If you have a desktop PC, you may not want to put it on the floor. Case in point, there are short PC cases that are more suitable than most for use on a desk. Here are some of the best of them.
https://www.techspot.com/bestof/cases-on-desk/?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/bestof/cases-on-desk/?utm_source=dlvr.it&utm_medium=blogger