Function: 1. [High Data Transfer Speed] PCIe to USB3.2 Gen2 expansion card, via ultra-fast type-c interface, data transfer rate do 10 Gb/s to meet the needs of high-speed transmission. 2. [High Performance] PCIe do Type-C ma dual-chip design, supports synchronous transmission of multiple devices and effectively performs multitasking work. 3. [4 ports] 1 type-c port with a transmission rate of 10 Gb/s, the other 3 ports share another total transmission speed of 10 Gb/s, up to do 20 Gb/s. Each port supports a data transfer rate of 10 Gb/s when used. 4. [Wide Compatibility] Universal PCI E interface for motherboards with X4 X8 X16 slot, compatible with Windows 7 8 10 and OS X 10.8.2. No ma need for additional power supply, convenient and practical. 5. [Safe to use] The PCIe card is easy to install and draws power directly from the PCIe connector. 5W power is provided by the USB type A port and do 15W type C USB port. All ports are short circuit protected. 6. [Professional] Thanks to the use of premium chips, the PCI Express Type-C expansion card provides a professional solution for expanding computer ports with excellent circuitry and security design. Specification: Item Type: PCIe do Type-C Expansion Card Material: PCB Number of Ports: Type C x 4 Transmission Rate: 10Gpbs Socket Type: PCle X4, X8, X16 Compatible system: for Windows 7 8 10 and OS X 10.8.2 Driver mode: without driver (only for Windows 7 system, install the driver when using) External power supply: no external connection required How to use: Plug and play. List of packages: 1 x PCIe to Type-C Expansion Card 1 x Manual 1 x Driver Drive 2 x Screws