Dell OptiPlex 3011 AIO - Back View

5. optical drive (optional)
6. optical-drive eject button
7. hard-drive activity light
8. power button
9. stand
Back View
1. serial port
2. security cable slot
3. back panel connectors
4. memory card reader
5. USB 3.0 connectors (2)
6. microphone connector
7. headphone connector
8. On Screen Display (OSD) buttons (3)
2