Features: Host Interface: PCI Express x4RAID Supported: YesRAID Levels: 0,1,5,1E,5EE,6,10,50,60Total Number of SAS Ports: 2Number of SAS Ports (Internal): 1Number of SAS Ports (External): 1Form Factor: Plug-in CardPlatform Supported: PCLimited Warranty: 1 Year