This 4-channel relay interface board allows you to control different appliances and equipment that use high-current draws using low voltage outputs such as those in microcontrollers and SoCs like the ones on a Raspberry Pi or BeagleBone.
Always use proper precautions when working with high-current devices!
5V 4-Channel Relay interface board, and each one needs 15~20mA Driver Current
Equipped with high-current relay: 250VAC 10A; 30VDC 10A
Standard TTL interface that can be controlled directly by a microcontroller or SoC