Compaq EXS Series - Manual (Page 11)

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 1-3
1.1.2 Rear Panel Connectors
Ref. Component Ref. Component
1 Mouse Connector 6 Monitor Connector
2 Keyboard Connector 7 Headphone/Line-Out Audio Connector
3 Universal Serial Bus (USB)
Connectors (2) (connects the
computer to any USB peripheral
while the computer is operating; is
a fully functional plug and play
connector) 8 Serial Connector
4 Serial Connector 9 Line-In Audio Connector
5 Parallel Port Connector : Microphone Connector