- 3 -Chapter 1Product IntroductionNitroAV’s Vanguard IIIS supports either SATA and USB 2.0 interfaces whileproviding users an affordable and safe external RAID subsystem.Whether you are using the Vanguard IIIS in the studio, at home or in the office, itsupports RAID 1 function, through mirroring operation, it is able to ensure safety andreliability of data storage. The RAID 1 function also offers timed backup. TheVanguard IIIS also supports RAID 0 function, which combines the storage space of 2hard-disks which offers the fastest transfer rates.