Fangrui Product Details Features: High Gold Plating: Strong Oxidation Resistance, Good Conductivity And Wear Resistance. 4-layer Circuit Board: It Has Very Strong Anti-interference Ability, Effectively Ensuring The Stability Of Pci-e High-speed Signal Transmission, Data Integrity And Impedance Matching. The Bottom Of The Product Is Reinforced To Protect The Product From Deformation. Multi-system Compatibility, Compatible With Xp,vista, 7 (drivers Need To Be Installed), 8, 10 System Comes With Drivers. Specifications: Product: M.2 Pci E To Usb3.0 Type -ec Double Interface Expansion Card Input: M.2 M Key Compatibility: Usb2.0, Usb1. 1 Product Size: 80 X 22mm Use Steps: Step 1: Plug In The Wire First. : Install The Expansion Card Plugged In With Wires To The Motherboard. Matters Needing Attention: Electrostatic Protection Solder Pins, Parts And Gold Fingers Of Products Are All Conductive Parts And Connected To The Main Control Chip. When Touching By Hand, The Static Electricity Of Human Body Be Conducted To The Main Control Chip