The HighPoint RocketRAID 2322 PCI-Express x4 SATA II RAID Controller is the best external storage solution available today. With dual mini-SAS to SATA connectors on the RocketRAID 2322 will support external storage enclosures up to 8 drive bays. The RocketRAID 2322 offers a PCI Express x4 host side interface that is upward compatible to PCI Express x8 and x16 slots and offers the fastest external storage solution availability today. PCI Express will deliver data transfer in both directions simultaneously with its serial data transfer system and brings with ithigher clock speeds. The HighPoint RocketRAID 2322 supports two external Mini-SAS (Serial Attached SCSI) connectors that attach to the HighPoint's X4 or X8 external storage enclosures.