The Pi-Face Digital Interface is a plug-in accessory for the Raspberry Pi that simplifies the process of connecting external devices to the Raspberry Pi.

The official reseller channel for Raspberry Pi includes only a small number of giant, global distributors. If you need the best price, you need to buy from them. I buy them retail and am selling them marked up a bit. Buying your Raspberry Pi from Hobby Engineering may save you some time, hassle and shipping costs but you will not get the best possible price on the board itself. I hope you understand.

Brand:	Raspberry Pi Foundation
Brand Part Number:	2218566
Our Part Number:	h4900