Howdy keyboard cowboys, are you surfing the information superhighway with a Pi 400? Want a cool heads-up display, or maybe you need to wire up some NeoPixel wetware...?
Well, ADAFRUIT just fenced 12 megabytes of ram and some angled socket header from the underground hacker club next to the chatsubo, and it's a major upgrade to our extender board - now you can jack in any Pi bonnet into the back of your Pi 400's skull at a cool angle, perfect for augmenting your deck! We also give you two STEMMA (JST 3-PH) connectors on GPIO #18 and #13, and twin STEMMA QT I2C port plugs, for additional upgrades (cables sold separately)
Comes completely pre-assembled and tested so you don't need to do anything but plug it in. Works best with the Pi 400 computer.
The demo images show it with a 128x32 OLED bonnets plugged in. Any bonnet/mini-HAT/pHAT etc should work just fine as every pin is duplicated from input to output.
Here is one that s reccomended