GPIO expander for Raspberry Pi Pico, with 1x Raspberry Pi standard 40PIN header for HATs, 1x Pico 2×20PIN header. Allows connecting both Raspberry Pi HATs and Pico expansion boards. ^^Standard Raspberry Pi Pico female header for direct attaching Raspberry Pi Pico (if male header soldered), or just through jumper wires^^USB power input connector, ensures sufficient power supply for multiple expansion modules^^Breakout RESET button, convenient for debugging^^Clear pinout labels on the front side, easy to use. Immersion gold process, beautiful & practical, stunning aesthetic looking.