EMX-HL-0822 is an 8-Channel DC 5V Relay Module from EMAX. This module can be used for controlling multiple devices with digital control. It has a maximum current of 10A and a maximum current of 250V AC/30V DC. It also features a 5V voltage regulator, and comes with an 8-channel relay interface board, a terminal block, and a cable. This module is designed to be compatible with Arduino, Raspberry Pi and any other microcontroller platforms.