Sonnet Fusion R800Raid, Controller 6 TB. Controller interface type: Sonnet PCI Express RAID, RAID levels: 4, 5, 6. Size: 88.9 mm (3.5 "), Hard drive interface: Serial ATA. Interface: mini-SAS. Compatible operating systems: Mac OS X 10.4.8+ Windows Vista, Server 2003, XP Pro. Operating temperature range (T-T): 0 - 35 °C