IBM NETVISTA 2251 - Manual (Page 26)

Input/Output connectors
1
1
2
2
1 Mouse connector 8 Microphone connector
2 Keyboard connector 9 Audio in connector
3 USB connector 2 10 Audio out connector
4 USB connector 1 11 Serial connector 2
5 Serial connector 1 12 SVGA Monitor connector
6 Parallel connector 13 DVI Monitor connector
7 Monitor connector
18 Hardware Maintenance Manual