Raidsonic IB-NAS5220-B. RAID levels: 0, 1, JBOD. Size: 88.9 mm (3.5 "), Hard drive interface: Serial ATA. Interface: 2x USB 2.0, 1x Gigabit RJ-45 Ethernet. Compliance industry standards: EXT2, EXT3, FAT32. Compatible operating systems: Windows 98SE/NT/2000/XP/2003/Vista/7 Linux Redhat/Fedora/Suse Mac OS 10.2+