Expansion / GPIO board Raspberry Pi 2/3 - cascading 40 pins
Product information:
Expansion board for Raspberry Pi 2/3, all contacts are equipped with a quick contact. Simply press the contact and insert the wire. After releasing, the wire remains attached and can then be released just as easily.
With 2 40-pin GPIO connectors for daisy chaining to other boards.
In the middle there are additional pins with power and ground.