The R220PL_USB USB Relay is equipped with firmware built into the board that will allow you to send commands to the board to
energize the relay on the board. The USB interface will allow you to connect the board to the USB port on your computer.
The board will mount as a virtual COM port.
R220PL_USB The Ideal Choice
The R220PL_USB USB Relay allows you to program in almost any language and has the ProXR Command Set, the industry leading
command set for sending commands to control relays and read the inputs on the board.