Lenovo 10138/F0A2 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. USB connector
2. Headphone connector
3. Microphone connector
4. USB connector
Attention: Do not insert 3-inch discs into the optical drive.
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Lenovo C355/C455 All-In-One ComputerHardware Maintenance Manual
5. Memory card reader
6. Power button
7. Optical drive eject button
8. Optical drive