Welcome to our store! This PCI Express card features 2 USB 3.0 interfaces, compliant with PCI Express system specifications. Transfer files at speeds up to 5 Gbps when connected to USB 3.0 peripherals. Supports USB hot plug and plug-and-play functionality, compatible with all USB devices including U-disks, USB external hard drives, MP3 players, external optical drives, digital cameras, and more. Applicable slots include PCI-E 1x, PCI-E 4x, PCI-E 8x, PCI-E16x, etc. Compatible with Windows 2000/XP/VISTA/7/8/10/OS X/Linux and other systems. Item Type: PCI Express Card Model: STW-3002 Material: PCB Primary Control Chip: For NEC Expansion Port: 2 x USB3.0 and USB3.0 20PIN Port Transfer Rate: 5 Gbps Suitable for Computers: Desktop Computers Applicable System: For Windows 2000/XP/VISTA/7/8/10/OS X/Linux and other systems Applicable Slots: PCI-E 1x, PCI-E 4x, PCI-E 8x, PCI-E16x, etc. Package Includes: 1 x PCI Express Card 1 x Driver CD 1 x Screw Customer satisfaction is our top priority. If you encounter any issues with your product upon receipt, such as damage or incorrect quantity, please contact us immediately. We are committed to providing you with the best customer service.