Bottom view for X31 series
1
Built-in speaker
2
Battery pack
3
Battery pack latches
4
Docking connector
5
DIMM slots
6
Universal serial bus (USB) connector
7
Stereo headphone jack
8
Stereo line-in jack
9
Microphone jack
10
CompactFlash card slot or Infrared port
11
PC Card slot
12
PC Card eject button
13
IEEE 1394 connector
14
Infrared port
15
LCD latches
2
1
3
15
14
4
11
12
13
ThinkPad X30, X31
Locations
5
8
9
10
6
7
143