ITEM NAME:M.2/NGFF to USB3.0 Port t Adapter Graphic Card Cable BTC Extender Adapter Card Product Description Description: M.2/NGFF to USB3.0 Port Mining Graphic Card Extender Adapter Card M.2/NGFF to USB3.0 Port t Adapter Graphic Card Cable Extender Adapter Card Features: Gold plated contact for better durability and conductivity. USB3.0 port brings up to 5Gbps data rate. With 80*22mm and 60*22mm screw holes to fit slot type of your PC. Converts M.2/NGFF to USB3.0 port. Specification: Port: USB3.0 Material: PCB Supported OS: All Size: approx. 80 X 22 X 18 mm/3.15 X 0.87 X 0.71 in Included: 1 X Adapter 1 X Screw.Converts M.2/NGFF to USB3.0 port. Port: USB3.0. Included:1 X Adapter. Size: approx. 80 X 22 X 18 mm/3.15 X 0.87 X 0.71 in. With 80 22mm and 60 22mm screw holes to fit slot type of your PC. If item is defective after 3 months, you can still send it back to us.