Will this fit in my Computer Tower case?

I bought an HP Elite 270f a while back and I am looking to buy a new motherboard since I could use the extra PCI Express ports for 4 way crossfire or SLI and what not (TUNER, WIFI, etc) I stumbled upon an Asus - Rampage III Extreme ATX Motherboard 6 Gbps (Socket LGA 1366) and I saw that it was the same type of motherboard since mine is triple channel as well but I wanted to confirm that it would fit.