Raspberry Pi GPIO Cascade Expansion Board Module

From the shop's description

Raspberry Pi Cascade Expansion Board Module Universal GPIO expansion board for Raspberry Pi 4/3/2/1. Multifunctional GPIO Extension Board multiplexing multiple interfaces contrast. It’s a nice tool for Raspberry Pi. Plug and play, GPIO Python Library Reference use. Excellent quality and Printing process. These jumper caps are pretty cool, which makes your experiment easier and convenient. Package Includes: 1x Expansion Board Documents: GitHub Related Products: Raspberry Pi