Welcome to our store! 5GBPS TRANSFER SPEED: This desktop PC expansion card is USB 3.1 compliant and supports low-speed, full-speed, and high-speed transfers up to 5 Gbps. MULTIPLE INTERFACE OPTIONS: The 5-port USB 3.1 PCIe expansion card features 2 x USB A and 3 x TYPE C ports, conveniently allowing you to connect multiple USB devices to meet various needs. COMPATIBLE SYSTEMS: The USB 3.1 expansion card is compatible with iOS, supports PCI Express2.0 X 1 interface, and is compatible with multiple operating systems such as Windows 7 8 10 and OS X 10.8.2. HIGH CURRENT OUTPUT: The USB 3.1 PCIe expansion card adopts high current output, with a maximum current of up to 900mA for each USB3.0 port, providing stable power to your devices. EASY INSTALLATION: The 5-port USB 3.1 PCI Express expansion card socket type is PCIe X4, X8, X16, requiring no external power, making it simple and convenient to install and use. Item Type: 5-Port USB 3.1 PCIe Expansion Card Material: PCB Model: UP5300 Number of Ports: 2 x USB A, 3 x USB Type C Transfer Rate: 5Gpbs Socket Type: PCIe X4, X8, X16 Compatible Systems: For Windows 7 8 10 and for OS X 10.8.2 External Power Supply: No external power required Includes: 1 x 5-Port USB 3.1 PCIe Expansion Card 1 x Driver CD-ROM 1 x User Manual 2 x Screws Guaranteed Satisfaction: Customer satisfaction is our top priority. If you encounter any issues with the product, please contact the seller immediately. We are committed to providing satisfactory after-sales service.