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This FS-2C-U4-Pro 4-Port PCIE USB 3.0 expansion card comes with 2 dedicated 5Gbps channels, providing total 10Gbps high bandwidth to support multiple USB devices working at full speed simultaneously. Built-in FebSmart self-powered technology offers steady and sufficient power output, effectively avoiding insufficient power and device recognition failure. It expands 4 high-speed USB 3.0 ports for your desktop PC, perfectly solving the problem of insufficient motherboard interfaces. Compatible with all standard PCIe slots, supports Windows and Linux systems with plug and play installation. Well-made internal circuit ensures low heat generation and strong anti-interference ability, ideal for daily office use, peripheral connection and desktop hardware expansion upgrade.