The adapter is a converter to convert the available NVME of a motherboard- into a USB 3.1 header. Brand-new and NVME PCIE to 2-port USB3 10G expansion card Thus the USB 3.1 port of a housing can also be supplied with USB 3.1 without a suitable mainboard. High-performance chip ASM3142,bundling in USB 3.1 with up to 10Gbps Use it to expand your computer storage capacity, your system performance-.