Add speed USB ports to a desktop PC using this PCIe 3.0 USB expansion card. It delivers stable, driver operation on Windows systems and supports simultaneous connections for multiple devices while maintaining consistent performance. Key benefits Plugandplay on Windows systems: builtin support requires no driver installation, so setup is fast and reliable. transfer speed: four speed USB ports provide up to 5 Gbps per port for fast file transfers and responsive peripherals. Stable power delivery: builtin power connectors supply consistent power to attached devices, reducing dropouts with powerhungry peripherals. Sustained performance: optimized heat dissipation helps prevent throttling during prolonged transfers or heavy use. Compact, universal fit: lowprofile design integrates into most desktop chassis for easy installation and clean cable routing. Scalable and reliable: PCIe 3.0 interface supports additional USB connectivity without compromising system performance. What this card solves Eliminates USB shortages by adding four speed ports to older or crowded desktops. Speeds up backups and large file transfers with a sustained 5 Gbps link. Reduces instability from underpowered USB devices by providing dedicated power connectors. Keeps performance steady under load thanks to improved thermal design. Typical use scenarios Home office: connect an external SSD, webcam, keyboard, and mouse for a tidy, performance workstation. Creative work: move large photo and video files quickly between cameras, card readers, and storage drives. Gaming and peripherals: attach controllers, VR dongles, USB audio interfaces, and external drives while maintaining lowlatency performance. Technical summary Interface: PCIe 3.0 Ports: 4 speed USB ports Transfer rate: up to 5 Gbps Power: builtin power connectors for device stability Compatibility: plugandplay with Windows systems (no driver required) Design: compact form factor with optimized heat dissipation for sustained operation