BROADCOM - IMSOURCING MegaRAID 9280-4i4e SAS Controller - 6Gb/s SAS - PCI Express 2.0 x8 - Low-profile - Plug-in Card - RAID Supported - 0, 1, 5, 6, 10, 50, 60, JBOD RAID Level - One Mini-SAS SFF-8087, One Mini-SAS SFF-8088 - 8 Total SAS Port(s) - 4 SAS Port(s) Internal - 4 SAS Port(s) External - PC, SPARC, Linux - 512 MB - Windows Vista, Windows Server 2008, Windows Server 2003, Linux, Solaris, FreeBSD OS Supported Operating System: