Ports Spec: 2 x USB 2.0 - 4 PIN USB Type A
3 x SuperSpeed USB 3.0 - 9 pin USB Type A
1 x network - RJ-45
1 x display / video - DisplayPort output - 20 pin DisplayPort
2 x display / video - HDMI - 19 pin HDMI Type A
1 x headphones - output - mini-phone stereo 3.5 mm
1 x audio - output - mini-phone stereo 3.5 mm
Ports Spec: Convenient eject button for one-step system removal USB Ports:
Port Replicator: 3x USB 2.0, 1x USB 3.0
Mini Dock: 5x USB 2.0, 1x USB 3.0
Mini Dock Plus (90W & 170W): 6x USB 2.0, 1x USB 3.0
Multiple video ports:
Port Replicator: 1x VGA
Mini Dock: 1x VGA, 1x DP
The video controller allows for any two video ports to be used simultaneously.