Sonnet Fusion DX800RAID 8-Bay Expansion, 8TB. Controller interface type: Sonnet PCI Express, 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+ / 10.5 Windows Vista, Server 2003 / XP Pro. Operating temperature range (T-T): 5 - 40 °C