Features: 1.Support Dual Interface Protocol: Support U.2 SDD (no need to connect directly) and SATA SDD (need to connect SATA cable). 2.High Speed: Equipped with PCIE3.0 X4 interface Gen3 rate, the U.2 hard disk speed to play to a higher level, so you can read and write transfer to enjoy the prime speed experience! 3.U.2 Interface: U.2 interface adopts two SATA 6 Gbit/s interfaces and one 4 pin mini SATA interface. The small ports can only be connected to PCIE cables to ensure backward compatibility. 4.Compatible Systems: Intelligent compatibility, no driver required, compatible for Windows, for OS X, for Linux system use. Warm tips, need to use this adapter with U.2 solid state disk as a system disk need to support PCI express protocol to use the computer motherboard. 5.Durable and Safe: Electronic components, one piece molding, premium inductors, 25V high voltage capacitors, reserved half of the input voltage margin, to prevent the situation of insufficient power supply. specification:Item Type: PCIE to U.2/SATA Adapter Card Material: Environmental Glass Fiber, Metal Stopper Function: Data Transfer, Mounting System Support Hard Disk: 2.5 inch U.2 SATA SAS (with SATA Logo Available) Hard Drive Transfer Interface: PCIE X4 Compatible X8 X16, SATA3.0 Product Interface: U.2, SFF 8639 Supported Systems: for Windows 7 8 10, for Linux, for OS X 10.9 Or Above PackageList:1 x Adapter Card 1 x Screwdriver 1 x SATA Data Cable 2 x Large Screws 6 x Small Screws 1 x User Manual