N4032 switch service tag

I have 4 dell n4032 switches.  They are stacked in a rack and it seems the service tags are on the bottom instead of a pullout tab.  is there another way to get the service tag without taking the switch out of the rack?  I can't slide it out on the rails because the cables are not long enough.  Trying to avoid unplugging all the cables just to get a service tag.