The Adaptec Serial ATA II RAID 2420SA card is a four-port controller that supports SATA or SATA II direct attached disk drives. It features the Adaptec AIC-8210 SATA RAID-on-Chip (ROC) ASIC and Adaptec RAID Code (ARC) with standard RAID 0, 1, 5 and 10 as well as an optional Advanced Data Protection Suite. With the industry's most advanced feature set, the Adaptec 2420SA provides the highest level of data protection.