What Is the BK-202A?
The OREI BK-202A is an 8K HDMI 2x2 matrix switcher with audio extraction. It allows you to connect up to two HDMI source devices and route them to up to two HDMI displays.
The BK-202A can work as both a switcher and a splitter. This means you can send either HDMI input to either HDMI output, or you can send the same HDMI source to both displays at the same time.
The BK-202A supports HDMI 2.1 and HDCP 2.3, with a video bandwidth of 40Gbps. It supports video resolutions up to 8K@60Hz 4:2:0 10-bit, 8K@30Hz 4:4:4 10-bit, and 4K@120Hz 4:4:4 10-bit. It also supports HDR, HDR10, HDR10+, Dolby Vision, HLG, VRR, FVA, ALLM, advanced EDID management, and audio de-embedding through Optical and 3.5mm analog audio outputs.
The BK-202A is useful for home theater, gaming, conference rooms, classrooms, demonstrations, and setups where two HDMI sources need to be shared between two displays.
IMPORTANT — BK-202A Is a Matrix, Not Just a Splitter
The BK-202A is a 2-input, 2-output HDMI matrix.
This means either HDMI input can be routed to either HDMI output.
For example:
- Output 1 can show Input 1
- Output 2 can show Input 2
You can also route the same input to both outputs if you want both displays to show the same source.
This makes the BK-202A more flexible than a basic HDMI splitter.
IMPORTANT — BK-202A Can Work as a Splitter or Switcher
The BK-202A can be used in different ways depending on the setup.
As a splitter, it can send one selected HDMI source to both connected displays.
As a switcher, it can switch between two HDMI sources for either output.
As a matrix, each output can independently choose Input 1 or Input 2.
This is useful when you want two displays to share two source devices such as a PC and Blu-ray player, gaming console and TV box, or media player and computer.
IMPORTANT — BK-202A Supports 8K and 4K@120Hz
The BK-202A supports HDMI 2.1 video formats including:
- 8K@60Hz 4:2:0 10-bit
- 8K@30Hz 4:4:4 10-bit
- 4K@120Hz 4:4:4 10-bit
To use these resolutions, every part of the setup must support the required HDMI 2.1 format.
This includes:
- HDMI source device
- HDMI display
- HDMI cables
- Source video settings
For example, to use 4K@120Hz from a PS5, Xbox Series X, or gaming PC, the source device, HDMI cable, BK-202A, and display must all support 4K@120Hz.
IMPORTANT — Audio Extraction Has Format Limits
The BK-202A includes both Optical and 3.5mm analog audio outputs.
The Optical output supports LPCM 2/5.1CH, Dolby Digital 2/5.1CH, and DTS 2/5.1CH.
The 3.5mm analog L/R output supports PCM 2.0 only.
If you are using the 3.5mm analog output and there is no audio, set the HDMI source device to PCM or Stereo audio.
If you are using Optical, set the source audio format to a format supported by your Optical audio device, such as PCM stereo, Dolby Digital, or DTS 5.1.
IMPORTANT — 3.5mm Audio Does Not Downmix Surround Sound
The 3.5mm L/R output is for PCM 2.0 stereo audio.
It does not convert Dolby Digital, DTS, Dolby TrueHD, DTS-HD Master Audio, Dolby Atmos, or other surround formats into analog stereo.
If the source is outputting surround sound, the 3.5mm output may not produce audio.
Use PCM / Stereo audio from the source when using the 3.5mm analog output.
IMPORTANT — HDMI Cable Quality Matters for 8K and 4K@120Hz
For 8K and 4K@120Hz performance, use Ultra High Speed HDMI 2.1 cables.
The manual recommends the following HDMI cable lengths:
| Video Resolution | Recommended HDMI Cable Type | Recommended Length |
| 8K | Ultra HDMI 2.1 | 3m / 10ft |
| 4K60 | HDMI 2.0 | 8m / 26ft |
| 4K24 | HDMI 1.4 | 12m / 39ft |
| 1080p | HDMI 1.4 | 15m / 49ft |
Poor-quality or longer HDMI cables may cause no signal, flickering, black screen, audio dropouts, or unstable video.
Ports and Panel Layout
| Port / LED / Button | Location | Function |
| IR Window | Front panel | Receives IR signal from the included remote |
| Power LED | Front panel | Green when the device is working; red when in standby |
| OUT 1 LEDs 1–2 | Front panel | Shows which input is selected for Output 1 |
| OUT 2 LEDs 1–2 | Front panel | Shows which input is selected for Output 2 |
| OUT 1 / OUT 2 Buttons | Front panel | Selects the HDMI input source for Output 1 or Output 2 |
| EDID DIP Switch | Front panel | Sets the EDID mode |
| SERVICE | Front panel | Micro USB firmware update and debug port |
| HDMI IN 1–2 | Rear panel | Connect HDMI source devices such as DVD player, PS5, PC, or media player |
| HDMI OUT 1–2 | Rear panel | Connect HDMI displays such as TVs or monitors |
| Optical Output | Rear panel | Digital Optical audio output |
| L/R Output | Rear panel | 3.5mm analog stereo audio output |
| DC 5V | Rear panel | Connect the included 5V/2A power adapter |
Step-by-Step Setup
- Connect the included 5V/2A power adapter to the DC 5V port on the BK-202A.
- Connect your HDMI source devices to HDMI IN 1 and HDMI IN 2.
Examples include a Blu-ray player, DVD player, PS5, Xbox, PC, laptop, streaming device, or TV box. - Connect HDMI OUT 1 and HDMI OUT 2 to your TVs, monitors, or projectors.
- If using audio extraction, connect your audio system to either:
- Optical output for Optical/TOSLINK audio systems
- 3.5mm L/R output for analog stereo speakers or amplifier
- Turn on the source devices, displays, audio system, and BK-202A.
- Use the OUT 1 and OUT 2 buttons on the front panel to choose which input appears on each output.
- Use the included IR remote if you want to switch inputs from a distance.
- Set the EDID DIP switch based on your required video and audio format.
- If using 3.5mm analog audio, set the source device audio output to PCM or Stereo.
HDMI Cable Requirement — Critical
For best performance, use the correct HDMI cable based on the resolution being used.
For 8K@60Hz or 4K@120Hz, use Ultra High Speed HDMI 2.1 cables.
For 4K@60Hz, use high-quality HDMI 2.0 cables.
If there is no video, flickering, or unstable signal, try the following:
- Use shorter HDMI cables
- Confirm the source supports the selected resolution
- Confirm the display supports the selected resolution
- Lower the source resolution for testing
- Try another HDMI cable
- Check the EDID DIP switch setting
Understanding Matrix Routing
The BK-202A allows either input to be assigned to either output.
| Output | Available Source Options |
| Output 1 | Input 1 or Input 2 |
| Output 2 | Input 1 or Input 2 |
This means both displays can show the same source, or each display can show a different source.
Example:
| Output | Selected Source |
| Output 1 | PC |
| Output 2 | Blu-ray player |
Understanding the OUT 1 and OUT 2 Buttons
The front-panel OUT 1 and OUT 2 buttons control which input is routed to each output.
Press the OUT 1 button to switch the source for HDMI OUT 1.
Press the OUT 2 button to switch the source for HDMI OUT 2.
The corresponding OUT LED will turn on to show whether Input 1 or Input 2 is selected for that output.
EDID DIP Switch Settings
The BK-202A includes EDID DIP switch settings to help manage video and audio compatibility.
| DIP Setting | EDID Mode |
| 111 | Copy OUT port sink EDID. This is the factory default |
| 110 | HDMI 1080p@60Hz, Audio 2CH PCM |
| 101 | HDMI 4K@60Hz 4:4:4, Audio 2CH PCM, HDR |
| 100 | HDMI 4K@60Hz 4:4:4, Audio 5.1CH PCM/DTS/Dolby, HDR |
| 011 | HDMI 4K@60Hz 4:4:4, Audio 7.1CH PCM/DTS/Dolby/HD, HDR |
| 010 | HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, 4K@120Hz 4:4:4, Audio 2CH PCM, HDR |
| 001 | HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, 4K@120Hz 4:4:4, Audio 5.1CH PCM/DTS/Dolby, HDR |
| 000 | HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, 4K@120Hz 4:4:4, Audio 7.1CH PCM/DTS/Dolby/HD, HDR |
Use 2CH PCM modes when using the 3.5mm analog audio output.
Use 5.1CH modes when using Optical audio with a compatible Dolby/DTS soundbar, AVR, or amplifier.
Use 7.1CH / HD audio modes when using HDMI audio with a compatible AVR or advanced sound system.
Use the default Copy EDID mode when you want the source to follow the connected display’s capabilities.
Understanding Audio Extraction
The BK-202A can extract audio from HDMI and send it to external audio systems.
| Output | Supported Audio | Best Used For |
| HDMI OUT 1 / OUT 2 | LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, DTS, DTS-HD Master Audio, DSD | TVs, AVRs, HDMI audio systems |
| Optical | LPCM 2/5.1CH, Dolby Digital 2/5.1CH, DTS 2/5.1CH | Optical soundbars, AVRs, amplifiers |
| 3.5mm L/R | PCM 2.0 | Stereo speakers, analog amplifiers, headphones with proper adapter |
If the analog output is not producing sound, set the source to PCM / Stereo and use a 2CH EDID mode.
Understanding the IR Remote
The included IR remote can control power and input selection for each output.
| Remote Button | Function |
| Power | Powers on the product or sets it to standby mode |
| Output 1 - 1/2 | Selects Input 1 or Input 2 for Output 1 |
| Output 2 - 1/2 | Selects Input 1 or Input 2 for Output 2 |
| Cycle Button | Cycles HDMI source IN 1 / IN 2 to the corresponding output |
Use the remote when the BK-202A is installed away from the main viewing position.
What Source Devices Is the BK-202A Compatible With?
The OREI BK-202A is compatible with HDMI source devices such as:
- PlayStation 5
- Xbox Series X/S
- Gaming PCs
- Desktop PCs
- Laptops with HDMI output
- Blu-ray players
- DVD players
- Apple TV
- Roku
- Fire TV
- NVIDIA Shield
- Cable boxes
- Satellite receivers
- TV boxes
- Set-top boxes
- Other HDMI media players
For 8K@60Hz or 4K@120Hz, the source device must support that resolution and refresh rate.
What Displays Is the BK-202A Compatible With?
The BK-202A can connect to HDMI displays such as:
- 8K TVs
- 4K TVs
- Gaming monitors
- Monitors
- Projectors
- Commercial displays
For 8K output, the connected display must support 8K input.
For 4K@120Hz, the connected display must support 4K at 120Hz.
What Audio Devices Is the BK-202A Compatible With?
The BK-202A can send audio to:
- Optical soundbars
- AV receivers
- Audio amplifiers
- Powered speakers
- Stereo speaker systems
- HDMI TVs or AVRs through HDMI output
For Optical audio, the audio device must support the selected digital audio format.
For 3.5mm analog audio, the source should be set to PCM / Stereo.
Frequently Asked Questions
Q: What is the OREI BK-202A used for?
A: The BK-202A is used to connect two HDMI source devices to two HDMI displays. It can route either input to either output and can also extract audio through Optical or 3.5mm output.
Q: Is the BK-202A a splitter?
A: It can work like a splitter by sending the same input to both outputs, but it is more flexible than a basic splitter because it is a 2x2 matrix.
Q: Is the BK-202A a matrix switcher?
A: Yes. It is a 2-input, 2-output HDMI matrix switcher.
Q: Can Output 1 and Output 2 show different sources?
A: Yes. Output 1 can show Input 1 while Output 2 shows Input 2, or either output can be assigned to either input.
Q: Can both displays show the same source?
A: Yes. You can select the same input for both HDMI outputs.
Q: How many HDMI sources can I connect?
A: You can connect up to two HDMI source devices.
Q: How many displays can I connect?
A: You can connect up to two HDMI displays.
Q: Does the BK-202A support 8K?
A: Yes. It supports up to 8K@60Hz 4:2:0 10-bit and 8K@30Hz 4:4:4 10-bit when the connected source, display, and cables support it.
Q: Does the BK-202A support 4K@120Hz?
A: Yes. It supports 4K@120Hz 4:4:4 10-bit when used with compatible HDMI 2.1 source devices, displays, and cables.
Q: Does the BK-202A support HDR and Dolby Vision?
A: Yes. It supports HDR, HDR10, HDR10+, Dolby Vision, and HLG pass-through.
Q: Does the BK-202A support VRR and ALLM?
A: Yes. It supports VRR, FVA, and ALLM when the connected source and display also support those features.
Q: Does the BK-202A have audio extraction?
A: Yes. It includes Optical and 3.5mm analog audio outputs.
Q: What audio does the Optical output support?
A: The Optical output supports LPCM 2/5.1CH, Dolby Digital 2/5.1CH, and DTS 2/5.1CH.
Q: What audio does the 3.5mm output support?
A: The 3.5mm analog output supports PCM 2.0 only.
Q: Why am I not getting audio from the 3.5mm output?
A: Set the source device audio output to PCM or Stereo and use a 2CH EDID mode.
Q: Does HDMI audio still pass to the TV?
A: Yes. HDMI audio passes through the HDMI outputs to connected TVs, monitors, or HDMI audio systems.
Q: How do I switch sources for each output?
A: Use the OUT 1 / OUT 2 buttons on the front panel or use the included IR remote.
Q: What is the SERVICE port used for?
A: The Micro USB SERVICE port is used for firmware update and debug purposes.
Q: Does the BK-202A need external power?
A: Yes. Connect the included 5V/2A power adapter.
Q: What HDMI cable should I use for 8K?
A: Use Ultra High Speed HDMI 2.1 cables. The manual recommends up to 3m / 10ft for 8K.
Q: What should I do if there is no video output?
A: Check that the correct input is selected for the output, confirm all HDMI cables are connected properly, try changing the HDMI cable, and check the EDID DIP switch setting.
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