KAMEHA KA238 4×2 HDMI Matrix Switch V2.0 with Audio (4K@60Hz)

Product Introduction

The KAMEHA KA238 HDMI Matrix Switcher is a high-performance 4-in 2-out HDMI solution designed for professional AV distribution. It allows any of the four HDMI source devices to be independently switched to two HDMI displays simultaneously.

Supporting ultra-high resolution up to 4K2K@60Hz (YCbCr 4:4:4) with HDCP 2.2 compliance, this matrix ensures crystal-clear video and premium audio performance. With built-in audio extraction, 4K downscaling, ARC, and advanced EDID management, the KA238 delivers maximum compatibility and flexibility for both commercial and residential installations.

Product Description

The KA238 HDMI Matrix V2.0 offers seamless switching between 4 HDMI sources such as media players, gaming consoles, set-top boxes, laptops, and Blu-ray players to 2 HDMI displays.

Equipped with 18Gbps bandwidth, it fully supports modern HDMI standards including Dolby Vision, HDR10+, and HLG, ensuring vibrant colors and superior contrast.

The matrix also features audio de-embedding, allowing users to extract HDMI audio from either Output A or Output B to optical (S/PDIF) or analog L/R output for connection to amplifiers, soundbars, or external audio systems.

For mixed-resolution environments, both outputs support 4K → 1080P downscaling, making it ideal for setups where one display supports 4K while another supports only Full HD.

Control is simple and flexible via front panel buttons or IR remote control, making installation and operation user-friendly.

Key Features / Bullet Points

•  4 HDMI Inputs × 2 HDMI Outputs (Independent Switching)

• Supports HDMI 2.0, HDCP 2.2 / 1.4, DVI 1.0

• Resolution up to 4K2K@60Hz YCbCr 4:4:4

• Full 18Gbps uncompressed bandwidth

• Supports Dolby Vision, HDR10+, HLG

• Audio Extraction to:

  • Optical (S/PDIF)

  • Analog L/R (3.5mm Stereo)

• Supports Dolby TrueHD, DTS-HD Master Audio

•  4K to 1080P Downscale Function (OUT A & OUT B)

•  ARC (Audio Return Channel) Support

• Advanced EDID Management (AUTO / COPY / STD)

• Control via Front Panel & IR Remote

• Durable Metal Enclosure Design

Technical Specifications

Video & Audio

• HDMI Version: HDMI 2.0

• HDCP: HDCP 2.2 / 1.4

• Bandwidth: 18Gbps

• Resolution: Up to 4K2K@50/60Hz (YCbCr 4:4:4)

• Color Space: RGB / YCbCr 4:4:4 / 4:2:2 / 4:2:0

• Audio Formats:

  • HDMI: PCM 2.0/5.1/7.1, Dolby Digital/Plus/EX, Dolby TrueHD, DTS, DTS-HD MA

  • Optical: PCM 2.0, Dolby Digital, DTS

  • L/R: PCM 2.0

(Note: When ARC is activated, audio extraction ports will mute.)

Connectivity

• 4× HDMI Input (Type A, 19-pin female)

• 2× HDMI Output (Type A, 19-pin female)

• 1× Optical Audio Output (S/PDIF)

• 1× 3.5mm L/R Audio Output

Mechanical & Power

• Housing: Metal enclosure

• Color: Black

• Dimensions: 251mm (W) × 105mm (D) × 20mm (H)

• Weight: 620g

• Power Supply: AC100–240V → DC12V/1A

• Power Consumption: 3.8W (Max)

• Operating Temp: 0°C ~ 40°C

Applications & Solutions

The KAMEHA KA238 HDMI Matrix is ideal for:

Conference Rooms

Route multiple presentation sources to dual displays or projectors.

Retail & Digital Signage

Distribute promotional content to multiple screens with audio integration.

Home Theater Systems

Switch between gaming console, media player, and TV box with independent 4K/1080p display support.

Education & Training Rooms

Connect multiple laptops or media sources to classroom displays.

Mixed 4K & Full HD Environments

Built-in downscaling ensures compatibility between different resolution displays.