This adapter add 8 SATA III port to your PC and that brings server-class features to the desktop.PCI Express 2.0 x2 interface doubles the bandwidth of the existing PCI Express bus for faster data throughput. Using the onboard firmware, the SATA drives attached to this controller can be easily configured as 8 individual ports with this Expansion card. Non-RAID standard SATA controllerSATA ports are bootableSupports Optical DrivesSupports 3TB/4TB GPT drivesMarvell 88SE9705 chipset remark : it is normal that system hangs for 20-30 seconds if no HDD/SSD is connected to the card,it is not a defect.• Compliant with PCI-Experss Specification v2.0 and backward compatible with PCI-Express v1.x • Compliant with Serial ATA Specification 3.0 • PCI Express x2 interface, and 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. • Supports Windows 8 (Uses Windows 7 Driver)• Supports Windows Server 2012 (Uses Windows Server 2008 driver)• Available PCIE 2.0 2x/4X/8X/16X slot ( can not fit to 1X slot ) • Supports Windows® XP/Vista/7/8/Server 2003/2008 R2, Linux 2.6.x and above, Mac OS 10.X • 1 x SATA III (6Gbps) 8-port PCI-Express Controller Card • 1 x Low Profile bracket• 1 x User Manual • 4 x SATA Cable • 1 x Driver CD Check out my other items!On Jun-17-14 at 07:22:06 PDT, seller added the following information: