Raspberry Pi 400 and the Waveshare RPi 400 GPIO Header Adapter

Free STL file Case for Waveshare GPIO Header Adapter, for

Waveshare 400 GPIO Header Adapter Compatible with

PiDOCK 400--Raspberry Pi 400 Compatible Dock & Display

How do I power my Raspberry Pi?

Monk Makes GPIO Adapter for Raspberry Pi 400 - RobotShop

PiDOCK 400--Raspberry Pi 400 Compatible Dock & Display

An interface adapter module specially designed for Raspberry Pi 400 Color-Coded Header, Easy Expansion Pictures are for reference only, expansion

Waveshare GPIO Header Adapter for Raspberry Pi 400 Interface Extension

Waveshare Raspberry Pi 400 GPIO Header Adapter, Header Expansion

Raspberry Pi 400 GPIO Header Adapter, Header Expansion, 2x