IBM MT 2631, A21M, A22P, A22M, A21P, A20M manual Rear view

Locations

Rear view

Security keyhole

Parallel connector

Modem connector

Network connector

Serial connector

External-monitor connector

Universal serial bus (USB) connector

External-input-device connector

Power jack

ThinkPad A20m/p, A21m/p and A22m/p 113