Lenovo C2 Series Hardware Maintenance Manual page 31

The following illustration shows the locations of connectors on the motherboard for models C225 and C325.
1. System fan connector
2. Converter connector
3. Optical disk drive power connector
4. Optical disk drive SATA connector
5. LVDS connector
6. Hard disk drive SATA connector
7. Hard disk drive power connector
8. DC jack connector
9. Function board connector
10. Power board connector
11. I/O board connector
12. Speaker connector
13. USB connector
14. Microphone connector
15. Headphone connector
16. USB connector
17. Card reader connector
18. Camera connector
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Chapter 7 Locations