@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

G-Speed eS PRO Downloads

HighPoint RAID Controller

Mac Pro Only, 10.4.x to 10.5.x DOWNLOAD
Mac Pro Only, 10.6.x and above DOWNLOAD
Windows 2000/XP/Vista DOWNLOAD



ATTO ExpressSAS RAID Adapter

All RAID Configuration Scripts DOWNLOAD



Firmware Updates for 3TB Support

G-SPEED eS PRO Enclosure Firmware Update (V4.10.3.0) DOWNLOAD
G-SPEED eS PRO Mini-SAS Controller Firmware Update (V4.10.3.0) DOWNLOAD