Devantech 2x16A USB Relay Module

The USB-RLY02 provides two voltage-free contact relay outputs with a current rating of up to 16A each. The USB-RLY02 is powered and instructed from any standard USB bus and does not require any additional power. The relays are SPCO (Single Pole Change Over) types. The normally open, normally closed and common pins are all available on the screw terminals.