X230] Dat express card, ALL the USB3 ports : r/thinkpad
ThinkPad X220: ExpressCard 3x USB 3 - YouTube
StarTech ECUSB3S254F 2 Port Flush Mount ExpressCard 54mm SuperSpeed USB 3.0 Card Adapter - Newegg.com
Amazon.com: StarTech.com 1 Port Flush Mount ExpressCard SuperSpeed USB 3.0 Card Adapter with UASP Support - ExpressCard USB 3.0 Adapter (ECUSB3S11), Green : Electronics