HP Black NE4-20001 Elitebook Probook USB 3.0 Port Replicator Docking Station Ports Spec: 1 x Mouse connector 1 x Parallel port 1 x DVI-D 4 x USB 3.0 ports (3 Always-On, 1 powered) 1 x RJ-45 (network) jack 1 x DisplayPort connector 1 x VGA port; 1 Serial port 1 x Keyboard connector 1 x Line-in jack 1 x Headphone jack 1 x Monitor stand port Dimension: 10.24 x 6.44 x 2.60 Weight: 2.36 lbs.