The PiFace Relay Extra plugs into the Extra port on PiFace Relay+ and adds 4 additional relays! It's controlled by the same library and command structure. Alternatively you can plug the PiFace Relay Extra straight into a breadboard and control the relays directly. Note: The PiFace Relay Extra requires a PiFace Relay+ board to work your Raspberry Pi. Features * 4 onboard relays (Max switching values: 1A 20V) * 4 indicator LEDs * 4 GPIO * Easy to use software * Easy connection with screw terminals * Compact size * Raspberry Pi® HAT footprint when used with the PiFace Relay+ * Can be used directly in breadboards, prototyping and custom designs Information Sheet * PiFace Relay Extra Getting Started Guide https://elecena.pl/product/22718545/piface-relay-extra-discontinued 2023-03-07 https://elecena.pl/product/22718545/piface-relay-extra-discontinued 2024-09-19