Lenovo IdeaCentre A520 Hardware Maintenance Manual page 28

Left and right view
The following illustration shows the location of connectors, controls and components on the left and right
side of the computer.
1. Air vents
2. USB 3.0 connector
3. HDMI-in connector (selected models only)
4. HDMI-out connector
Attention: Do not insert 3-inch discs into the optical drive.
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IdeaCentre A520 All-In-One PCHardware Maintenance Manual
5. Optical drive eject button
6. Optical drive
7. Power button
8. Anti-scratch protector