1. 4-Port USB Expansion: The USB3.0 PCIe card allows users to add 4X USB ports (2 USB-A and 2 USB-C) to their desktop computer through a PCI Express (1X) interface. 2. With 15Pin SATA Power Supply Interface. 3. Data Safety and Stability: Featuring the high-performance NEC D720201 USB 3.0 host controller. 4. Wide Compatibility: This PCIe expansion card is compatible with PCIE 3.0, PCIE 2.0, and PCIE 1.0 motherboards, and supports operating systems such as for Windows XP, 7, 8, 10, 11 and for Linux. 5. Easy to Install: With a size of 12x6.7x6.5cm and made of PCB material, this expansion card is easy to install and use, making it simple to expand your computer's USB capabilities. Specification: 1. Complies with PCl Express Basic Specification Revision 2.0 2. Gen1 compliant with the Universal Serial Bus 3.1 specification 3. Compliant with USB to SCSI Protocol Revision 1.0 4. Compatible xHCI (Scalable Host Controller Interface) Specification Revision 1. 5. Supports simultaneous operation of multiple USB 3.2, 3.1, 3.0, USB 2.0, and USB 1.1 devices 6. Supports USB data fer rates of 5G/480M/12M/1.5Mbps 7. Built in SATA power interface, USB power output: up to 5V 1.5A Parameter: Product name: Type-A+Type-C interface expansion card External interface: PCI-E 1X (compatible with 1X, 4X, 8X, 16X) Interface rate: USB3.2 gen1 5Gbps Supported chassis: 2U small chassis/4U large chassis Main control chip: D720201 System support: WINXP WIN7 WIN8 WIN10 WIN11 LINUX Driver description: Driver-free for systems above WIN10, the speed will be faster than the for original-driver Note: 1. The USB interface is a USB3.2 GEN1 5Gbps (for-original USB3.0) standard interface! 2. The expansion card is equipped with a DC-DC step-down IC, which can work without plugging in the SATA power cable. 3. Different production batches may have different silk-screen batch numbers, but