Features: 1.SFF?8639 is a solid?state or mechanical hard drive interface for 2.5?inch storage, which has PCI?E/ for SATA/for SAS signals. 2.SFF?8639 has 6 channels. 4 channels are exclusively for PCI?E to directly connect to the CPU; 2 channels are exclusively for SAS and for SATA to connect to HBA/RAID controllers and chipsets. 3.Precise PCB design, fully suppress EMl, complete signal, good performance and long service life. 4.High?quality resin material, hard, durable, corrosion?resistant, and can be used for a long time. 5.Sophisticated production, excellent quality, stable performance and high work efficiency will bring you more convenience. specification:Condition: 100% Brand New Item Type: U.2 Adapter Material: Resin Color: Black Product Interface: PCI?E4XU.2 SFF?8639 Support System: For WIN7/ for WIN8, for WIN10 32/for 64BIT/for OS X/ for linux NWE S0 Installation Conditions: 1.PCI?E4X8X16X 2. Please install for WlN10 system, for WIN7 needs to install the driver, the speed cannot be improved. 3. The motherboard that does not support the NWWE protocol cannot be used as a system disk, only as a storage disk For INTEL Motherboard Chipset: B250B150H170Z170, as long as the motherboard has an M.2 interface, it generally supports NVME. For AMD Motherboard Chipset: The support of B350X370X399A320 is not supported before, which means that NVME must be supported by for RYZEN CPU motherboard. PackageList:1 x U.2Adapter 1 x Cable 5 x Screw NoteThis card can support 2.5?inch for SATA hard disks, and for SATA cable must be connected to the king board for SATA port when using it. Note that the motherboard must support PCI?E3.0 to reach high speed.