USB 4 Channel Relay Module DC5V Switch

1 4-channel USB relay module, with DC5V working voltage, which has stable performance. 2 Long service life, it can be connected continuously for 100,000 times, high reliability. 3 Adopt high-performance control chip, which can meet various work needs. 4 Send serial port commands on the computer to control on and off of the relay. 5 Made of premium quality PCB, good thermal conductivity and electrical insulation properties.

What's in the box
1 x Relay Module