IBM THINKPAD A20M

Rear view
1 Security keyhole
2 Parallel connector
3 Modem connector
4 Network connector
5 Serial connector
6 External-monitor connector
7 Universal serial bus (USB) connector
8 External-input-device connector
9 Power jack
Locations
ThinkPad A20m/p, A21m/p and A22m/p 113