Features: 1.Fast Transmission: PCI Express adapter card complies with USB3.0 version 1.0, supports low speed, full speed and high speed transmission, the maximum transmission speed is up to 5Gbps to meet your data transmission needs. 2.Multiple Interface Options: PCI Express network adapter has 3 USB A and 2 TYPE C ports, convenient for you to connect multiple USB devices to meet different needs. 3.Strong Compatibility: PCI Express adapter card is compatible with for OS X system expansion card, supports PCI Express2.0 X 1 interface, compatible with for Windows7 8 10 and for OS X 10.8.2 and other operating systems. 4.High Current Output: The PCIe network adapter has a maximum current of up to 900mA per USB3.0 port, providing a stable power supply for your devices. 5.Easy Installation: PCI Express network adapter has socket types of PCIe1, X4, 8, 16, no external power supply is required, simple and convenient to install and use. specification:Item Type: PCI Express Adapter Card Material: PCB Interface Number: USB Ax3 USB Type CX2 Transfer Speed: 5Gpbs Socket Type: PCIe x4, x8, x16 Compatible System: for Windows 7 8 10 and for OS X 10.8.2 External Power Supply: No External Power Required PackageList: 1 x Expansion Card 1 x Driver CD 1 x Manual 2 x Screws