Dell PowerVault NX3100 Hardware Owner's Manual page 14

Item Indicator, Button,
or Connector
6 System identification
panel
7 USB connector
8 Video connector
14
About Your System
Icon Description
A slide-out panel for system information
including the Express Service tag,
embedded NIC MAC address, and
iDRAC6 Enterprise card MAC address.
Connect USB devices to the system.
The ports are USB 2.0-compliant.
Connects a monitor to the system.