Laptop connects with docking station
Reset ("cold restart") button in a hole (needed a thin metal tool to press)
Instant power off button in a hole (needed a thin metal tool to press)
Integrated charger or power adapter inside the laptop
Dedicated Media buttons (Internet, Volume, Play, Pause, Next, Previous)
Floppy disk drive
Serial port
Parallel port
Modem
IEEE 1394 port
Docking port
Shared PS/2 input device port
IrDA
S-video port
S/PDIF audio port
PC Card / PCMCIA slot
ExpressCard slot
CD/DVD Drives (starting with 2013 models)
VGA port (starting with 2013 models)