This handy 2 x 20 IDC Box header is the appropriate connector for our 40-pin GPIO cable. By soldering the perforated board, you can pass a GPIO cable from your Pi A+/B+/Pi 2/Pi 3 to the socket. This is the same plug that comes with our Pi Cobbler Plus or Pi T-Cobbler Plus, but without the PCBs or anything else. This plug only works for Raspberry Pi Model A+/B+/Pi 2/Pi 3 GPIO cable. It does not work with Raspberry Pi Model B GPIO cables. This is only the socket. Technical specifications: 9 mm x 58 mm x 12 mm, weight: 4.5 g.