Memory

2GB DDR3 1333 LC.DDR0A.002 X X

4GB DDR3 1333 LC.DDR0A.011 X X

2GB DDR3 1066 LC.DDR00.012 X X

1GB DDR3 1066 LC.DDR00.036 X X X X X

4GB DDR3 1333 LC.DDR00.063 X X

2GB DDR3 1066 LC.DDR01.001 X X X X

AC Adapters (One AC adapter comes with each system)

65W

6-Cell, 6000mAH

9-Cell, 9000mAH

6-Cell, 4400mAh LC.BTP0A.016 X

8-Cell, 4800mAh LC.BTP00.006 X

6-Cell, 5600mAH LC.BTP00.090 X

6-Cell, 4400mAh LC.BTP00.123 X X X

6-Cell, 6000mAH

MediaBay (Integrated system slot that accommodates an optional secondary lithium-ion battery)

6-Cell, 3800mAh Secondary Battery LC.BTP00.004 X

External Expansion

External USB 2.0 8X DVD-RW Optical Drive (black) LC.ODD00.013

ProDock LC.DCK0A.005 X X

EasyPort IV

Plugs into system's 68-pin port and has these interfaces: DC-in, VGA, RJ-45, headphones/speaker/line-out, microphone-in, line-in, DVI-D, four USB.

TravelMate