This is a universal GPIO extension board compatible with Raspberry Pi Model B+/A+/A, Raspberry Pi zero/zero W. One row of boards can change into 3 rows, which making working easier and has a worthy design. It is convenient to connect Raspberry Pi board and other sensor components, using on the screen connected with GPIO. It includes multicolored Dupont wire 20pin male to female breadboard. You can fix the board to Raspberry Pi board or others with ribbon jump cableand.