reader comments 111 with 82 posters participating, including story author Share this story Fully unboxed, we see the Pi 400 itself, a 247-page, full-color beginner’s guide, power supply, USB mouse, and one micro-HDMI-to-HDMI cable. Jim Salter Raspberry Pi 400 comes in an attractive pasteboard-sleeved box about the size of two or three hardback novels stacked ..