Back view

1. PCIe expansion card slot 1

2. PCIe expansion card slot 2

3. USB 2.0 port

4. PCIe expansion card slot 5

5. System Identification button

6. PCIe expansion card slot 6

7. BOSS-N1 card module

8. Ethernet ports

9. iDRAC dedicated ethernet port

10. USB 3.0 port

11. Optional OCPport.Supports OCP 3.0.

12. VGA port

13. Power supply unit (PSU 1 and PSU 2)