Devantech 8 Channel USB Relay Module

This Devantech 8-channel USB relay module is both powered and controlled by a standard USB bus hub. It uses relays with premium ultra-low power 50mW coil types, which means that the board’s consumption of current is less than 100mA, even with all the relays on, for excellent energy efficiency. Each of the eight of the voltage-free contract relay outputs has a current rating of up to 1A each, and the relays are SPCO (Single Pole Change Over) types. Normally open, normally closed, and common pins are all available on the screw terminals for maximum versatility.

Installation instructions are available from Devantech in the Downloads section. The USB-RLY08 will show up on a Unix based computer as a virtual serial port without the need to install any drivers.