Rear view
1
Smart-card reader (on some models)
2
Always-on USB connector
3
®
Mini DisplayPort
connector
Bottom view
1
External battery pack
2
Docking-station connector (on some models)
3
Speakers
46
Hardware Maintenance Manual
4
Fan louvers
5
USB 3.0 connector
6
Power connector
4
Emergency-reset hole
5
Keyboard drainage holes