The Adaptec RAID 1220SA card is a two-port, PCI Express x1 controller featuring Adaptec HostRAID - an integrated RAID technology that maximizes system performance and uptime. The Adaptec 1220SA supports up to two 3Gb/s Serial ATA drives, Native Command Queuing, and offers RAID levels 0, 1, and JBOD (individual drive). The Adaptec 48-bit logical block addressing (LBA) support enables use of disk drives exceeding 137 GB in capacity.