Lenovo ThinkPad Mini Dock Series 3 - Mini Dock 4337 suitable for L412, L420, L512, L520, T400s, T410, T410i, T410s, T410si, T420, T420s, T510, T510 0i, T5 20 and X220: Amazon.de: Computer & Accessories
IBM LENOVO THINKPAD USB 3.0 X220 X230 X230i DOC3 DOCKING STATION PORT REPLICATOR 4251476995727 | eBay
Lenovo Thinkpad Mini Dock Series 3 Docking Station Port Replicator Lenovo T410, T420, T430, X220 - Smart-Buys e-shop
Lenovo ThinkPad X200 43R8781 UltraBase Docking Station : Amazon.ca: Electronics
Amazon.com: Lenovo (0A33932) Thinkpad X220 Ultrabase Docking Station : Electronics
Lenovo ThinkPad X220 Ultrabase Docking Station Port Replicator 04W6846 0B67692
ThinkPad X220 Tablet" real machine review which can deform and take a good point of notebook PC and tablet - GIGAZINE