*2-Channel 5V Computer USB Smart Switch Controller PC Relay Drive Module Expansi
£10.48
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.
