Multi-functional GPIO Expansion Board
"It is designed to be customized GPIO multifunction expansion board for the Raspberry Pi. It is easy for the users to connect enrich peripheral modules to Raspberry Pi board such as 4-Digit Display module, Serial Bluetooth module, Serial MP3 module.etc.Compatibility: compatible with Raspberry Pi 2 model B and Raspberry Pi 3 model B
Lead out all the pins and the pin pitch is 2.54mm
Screwless terminals lead out 24 pins, wiring is very convenient.