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USB Relay
USB Relay Relay Board

USB Computer Controlled Switching
USB Relay Controllers allow computer controlled switching using the USB port of your computer.  An NCD USB Relay Board emulates a COM port, allowing you to speak to the relay board using any programming language that supports serial communications.  COM drivers allow you to assign any COM port to the USB Relay Board.  An NCD USB Relay Driver supports 8-Channels of 8-Bit / 10-Bit Analog to Digital Conversion (A/D), and include an XR Relay Expansion Port for adding additional relays to the USB Relay Controller Board.

Latest Advancements
Look for our ProXR series controllers for the latest advancements is signal switching!  Available in USB Relay configurations, the ProXR Series is capable of controlling up to 256 relays.  Weather you need power switching or DPDT signal switching, the ProXR Series are built from the ground up with Expansion in mind.  Simply Chain the XR Expansion Modules, one after another, to meet your computer controlled switching requirements. For more detailed information and to order, please click on the links below.