This PCI-E USB adapter is made of solid material, which can withstand use.Features the aluminum alloy material, which has high durability, not easy to deform. Fine workmanship, ensures practicality.Features-Color:Assorted Color-Material:Aluminum alloy-Size:12.00X7.00X2.00cm/4.72X2.75X0.79inMode: PCI-ECompatible slots: PCI-E /x4/x8/ 6USB interface: 2 x USB 3.0 portsTransfer rate: USB 3.0, 5Gb/s- Upgrades desktop to USB 3.0 interface for faster data transfer.- Uses PCI-E interface for higher stability and better compatibility in use.- Supports multiple operating systems, easy installation, simply plug into PCI-E slot.- Can provide a secure and stable connection, preventing data loss and damages.- With fine workmanship, simple in design and very practical in use, easily win your favors.Package list: 1 x expansion card