Internal Connectors: 4 x SATA II RAID: RAID 0/1/5/10 JBOD Operating Systems Supported: Windows 2000/Server 2003/XP 32-bit/XP 64-bit/Vista 32bit/Vista 64-bit Features: Silicon Image SIL3124 Serial ATA (SATA2) host controller chipset. Compatible to PCI specification. Support PCI bus-master access. Support Plug & Play and hot Plug. Compliant with Serial ATA II specification, the extension of SATA 1.0a Revision 1.1. Compliant with Gen2i, Gen2m SATA II Electrical speciation Revision 1.0. Backward compatible to SATA 1.0 specification. Support Native Command (NCQ), Port Multiplier, First Party DMA. Package Contents: 4 channels PCI serial ATA II Raid host controller card User manual 2x SATA cables CD driver Parts: Lifetime limited Labor: 1 year limited