...

Rear Connectors and Controls

1. Master power switch ‡

2. Power cord connector ‡

3. Serial port (COM1)

4. VGA port

5. 1G LAN RJ-45 Port (LAN1)*

6. 1G LAN RJ-45 Port (LAN2)*

7. LAN RJ-45 Port (IPMI_LAN1)*

8. USB 3.2 Gen2 Ports (USB3_1 and USN3_2)

9. 10G LAN RJ-45 Port (LAN3)*

10. 10G LAN RJ-45 Port (LAN4)*

11. UID Switch
    With the Unique Identification (UID) button, you are able to locate the server you’re working on from behind a rack of servers.
    When the UID button on the front or rear panel is pressed, the front/rear UID blue LED indicator will be turned on.
    Press the UID button again to turn off the indicator.

12. Optional PCIe x4 Gen 2 Host Adapter (not shown)

‡ Power supply unit (PSU) master switch (#1) and power cord connector (#2) positions may be different, depending on the PSU supplier. Fan grid may also look different.

* See LED indication below

...