Working with the notebookA26391-K147-Z120-1-7619 15Left side panel1 2 3 41 = Optical drive2 = Drive indicator3 = Insert/eject button of optical drive4 = Opening for manual ejectionBack panel1 2 3 4 5 61 = Kensington Lock2 = DC jack (DC IN)3 = Monitor port4 = Parallel port5 = LAN connector6 = USB ports