DescriptionFeatures:100% and high quality4-Port SATA III PCI-e Version 2, PCI-E x4 Bus Type Slot Controller Card, HyperDuo, Software RAID.Ports: 4 internal 6Gb / s SATA ports.Complies with pci-express v2.0 specification and is Compatible with pci-express v1.0.Complies with Serial ATA 3.0 specification.The pci-express x4 interface (for selected models) is compatible with pci-express x4, x8 and x16 slots.Supports communication speeds of 6.0 Gbps, 3.0 Gbps, and 1.5 Gbps.Hot plug and hot swap.Supports Native Command Queue (NCQ).Supports port multiplier FIS-based switching or command-based switching.Compatible with SATA 6G, 3G and 1.5G hard drives.RAID function:Stripe RAID 0 (stripe size: 32K, 64K).RAID 1-Disk Mirror.RAID 10-Mirror Stripe (Stripe Size: 32K, 64K).HyoperDuo Safe (mirrored protection) or capacity-cost (optimized)Note: it does not support RAID in PM.Software RE-Equipment:Windows XP / Vista / 7/8/10, Windows Server 2003, 2008, 2008 R2, Linux 2.6. x and higher (AHCI device driver is a built-in feature). Package Includes:1PC x PCI Express to 4-Port SATA3.0 Raid Controller1PC x Low Profile Bracket1PC x Driver CD Specifications:Product Name: PCIE SATA Raid ControllerMaterial: ABSColour: BlackChip: 88SE9230 Interface rate: 6GbpsBus interface: Pci-express 4.0 X4 X8 X16Connector: 4 x SATASize: approx. 85x65x15mm/3.35x2.56x0.59in note:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you