IMTY 4 If you are looking for a solid 2 disk RAID enclosure, this is the one to get. It is very easy to set up and works the first time around.All you need to do is set the dip switch as RAID 0 or a RAID 1, then format the disks to the selected RAID.If you want to use this external HDD box on both the Mac and the Windows PCs, format as exFAT. This is compatible with both systems. With NTFS, Mac can only read, not write.