IBM X21 Laptop User Manual


 
4 PC card slot
5 PC Card eject button
6 IrDA port
7 Security keyhole
8 Power jack
9 External-monitor connector
10 Universal serial bus (USB) connector
11 Line-in jack
12 LAN connector
13 Modem connector
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102 ThinkPad X20, X21, X22, X23, X24