Dimensions(L x W x H) 15.00" x 7.50" x 13.80"
It looks cramped but really it's not. It was easy to work inside the case. The camera doesn't show the depth of the case very well. The sata cables are above the cpu fan by 3 inches. There's lots of air movement, no fans are blocked. I haven't see the drives go above 36c in the Icy's. It's very quiet, quieter than the case I migrated from.
I used the Biostar A760G M2+ (8.6" x 7.9" ) but I think my slightly bigger Asus M4A78L-M (9.6" x 8.8" ) might have fit.