Compatible with all Raspberry Pi series:for Raspberry Pi 1 Model B+, Pi 2 Model B, Pi 3 Model B, Pi 3 Model B+, Pi 4 Model B, Pi Zero, Pi Zero W, Pi Zero 2 W | All 40pins of Raspberry Pi are transferred out by screw terminals, which is convenient for cable access. Does not occupy other space, very convenient when doing DIY circuits. | 2x20 positions header connect to Raspberry Pi board. Terminal block pitch is 2.54mm. | Silk screen sticker for easy identification. Wire gauge range is 18 to 28AWG. Stripping length is 4.5mm. | Package includes:1 x Mini Terminal Breakout Board For Raspberry Pi;1 x Silk-Mark Color Stickers;1 x Acrylic Pannel;4 x M2.5 Copper Pillar;6 x M2.5 Screw;2 x M2.5 Double Pass Copper Pillar; 2 x Nut; 1 x Screw Driver