USB Development Boards RELAY MOD 4 LATCHING RELAYS USB A CBL 6'
**Latching Relay Module**
The is an easy-to-use relay module utilized for computer control of electrical or electronic equipment. The relays used on the module are latching types and as such do not change state when power is removed. All operational power is taken from the host PC via the USB port.
得捷:
MODULE LATCHING-RELAY 4-CH
Allied Electronics:
USB-BASED LATCHING RELAY MODULE
Electro Sonic:
USB Relay Module
