16 PowerEdge R720 and R720xd Technical Guide
A useful feature included with Dell™ PowerEdge 12
th
 generation servers is the Quick Resource 
Locator (QRL)—a model-specific Quick Response (QR) code that is located on the server (shown in 
Figure 11). Just use your phone to access the Dell QRL application to learn more about the server.  
 
 
This QRL code allows you to: 
  View step-by-step videos, including overviews of system internals and externals, as well as 
detailed, concise, task-oriented videos and installation wizards 
  Locate reference materials, including searchable owner’s manual content, LCD diagnostics, and 
an electrical overview 
  Look up your service tag so you can quickly gain access to your specific hardware configuration 
info and warranty information 
  Contact Dell directly (by link) to get in touch with technical support and sales teams and provide 
feedback to Dell 
These codes provide an easy way to retrieve the critical support information you need when you 
need it, making you more efficient and effective in managing your hardware. 
The latest generation of PowerEdge servers has the features listed in Table 5 to help ensure the 
security of your data center. 
 
A tooled latch is integrated in the top cover to secure it to the rack chassis. 
An optional metal bezel is mounted to the chassis front to provide the Dell ID.  
A lock on the bezel is used to protect un-authorized access to hard drives.  
System status is viewable on the LCD or LED panel when the bezel is installed.