This is ready breakout board with four (4) 5V activated relays, with 3 screw terminals for each relay (NO, NC, COM) and screw terminals for control signal from microcontroller such as Arduino. Each control signal is opto-isolated, protected. It even comes with activation LED indicator for each relay. Easy to use and suitable for beginner, and of course student too.
If you need to control AC or high current, high voltage load, this will be the perfect board.