Review of Linux Compatibility
The “Unitek 2 Port USB3.0 ExpressCard 24MM” provides two USB 3.0 ports and can be used in Laptops with Express Card slot. The Card uses the uPD720200 chipset as controller:
04:00.0 USB controller [0c03]: NEC Corporation uPD720200 USB 3.0 Host Controller [1033:0194] (rev 04) Kernel driver in use: xhci_hcd Kernel modules: xhci_pci
which is fully supported by the Linux kernel.