Features Standard Pi Pico female header for direct attaching Pi Pico (if male header soldered), or just through jumper wires Four sets of 2x20 male header, allows connecting more Pi Pico expansion modules USB power input connector, ensures sufficient power supply for multiple expansion modules Clear pinout labels on the front side, easy to use Immersion gold process, beautiful & practical, stunning aesthetic looking Part List 1. Pico-Quad-Expander x1