Simplecom Mechanical 4 Way HDMI Switch Box (CM340)

The Simplecom CM340 Mechanical 4 Way HDMI Switch Box is a reliable, hardware-based solution for managing multiple HDMI sources on a single display. Unlike electronic switches that require external power, this mechanical switch uses physical buttons to toggle between inputs, ensuring a stable connection without the risk of signal interference from power adapters or electronic handshaking issues.

It supports resolutions up to 4K at 30Hz and is fully backward compatible with 1080p and 720p. Its passive design means it doesn’t need to be plugged into a wall outlet, making it an ideal choice for clean setups where cable management is a priority. The sturdy metal housing provides excellent heat dissipation and durability for long-term professional or home use.

Key Features & Specifications

• Mechanical Switching: Features four dedicated physical buttons to switch between sources, eliminating the need for a remote or external power.

• 4K Ultra HD Support: Capable of outputting 4K @ 30Hz and 3D video, providing clear and crisp visuals for gaming and media.

• Plug-and-Play: Requires no software or drivers; simply connect your HDMI cables and start switching immediately.

• Passive Power: Operates entirely on the power provided by the HDMI cables from your source devices, reducing clutter.

• Sturdy Metal Casing: The robust metal enclosure protects internal components and helps shield against electromagnetic interference.

• Bi-Directional Capability: While primarily used as a 4-input to 1-output switch, mechanical designs like this can often function in reverse (1-input to 4-outputs, one at a time).

The Computer Guy Charmhaven Advantage

• Expert Local Support: As the Central Coast’s largest computer centre, we provide hands-on expertise and local technical assistance for all your AV and connectivity needs.

• In-Store Advice: Unlike shopping online, you can visit us to discuss your specific HDMI cable lengths and ensure you have the right cables to maintain signal integrity with a passive switch.