Yes, under Linux Debian the drives in the FANTEC QB-35US3-6G can be displayed and mounted individually so that a software RAID can be created with `mdadm`.

- The enclosure supports up to four SATA I/II/III hard drives, each of which can be used, replaced or expanded separately.
- Debian, like other Linux distributions, supports the use of multiple hard disks and enables the creation of software RAIDs with `mdadm`. It is important that the system and the hard drive controllers support the use of hard drive capacities, especially when it comes to larger hard drives.
- As the enclosure does not provide any RAID functions internally, but only provides the physical accommodation and connections for the hard disks, a software RAID can be set up under Debian without any problems.