Dell OptiPlex 9010 (Mid 2012) - Manual (Page 3)

15. power supply diagnostic button
Mini–Tower and Desktop — Back Panel View
Figure 3. Back Panel View of Mini-Tower And Desktop
1. mouse connector
2. network link integrity light
3. network connector
4. network activity light
5. USB 2.0 connectors (2)
6. serial connector
7. line-out connector 8. keyboard connector
9. USB 2.0 connectors (2)
10. DisplayPort connectors (2)
11. USB 3.0 connectors (2)
12. VGA connector
13. line-in/microphone connector
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