Pi Panel Mount Pluggable Terminal Block Breakout Module - for Raspberry Pi. If you want to build a Raspberry Pi project with outer case, and need external wiring, this will be a good choice. The item has been soldered and assembled. Terminal block pitch 3.5mm/0.138", wire size range 26AWG to 16AWG, strip length 5mm, screw M2 steel, pin header and cage copper. 2x20pins IDC connector, pitch 2.54mm/0.1". FR-4 fiber glass PCB, dual copper layers, pads grid pitch 2.54mm/0.1", hole diameter 0.8mm. NOTE: the item not include Raspberry Pi and flat ribbon cable. Datasheet: https://www.czh-labs.com/tmp/madeimg/datasheet/d-1143.pdf