48-bit LBA Support: recognizes drive capacities exceeding 137 GB each
Data Protection Features: Mirrors data to second drive or drive pair for RAID 1 and RAID 0+1; offers hot spare support for instant rebuild of failed drive in 2-drive RAID 1
Advanced Data Features: Bus mastering offloads data I/O handling from host CPU; CRC error-checking of Serial ATA and Ultra ATA drives for data reliability during transfers; tagged command queuing and elevator seek for optimized data handling