“Does 'just what it says on the tin', and boots up fresh OS when inserted into a pi, it takes the faff out of setting up one myself, and not much more expensive than buying a single regular micro SD card.
I would definitely recommend for hassle free setup!”
“Worked fine, turns out however I didn't actually need it as the raspberry Pi imager can write images directly to external USB3 devices, which are immediately bootable on the Pi-400.”