This keyboard & mouse combo is just the job for keeping an uncluttered desktop. Simply attach the KB to your Pi with the lead USB lead included and plug the mouse into one of the three USB ports on the KB, nice and tidy. The KB is the same size as the pi400, which I had, initially, purchased the sleeve for. However the 400 is in daily desktop use, so the new KB fits the sleeve perfectly for protection. Great quality once again from Rpi and excellent service from "The Pi Hut" fully recommended.