Description
BK-402A: 4x2 HDMI Matrix with Audio Extraction
Key Features:
-
HDMI 2.1 & HDCP 2.3 Compliant – Compatible with the latest video and content protection standards.
-
40Gbps Video Bandwidth – Ensures high-quality signal transmission for 8K and 4K content.
-
Supports Resolutions up to 8K@60Hz (4:2:0 10-bit) – Also supports 8K@30Hz (4:4:4 10-bit) and 4K@120Hz (4:4:4 10-bit).
-
VRR, ALLM & FVA Support – Optimized for smooth and responsive video performance, especially in gaming and fast-action content.
-
eARC Support – Enables lossless audio return between Input 1 and Output 1 for advanced sound systems.
-
Audio Extraction – Optical and 3.5mm analog outputs provide flexible external audio routing.
-
Advanced Downscaling – Converts 8K to 4K and 8K/4K to 2K for display compatibility.
-
HDR Format Support – Pass-through for HDR10+, Dolby Vision, and HLG ensures vibrant color and contrast.
-
Dolby Atmos & DTS:X Support – Delivers premium surround sound over eARC-enabled systems.
-
EDID Management via DIP Switches – Fine-tune source-to-display communication for reliable performance.
-
User-Friendly Control – Operate via front-panel buttons or included IR remote.
-
Compact Form Factor – Ideal for discreet installation in professional or residential AV setups.
The BK-402A is a high-performance 4x2 HDMI matrix switcher designed to distribute ultra-high-definition video and advanced audio from up to four HDMI sources to two HDMI displays. Fully compliant with HDMI 2.1 and HDCP 2.3 standards, it supports 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), delivering stunning picture quality with a 40Gbps video bandwidth.
Each output can display content independently, allowing different sources on different displays. The unit also supports advanced downscaling, converting 8K content to 4K or 2K and 4K content to 2K for compatibility with lower-resolution screens. Optical and 3.5mm analog audio outputs provide flexible audio extraction, while eARC is supported between Input 1 and Output 1 to enable high-bandwidth audio pass-through for premium sound systems.
Additional features include support for HDR10+, Dolby Vision, HLG, and high-end audio formats such as Dolby Atmos and DTS:X. With a compact design, front-panel DIP switches for EDID management, and user-friendly control via the included remote or front-panel buttons, the BK-402A is an ideal choice for home theaters, educational environments, and professional AV installations.
[shortdes]
- VRR, ALLM, and FVA support
- Video resolutions up to 8K@60Hz or 4K@120Hz
- Audio extraction through S/PDIF and L/R audio outputs
[/shortdes]
[tab]
CONNECTIVITY
| INPUT: | 4 × HDMI [Type A, 19-pin female] | |
| OUTPUT: | 2 × HDMI [Type A, 19-pin female] | |
| 1 × OPTICAL [S/PDIF, female] | ||
| 1 × L/R [3.5mm Stereo mini-jack] | ||
| CONTROL: | 1 × SERVICE [Micro-USB, Update port] |
PACKAGE CONTENTS
| 1x BK-402A |
| 1x Remote |
| 1x Power Adapter |
| User Manual |
SUPPORTED HDMI CABLES
| HDMI 2.1 | We recommend using high-quality HDMI 2.1 cables under 30 feet for optimum performance |
EXTENDING DISTANCE
| 8K@60Hz: | 10 Feet |
| 4K@60Hz: | 30 Feet |
VIDEO OUTPUT
| Video Bandwidth: | 40 Gbps |
| Video Resolutions: |
Up to 8K@60Hz 4:2:0 10bit, 8K@30Hz 4:4:4 10bit, 4K@120Hz 4:4:4 10bit, 4K@60Hz, 2K@120Hz, 2K@60Hz
|
ADDITIONAL FEATURES
| Audio Extraction: | 3.5mm |
| ARC / eARC Passthrough: | ✅ |
| EDID Management: | ✅ |
| VRR / ALLM / FVA: | ✅ |
| Dolby Atmos / DTS EX Passthrough: | ✅ |
| 8K to 4K Downscale: | ✅ |
| USB KVM: | ❌ |
AUDIO SUPPORT
| HDMI Audio Formats: |
LPCM, Dolby Digital/Plus/EX, Dolby True HD, Dolby Atmos, DTS,
DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD
|
| OPTICAL Audio Formats |
LPCM/Dolby/DTS 5.1
|
| 3.5mm Analog Audio Formats: |
LPCM 2.0
|
COMPLIANCES
| HDMI Compliance | HDMI 2.1 |
| HDCP Compliance | HDCP 2.3 |
POWER
| Power Consumption: | 2W (Max) | |
| Power Supply: | Input: AC 100-240V 50/60Hz | |
| Output: DC 5V/2A |
DIMENSIONS & WEIGHT
| Length: | 200mm / 7.87in | |
| Width: | 85mm / 3.35in | |
| Height: | 21mm / 0.83in | |
| Weight: | 411g / 14.5oz |
PROPERTIES
| Color: | Black |
| Housing: | Metal Enclosure |
| Operation Temperature: | 0°C ~ 40°C / 32°F ~ 104°F |
| Storage Temperature: | -20°C ~ 60°C / -4°F ~ 140°F |
| Operating Humidity: | 20~90% RH (non-condensing) |
WARRANTY
| 1-Year Manufacturer's Warranty |
[/tab]
[tab1]Visit Our Help Center for FAQs, Troubleshooting and other queries: www.support.orei.com
[/tab1]
We are here to help!
If you are having any trouble with locating the correct replacement, part number, or assistance with diagnosis please do not hesitate to reach out to us.
Support