STABLE STRUCTURE: USB relay module is equipped with a stable performance USB to serial port chip and a microcontroller, you can use with confidence
SMART CONTROL: The module can use the serial port debugging software to send serial commands on the computer to control the opening and closing of the 2 channel relay
CHIP AND INDICATOR: Onboard high performance microcontroller chip, Type C control chip. With power LED indicator and relay status LED, more convenient
LONG LASTING: USB relay module on board 2 channel 5V, 10A 250VAC, 10A 30VDC relay, possess long relay life, can work 100,000 times continuously
VARIOUS PROTECTIONS: 2 channel 5V USB relay module come with overcurrent protecting and relay diode freewheel protecting, as well as optical protecting, more