Onboard square USB interface, stable connection. 1 Relay Module. Relay size: approx. 6.2 4 1.5 cm/ 2.44 1.57 0.59 in. Adopt for technology, no need for any driver, plug and play. Fixed hole center distance: approx.
This product would be ideal for applications requiring precise control of multiple peripherals, such as computer expansion cards or other I/O devices, when running off a 5V power supply.
