Atto Celerity FC-42XS. Host interface: PCI-X, Output interface: Fibre Channel. Data transfer rate: 4000 Mbit/s. Operating temperature range (T-T): 0 - 45 °C, Storage temperature range (T-T): -40 - 70 °C, Operating relative humidity range: 5 - 95 %. Connectivity technology: Wired, Compatible operating systems: Windows Server 2003, 2008, XP, Vista, 7 Red Hat Linux (2.4 and 2.6 kernel)