Lenovo IdeaCentre B540 Hardware Maintenance Manual page 29

Rear view
The following illustration shows the location of connectors and components on the rear of the computer.
1. Ethernet port
2. USB connectors
3. HDMI-OUT connector
4. HDMI-IN connector (selected models only)
5. AV-IN connectors (selected models only)
6. TV tuner ports (selected models only)
7. Power connector
8. Air vents (do not block)
.
Chapter 7 Locating connectors, controls and components
23