HP Deskpro EN User Manual page 11

1.5.2 Rear Panel Connectors – Original Configuration
Voltage Select Switch (115V or 230V to match geographical requirements)


Universal Serial Bus (USB) Connectors

Headphone Connector

Line-Out Audio Connector

Keyboard Connector

Parallel Port Connector

Serial Connectors

Smart Cover Lock

Power Cord Connector
Microphone Connector
Ethernet RJ-45 Connector (some models available without a NIC)
Wide UltraSCSI Connector (select models)
Line-In Audio Connector
Mouse Connector
Monitor Connector
Compaq Deskpro EN Series of Personal Computers 1-11