This is 1 channel version of different relays available our shop. The USB Control 1 Channel Module 5V Relay Module has Onboard USB Control Module with one 5V Relay Module with square USB port, and the connection is stable.
It has high-performance USB controlling chip and genuine relay on board as well as military level PCB board workmanship. The USB Control 1 Channel Module 5V Relay Module supports Win7, XP 32 system.
The USB Control 1 Channel Module 5V Relay Module board has fully machinery processing. And all patch parts manufacturing and each module are tested OK before shipment for high reliability.