Just got this express card yesterday for my x220, I can't seem to find the drivers for this. Here is the card: https://www.amazon.com/Express-Chipset-Adapter-Converter-5-0Gbps/dp/B00J9PAZIO/ref=sr_1_1?ie=UTF8&qid=1471172235&sr=8-1&keywords=express+card+usb+3.0
I tried to google the information they listed under the selling information for downloading the drivers: " NEC/RENESAS USB3 Controller uPD720202 Drivers ", but that is not for ubuntu. i am on 16.04.. I heard these can be hard to install, can any one help me get these drivers installed and anything else I need to do to get it working?
Also, when I run: lspci -nn Nothing shows up about the card. Any help appreciated!