Macworld At a glance Expert's Rating Pros ・Up to 48TB of capacity ・550MBps transfer rates in RAID 0 ・Beefy Construction ...

A controller card that supports one or more RAID configurations. Originally only for SCSI drives, RAID controllers became very popular for PATA, SATA and NvMe drives. See RAID. THIS DEFINITION IS ...

After a failed drive is replaced, the RAID controller rebuilds the lost data from the other two drives. RAID systems often have a "hot" spare drive ready and waiting to replace a drive that fails.