that size is good for a small sized E-ATX I think its almost the same size as the 400C. Wish they added about 1-1.5 inches to the top to get a rad and at least fans on one side. they cases look really good. I am currently looking for a new case to replace my 760T to something a little smaller and was hoping to stick with Corsair as there customer service is awesome. I have a Z97 classified that's 265ish MM long or 10 3/8ths or so. don't want any disk drives anymore in the computer.