@OuttaJoint if you have the HighPoint RR4522 you will need to download the latest firmware from our website
@OuttaJoint Capacity is determined by the type of raid controller you are using, what raid card do you have?
@OuttaJoint G-Speed eS Pro uses HGST Ultrastar hard drives and firmware should not be an issue when replacing all 4x hard drives.
@nypldance A quick search for "External Hard Drive Foam Storage Case" will get you some good results