FeaturesAdds 2 Serial ATA II RAID ports (1 external and 1 internal) to your computerInstalls easily into any PCI Express slotFuture-proofs your computer for tomorrow's bandwidth-intensive applicationsPRODUCT DETAILSThe perfect solution for adding Serial ATA II ports to your computer.The new PCI Express interface effectively quadruples the amount of available computing bandwidth, resulting in faster music downloads, smoother streaming video, and lightning-fast access to mass-storage devices.Adds 2 Serial ATA II RAID ports (1 external and 1 internal) to your computerInstalls easily into any PCI Express slotFuture-proofs your computer for tomorrow's bandwidth-intensive applicationsIncludes a lifetime warrantyNOTE: Will not fit into a standard PCI slotSystem Requirements: Windows®-based computer with available PCI Express slot; Windows 2000, XP, 2003 ServerSpecificationDevice Type:Storage controller (RAID) - plug-in cardHost Bus:PCIe x1Storage ControllerInterface:SATA 3Gb/sData Transfer Rate:300 MBpsChannel Qty:2Max Storage Devices Qty:2Expansion / ConnectivityInterfaces:1 x SATA 3Gb/s ( external ) 1 x SATA 3Gb/s ( internal )Compatible Slots:1 x PCI Express x1MiscellaneousWorks with Windows Vista:Software and devices that carry the Works with Windows Vista logo have been tested for baseline compatibility with PC's running.Software / System RequirementsSoftware Included:Drivers & UtilitiesOS Required:Microsoft Windows 2000 / XP, Microsoft Windows Server 2003