5-Port USB 3.1 Gen 2 (10Gbps) PCIe Card — ASMedia 3142 — 1x USB-C, 2x USB-A External + 1x 2-Port IDC Internal (5Gbps Header)

Overview: High-performance 5-port USB PCIe expansion card driven by the ASMedia 3142 controller and upgraded from the popular PEXUSB312EIC model. It delivers USB 3.2/3.1 Gen 2 speeds and supports connected devices at up to 10Gbps. Ports and headers: The card provides a 10Gbps hub with three external ports (2x USB-A and 1x USB-C) plus two internal USB 5Gbps ports exposed via a single 2-port IDC internal header for case/front-panel expansion. Performance features: Supports USB 3.1/3.0/2.0 devices, maintains maximum bandwidth across mixed-speed connections, and includes UASP support to boost performance with external storage such as SSDs, HDDs, and NVMe drives. Optional power: When motherboard power is insufficient, a SATA power connection supplies supplemental power to the USB outputs — offering up to 5V 3A / 15W on the USB Type-C port and up to 5V 0.9A / 4.5W on each USB-A port. Installation and compatibility: Installs in a PCIe 3.0 x4 slot (full-profile bracket pre-installed; a low-profile bracket is included) for desktop or server use. Performance will be lower in PCIe 2.0 slots. Automatic driver installation is supported for Windows, Linux, and macOS (Windows 8 and newer).