If I remember correctly, my calculation for 212 Plus clearance when I was shopping for a case was minimum 7.5". I ended up buying Antec Three Hundred with 8.1" W to be sure. Below 7.5" on spec, depending on the actual structure, I think it will be border line, even if it may fit. Some cases have a little more elevation between the back-side panel and motherboard, which gives less clearance, so you cannot judge solely on the printed spec.