Powered and Controlled from the USB bus.
Similar to the USB-RLY16 module above, the USB-RLY16L uses latching relays and is completely powered from a standard USB bus, no separate power supply is needed. Latching relays stay in their last position when power is removed.
Relays - 8
Power - Powered from standard USB bus
Control interface - USB
Relay current - Up to 16Amp @24vdc or 250vac
Connections - Screw Terminals for Position 0, Position 1 and Common contacts.
Linux with Mono and Xbuild (C#) - Simple example of switching the relays