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 via a PCI Express (1X) interface. With 15Pin SATA power supply interface. Data and Stability: With the high-performance D720201 USB 3.0 host controller. 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 XP, 7, 8, 10, 11, and for Linux. 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 capacity. Specification: Complies with PCl Express Basic Specification Revision 2.0 Gen1 compliant with Universal Serial Bus 3.1 specification Compliant with USB to SCSI Protocol Revision 1.0 Compliant xHCI (Scalable Host Controller Interface) Specification Revision 1. Supports simultaneous operation of multiple USB 3.2, 3.1, 3.0, USB 2.0, and USB 1.1 devices Supports USB data transfer rates of 5G/480M/12M/1.5Mbps 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 Speed: 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 original driver Note: The USB interface is a USB3.2 GEN1 5Gbps (original USB3.0) standard interface! The expansion card is equipped with a DC-DC step-down IC, which can work without connecting the SATA power cable. Different production batches may have different silk-screen batch numbers, but this does not affect the use. Color: Black Material: PCB Package Contents: 1 x PCI-E Expansion Card Adapter 1 x Low Profile Bracket 1 x Driver CD Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real one. The measurement allowed error is +/- 1-3cm.