By adding 10Gbps USB-C ports to your computer with the ASMedia ASM3142 chipset you can harness the speed of USB 3.1 Gen 2 - USB 3.1 PCIe expansion card is a necessity for external drives and many other USB 3.1 Gen 2 peripherals - The USB 3.1 adapter PCI-e card includes an optional SATA power connector for high power devices - The card is backward compatible with USB 3.0 (5Gbps) and USB 2.0 (480mbps) devices - The USB 3.1 expansion card is compatible with Windows Linux and macOS operating systems