Dell Precision 5820 Tower D02T

Back view
1. PSU BIST LED 2. Power cable connector
3. Microphone /Line-in port 4. Line-out port
5. Serial port 6. PS/2 Mouse port
7. PS/2 Keyboard port 8. Network port
9. USB 3.1 Gen1 ports 10. USB 3.1 Gen1 port(supports smart Power-On)
11. PCIe expansion slot
8 Chassis