It adds an Ultrabay Slim for a secondary hard drive or optical drive, four USB 2.0 ports, DisplayPort, VGA, audio ports, and Gigabit Ethernet, while enabling easy, quick-attach docking.
Lenovo ThinkPad UltraBase Series 3 Dock 0B67692 + DVD‑RW Ultrabay Drive
Lenovo ThinkPad Ultrabase Series 3 For X220
Lenovo ThinkPad Ultrabase Series 3 for X220, X230 inc 65W power supply
Lenovo ThinkPad Ultrabase X6 Docking Station Schwarz 42W4635
Genuine Lenovo ThinkPad P16 Series, P17 Series, T15 Series 230W Laptop Charger
