Features: 1.[5 Port PCI?E to SATA] Equipped with 5 SATA3.0 interfaces, conforming to PCI?E2.0 , supporting 5 SATA hard disk connections, and the transfer rate can up to 6Gbps. 2.[Good Heat Dissipation] Using alloy radiators to ensure stable chip temperature, this PCIE expansion card has a higher speed and more stable transmission. 3.[PCIE 4X Interface] As long as the motherboard has PCI?Express 4X/8X/16X slots, this adapter card can be easily expanded, plug and play, which is convenient and fast. 4.[Multi System Compatibility] This adapter card can be used for Windows(R)XP/Server 2003/Vista/7/8(32/64bit), for OS X, forLinux and other systems, widely compatible. 5.[Wide Application] PCIE to SATA 3.0 5 port expansion, compatible with most chassis on the market, this SATA 3.0 expansion card is only suitable for PCI?E motherboard slots, not for PCI slots specification:Item Type: PCI-E to SATA3.0 Adapter Card Material: PCB, Aluminum Alloy Color: Black Number of Interfaces: 5 SATA3.0 Input Interface: PCI-Express 4X PCl-E Slot Support: PCI-E 4X/8X/16X Transmission Speed: 6Gbps Installation Method: In Line PCIE Card Slot Operating System: For Windows(R)XP, for Windows Server, for Windows 2003, for Windows Vista, for Windows 7, for Windows 8(32/64 bit), for OS X, for Linux and Other Systems Are Universal. PackageList:1 x Adapter Card