Rear Panel Components; Serial Number Location - HP ProDesk 400 G4 SFF Hardware Reference Manual

Rear panel components

1 Audio-in jack
2 RJ-45 (network) jack
3 Audio-out jack for powered audio devices
4 DisplayPort monitor connector
NOTE: When a device is plugged into the audio-in jack, a dialog box will open asking if you want to use the connector for a
microphone line-in device or a headphone. You can reconfigure the connector at any time by double-clicking the Audio
Manager icon in the Windows® taskbar.
When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and the
integrated graphics on the system board may be used at the same time. However, for such a configuration, only the display
connected to the discrete graphics card will display POST messages.
The system board graphics can be disabled by changing settings in Computer Setup.

Serial number location

Each computer has a unique serial number and a product ID number that are located on the exterior of the
computer. Keep these numbers available for use when contacting support for assistance.
5 VGA monitor connector
6 USB 2.0 ports (2)
7 USB 3.x ports (4)
8 Power cord connector
Rear panel components 3