I want to add an internal PERC controller to a Dell R720. Preferably one that doesn't chew up a PCI-E slot. My concern is I also need the cable to connect the back plane. And It needs to have a Battery Backup Unit. I'd rather purchase one aftermarket.
I think this might be the part needed with a BBU:
But I have no idea what internal cable I'd need for the 8 Drive 3.5 inch bay.