include HDMI loop out.

It has:

1. HDMI IN on the Transmitter
2. HDMI OUT on the Receiver 
    
   If a local display is needed near the source, use a separate HDMI splitter or a different extender model with HDMI loop out.

IMPORTANT — EDID Switch Has STD and TV Modes

The Transmitter includes an EDID switch.

Use STD when you want the extender to provide a fixed 4K@120Hz EDID.

Use TV when you want the source to follow the connected display’s EDID.

If there is no video, wrong resolution, or compatibility issue, try changing the EDID switch and power cycling the source device.

IMPORTANT — Bi-Directional IR Is Supported

The BK-EX130-K supports bi-directional IR.

This means IR signals can travel in both directions:

1. Control the source device from the display side
2. Control the display from the source side 
    
   The kit includes:
3. IR Transmitter cable
4. IR Receiver cable 
    
   For a common setup where you want to control the source from the display side, connect the IR Receiver cable to IR IN on the Receiver and connect the IR Transmitter cable to IR OUT on the Transmitter.

IMPORTANT — This Product Duplicates the Source, It Does Not Create Extended Desktop

The manual FAQ notes that this product does not extend to multiple screens as an extended desktop.

It duplicates the input source to the output display.

If a computer needs true extended desktop operation, the computer must provide separate display outputs or use a dedicated multi-monitor solution.

Ports and Panel Layout

Step-by-Step Setup

1. Connect the HDMI source device to HDMI IN on the Transmitter. 
   Examples include a PS5, Xbox Series X, gaming PC, Blu-ray player, streaming device, media player, cable box, or laptop.
2. Connect the display to HDMI OUT on the Receiver. 
   Examples include a 4K@120Hz TV, gaming monitor, projector, or commercial display.
3. Connect the Transmitter and Receiver using a CAT 6 / CAT 7 cable.
4. Connect one included 12V power adapter to the Transmitter.
5. Connect the second included 12V power adapter to the Receiver.
6. Power on the HDMI source and display.
7. Set the EDID switch:
   1. Use STD for 4K@120Hz EDID
   2. Use TV for pass-through EDID from the display
8. If using IR control, connect the IR Receiver and IR Transmitter cables based on the direction of control needed.
9. Test video, audio, HDR, and IR control.
10. If there is no signal, press Reset once or power cycle the source and extender.

CAT Cable Requirement — Critical

For best performance, use a high-quality round-shielded CAT 6 or CAT 7 cable.

The manual lists extension up to:

Poor-quality, damaged, or incorrectly terminated CAT cable may cause:

1. No video
2. Flickering
3. Black screen
4. Signal dropouts
5. 4K@120Hz failure
6. HDR failure
7. Audio dropouts
8. IR control issues 
    
   The manual recommends high-quality HDMI cables under 30ft and round-shielded CAT 6 cables.

HDMI Cable Requirement — Critical

Use high-quality HDMI cables that support the resolution and refresh rate being used.

For 4K@120Hz, use HDMI cables rated for HDMI 2.1 performance.

Poor HDMI cables may cause:

1. No video
2. Flickering
3. Black screen
4. 4K@120Hz not working
5. HDR not working
6. Audio dropouts
7. HDCP handshake issues 
    
   For troubleshooting, test the HDMI source directly with the display before using the extender.

Understanding the Transmitter

The Transmitter is installed near the HDMI source device.

It has:

1. HDMI IN for the source
2. RJ45 OUT to connect to the Receiver
3. EDID switch for STD or TV mode
4. IR IN and IR OUT for bi-directional IR
5. Reset button
6. DC 12V power input 
    
   The Transmitter must be powered using one of the included 12V power adapters.

Understanding the Receiver

The Receiver is installed near the remote display.

It has:

1. RJ45 IN from the Transmitter
2. HDMI OUT to the display
3. IR IN and IR OUT for bi-directional IR
4. Reset button
5. DC 12V power input 
    
   The Receiver must be powered using the second included 12V power adapter.

Understanding EDID Settings

The BK-EX130-K has two EDID options.

EDID affects what resolution, refresh rate, HDR mode, and audio format the source device sends.

If 4K@120Hz does not appear in the source settings, try STD mode and confirm the display supports 4K@120Hz.

If the display has compatibility issues, try TV mode.

Understanding Bi-Directional IR

Bi-directional IR allows remote control signals to travel in either direction between the Transmitter and Receiver.

Example 1: Control source from the display location

1. Connect IR Receiver to IR IN on the Receiver
2. Connect IR Transmitter to IR OUT on the Transmitter
3. Place IR Receiver near the TV/display
4. Place IR Transmitter near the source device’s IR sensor 
    
   Example 2: Control display from the source location
5. Connect IR Receiver to IR IN on the Transmitter
6. Connect IR Transmitter to IR OUT on the Receiver
7. Place IR Receiver near the source-side remote location
8. Place IR Transmitter near the display’s IR sensor

Understanding IR Cable Placement

The IR Receiver receives remote control signals.

The IR Transmitter sends IR signals to the device being controlled.

For reliable IR control:

1. Place the IR Receiver where the remote control can see it
2. Place the IR Transmitter near the IR sensor of the device being controlled
3. Make sure IR IN uses the IR Receiver cable
4. Make sure IR OUT uses the IR Transmitter cable

Understanding Reset

Both the Transmitter and Receiver include a Reset button.

Press Reset once to reset the device.

Use Reset if:

1. No video appears
2. The display does not sync
3. The signal drops
4. EDID setting was changed
5. Source and display are not handshaking correctly 
    
   If Reset does not solve the issue, power cycle the source, display, Transmitter, and Receiver.

Supported Video and Audio

The BK-EX130-K supports video formats including:

Supported audio formats include:

What Source Devices Is the BK-EX130-K Compatible With?

The OREI BK-EX130-K is compatible with HDMI source devices such as:

1. PlayStation 5
2. Xbox Series X/S
3. Gaming PCs
4. Blu-ray players
5. Streaming devices
6. Cable boxes
7. Satellite receivers
8. Media players
9. Laptops with HDMI output
10. Desktop PCs with HDMI output 
     
    For 4K@120Hz, the source device must support 4K@120Hz output.

What Displays Is the BK-EX130-K Compatible With?

The BK-EX130-K can connect to HDMI displays such as:

1. 4K@120Hz TVs
2. Gaming monitors
3. 4K TVs
4. Projectors
5. Commercial displays
6. Conference room displays
7. Classroom displays
8. Retail displays 
    
   For 4K@120Hz, the display must support 4K@120Hz input.

Frequently Asked Questions

Q: What is the OREI BK-EX130-K used for? 
A: The BK-EX130-K is used to extend HDMI video and audio up to 40m / 130ft over CAT 6 / CAT 7 cable. It supports up to 4K@120Hz with DSC and also supports bi-directional IR control.

Q: Does the BK-EX130-K support 4K@120Hz? 
A: Yes. It supports video resolutions up to 4K@120Hz YUV 4:4:4 with DSC.

Q: Does the BK-EX130-K support 4K@60Hz? 
A: Yes. It supports 4K@60Hz.

Q: Does the BK-EX130-K support 8K? 
A: No. The manual lists support up to 4K@120Hz.

Q: What HDMI version does it support? 
A: It supports HDMI 2.1.

Q: What HDCP version does it support? 
A: It supports HDCP 2.3.

Q: What video bandwidth does it support? 
A: It supports 32Gbps video bandwidth.

Q: Does it support HDR? 
A: Yes. HDR is supported.

Q: What is DSC? 
A: DSC stands for Display Stream Compression. The manual lists support for Digital Stream Conversion / DSC 1.2a compatibility.

Q: How far can it extend HDMI? 
A: It can extend video signals up to 40m / 130ft over CAT 6 / CAT 7 cable.

Q: What CAT cable should I use? 
A: Use high-quality round-shielded CAT 6 cable or CAT 7 cable.

Q: Can I connect it through a network switch or router? 
A: No. Connect the Transmitter and Receiver directly using CAT cable.

Q: Does it support Power over Cable? 
A: No PoC function is listed in the manual. The package includes two 12V power adapters, and the setup instructions say to power both ends.

Q: Does the Transmitter have HDMI loop out? 
A: No. This model does not include HDMI loop out.

Q: Does it support IR control? 
A: Yes. It supports bi-directional IR.

Q: Which IR cable goes into IR IN? 
A: The IR Receiver cable connects to IR IN.

Q: Which IR cable goes into IR OUT? 
A: The IR Transmitter cable connects to IR OUT.

Q: What EDID modes are available? 
A: The EDID switch has STD and TV modes. STD is for 4K@120Hz video, and TV is for pass-through EDID.

Q: Can I use this for extended desktop across multiple monitors? 
A: No. The manual FAQ says it does not extend to multiple screens as an extended desktop. It duplicates the input source.

Q: Can I extend beyond 40m / 130ft? 
A: The manual notes that signal may be possible beyond the listed distance, but video quality decreases as distance increases, especially depending on cable quality.

Q: Can I daisy chain this extender? 
A: The manual FAQ says this extender can be daisy chained with another set of the same model. For best stability, use the recommended cable distance and high-quality shielded CAT cable.

Q: How do I upgrade the firmware? 
A: Firmware can be upgraded by connecting a PC to the device through Micro USB. Check the product page downloads section for firmware files.

Q: What HDMI cable should I use? 
A: Use high-quality HDMI cables under 30ft. For 4K@120Hz, use HDMI cables rated for HDMI 2.1 performance.

Q: What should I do if there is no video? 
A: Check that both power adapters are connected, confirm the CAT cable is connected directly, try a shorter shielded CAT 6 cable, check the EDID switch, press Reset once, and test the source directly with the display.

Q: What should I do if 4K@120Hz does not work? 
A: Confirm the source and display support 4K@120Hz, use HDMI 2.1-rated HDMI cables, use high-quality shielded CAT 6 / CAT 7 cable, set EDID to STD, and check the source video settings.

Q: What should I do if IR control does not work? 
A: Connect the IR Transmitter cable to IR OUT on the Transmitter and the IR Receiver cable to IR IN on the Receiver for source control from the display side. Make sure the IR Transmitter is placed near the source device’s IR sensor.

Q: Does the BK-EX130-K need external power? 
A: Yes. Connect the included 12V power adapters to both the Transmitter and Receiver.