IBM ThinkPad T40 series

Bottom view
1 Hard disk drive
2 Optional DIMM slot
3 Battery pack
4 Battery pack lock
5 Docking connector
6 Battery pack latch
7 Infrared port
8 Built-in stereo speakers
9 LCD latch
3
4
7
9
1
2
5
6
8
Locations
ThinkPad T40, T40p, T41 Series 141