- The item is a 5V 2-channel relay interface board and it can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM and so on. - 2-Channel Relay interface board - Equipped with high-current relay : DC 30V, AC 250V, 30A - Standard interface that can be controlled directly by microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM)