Why you need this card Add performance USB ports to a desktop PC without replacing the motherboard. Ideal for connecting bandwidth devices or increasing available USB TypeA ports. Improves data transfer reliability and responsiveness for external drives, capture devices, and other USB peripherals. Key features and benefits controller: Uses the ASMedia ASM3142 main control chip to provide stable, speed USB 3.2 transmission and reliable performance under sustained workloads. Broad compatibility: PCIe expansion card designed for standard PCIe x4, x8, or x16 slots so it fits most desktop motherboards. Backward compatible ports: USB 3.2 TypeA ports work with USB 3.0 and USB 2.0 devices for maximum device compatibility. Perport protection: Each USB port includes an independent fuse plus overcurrent and shortcircuit protection to safeguard connected devices and the host system. Systems and driver notes Windows: Supports Windows 7, 10, and 11. For Windows 7, please install the appropriate driver to achieve speed and functionality. Windows 10 and 11 provide more efficient native support. Linux: Supported; check your distribution's kernel/driver support for the ASM3142 when installing. Practical use scenarios External storage and backups: Connect USB 3.x external SSDs or HDDs for faster file transfers and daily backups. Media capture and streaming: Use with USB capture cards, webcams, or audio interfaces that require stable, sustained bandwidth. Peripheral expansion for older systems: Add modern USB connectivity to older desktops that lack fast TypeA ports. What it does for you Expands your desktop's USB capabilities without replacing the system. Ensures safer operation with perport protection to reduce risk to expensive peripherals. Maintains compatibility with a wide range of devices and PCIe slot configurations. Installation pointers Install into a PCIe x4, x8, or x16 slot on the motherboard. For Windows 7, install the provided or downloadable driver to achieve the speed performance. Windows 10, 11, and supported Linux distributions may work without additional drivers depending on the OS version. Specifications included in this product Main control chip: ASMedia ASM3142 Interface: PCI Express (x4/x8/x16 compatible) Ports: USB 3.2 TypeA (backward compatible with USB 3.0 and 2.0) Protection: Independent perport fuse, overcurrent and shortcircuit protection Supported systems: Windows 7/10/11 and Linux