Dual GPIO Expander Module USB Power Connector Extension Board for Raspberry Pi PICO Two Sets of Male Headers  Feature: Based on for Raspberry Pi PICO interface design, it can be directly inserted after soldering the pin header, or it can be connected through the flat cable. Two sets of 2 X 20 pin headers are extended to facilitate access to multiple for Raspberry Pi PICO expansion boards. Clear pin function silkscreens are marked on the front to facilitate wiring use. Immersion gold craft, elegant appearance. Specification: Product Size: 103.5 X 55 X 5mm/4.07 X 2.17 X 0.2" Packing Size: 110 X 60 X 25mm/4.33 X 2.39 X 0.98" Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 X GPIO Expander Based on for Raspberry Pi PICO interface design, it can be directly inserted after soldering the pin header, or it can be connected through the flat cable. Two sets of 2 X 20 pin headers are extended to facilitate access to multiple for Raspberry Pi PICO expansion boards. Clear pin function silkscreens are marked on the front to facilitate wiring use. Immersion gold craft, elegant appearance.