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8K 4x2 HDMI™ Matrix (Audio Extract, eARC)-BK-402A

$149.99 USD $159.99
SKU: BK-402A

  • VRR, ALLM, and FVA support
  • Video resolutions up to 8K@60Hz or 4K@120Hz
  • Audio extraction through S/PDIF and L/R audio outputs

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30 Days Return
30 Days Return
1 Year Warranty
1 Year Warranty
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Free shipping in USA
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1. Flexible 4x2 HDMI Matrix for Multi-Display Control

The BK-402A is a powerful HDMI matrix 4x2 switcher that lets you independently route any of four HDMI sources to two HDMI displays. Whether you're managing a home theater, a classroom, or a conference setup, this HDMI matrix switcher gives you the flexibility to display different content on each screen—no lag, no signal loss, just smooth and seamless switching.

2. Ultra-HD 8K Video with Advanced HDR Support

With support for 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), the BK-402A delivers exceptional image clarity and color fidelity. It supports HDR10+, Dolby Vision, and HLG pass-through, providing vibrant contrast and true-to-life visuals. Designed for modern AV needs, this 8K HDMI matrix ensures your content always looks its best.

3. Game-Optimized Features with eARC and Audio Extraction

Built with gamers and AV pros in mind, the BK-402A includes Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and Fast VActive (FVA) for ultra-smooth performance. With eARC support between Input 1 and Output 1, it also enables high-quality audio return for Dolby Atmos and DTS:X setups. Optical and 3.5mm outputs offer additional flexibility for integrating external audio systems—making it one of the best HDMI matrix solutions for immersive setups.

4. Smart Downscaling & Compact, Installer-Friendly Design

Easily downscale 8K to 4K or 2K, and 4K to 2K, allowing seamless compatibility with legacy displays. EDID management via DIP switches ensures stable communication between all connected devices. With intuitive front-panel controls, an included IR remote, and a discreet, space-saving form factor, this HDMI 2.1 matrix switch is engineered for performance and convenience in any environment.

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.