What do these numbers on my Hopper represent?

[120inna55]

The sticker on the back of my Hopper has 3 number series. Besides the one's that are labeled (main board and model number), the one with "CAID RXXXXXXXXXX" I understand is the receiver ID that DISH uses to identify my box. There's an alphanumeric above that: "RRXXXXXXXXXX". What is that number?

 

[n0qcu]

That would be the actual serial number.

 

[Scherrman]

There are usually four sets of numbers or ID that are used with receivers: the model number/name, serial number, smart card number and ID number. The serial starts with the letter R and the smart card starts with the letter S.

 

[patmurphey]

They are secret references for NSA tracking.