Yeah, I know the sticker tells you - but what about scams - could someone create the labels with an existing SN - but put it on a machine that is of lower specs. Like, I just bought an S9j-14T - but it is showing in the System Overview that it is an S9i, not j. But the labels say it is a j. Without a Bitmain SN check that shows the specs associated with the SN - you cannot tell for sure what you have.
Ahh, I only buy new so thats not been an issue. I know there is a way to pull the specs directly from the hardware as it is hard coded into each hashing card, but im not sure how to do it. Ill ask my guy and see if I can get some info for you.