Hard Drive Enclosure Aluminum 2 Bay RAID Enclosure with Fan for 2.5/3.5 SATA
It ensures you won't lose your files if a drive fails. How to Set RAID Mode ?. Normal Mode: Switch 1 and 2 are both off ( Switch 1 and 2 are both down). RAID 0 is best used for storing temporary files or files that you have backed up elsewhere.