Aside from the board, you also need a power supply with a micro USB connection, capable of 2.5A of output (realistically, you can use a smaller supply, but 2.5A means you shouldn&#x27;t have to worry about power limits).<p>You need a MicroSD card at least 8GB in size, although larger is always nicer. Since it&#x27;s the main storage for the device, faster is better.<p>An ethernet cable, if you don&#x27;t plan on exclusively using wireless.<p>A case: the Pi3 is the same layout as the Pi2, so a previous-generation case will be fine.<p>An HDMI cable, if you won&#x27;t be using it exclusively headlessly (or a cable with TRRS on one end and red+yellow+white RCA connections on the other end, if you&#x27;re going the analog route).<p>A USB or bluetooth keyboard and mouse.<p>That would be my shopping list, if I didn&#x27;t have those things laying around at home.