A general purpose USB Relay controller for connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC. USB Relay controller allows a PC to control a single external device using simple RS232 commands. Relay is fully powered from the USB bus. Free download USB relay board control software.

The general purpose of the Relay board is connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC.

A general purpose USB Relay controller for connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC. USB Relay controller allows a PC to control external devices using simple RS232 commands. Relay is fully powered from the USB bus. Free download USB relay board control software.

A general purpose USB Relay board (controller) for connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC. USB Relay Board allows a PC to control devices using simple RS232 commands. Relay is fully powered from the USB bus.

A general purpose USB Relay board (controller) for connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC. USB Relay Board allows a PC to control a single external device using simple RS232 commands. Relay is fully powered from the USB bus. Free download USB relay board control software.

A general purpose USB Relay controller for connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC. USB Relay controller allows a PC to control a single external device using simple RS232 commands. Relay is fully powered from the USB bus. Free download USB relay board control software.

The general purpose of the Relay board is connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC.

This is discontinued product.