Really nicely on the Thinkpads is a clever little auto-opening port underneath the machine. This means you can use a docking station. 2 seconds and your laptop is a desktop - meaning you can have all your desktop resources and equipment plugged in to the docking station including multiple screens, audio, keyboard and mouse etc.
connections :
3x USB 2.0, one with constant power supply
3x USB 3.0
1x 10/1000 Gigabit Ethernet, with management functions for companies
1x DisplayPort 1.2 (exclusive use with DVI-D)
1x DVI-D (exclusive use with DisplayPort)
1x VGA without driver, perfect graphics quality
1x stereo / microphone combo audio connection eyelet for security lock
(no power supply with this - it works with your original charger)