Does anyone have a Surface Dock model 1661 (brick shaped)

According to this page my Surface Dock (model 1661) should have a 12 digit serial number but on looking on the base of the dock, I see a 13 digit serial number along with the device MAC address. Do UK/European Surface Docks have a 13 digit serial number?

If you have a Surface Dock that you purchased in the UK, could you please check whether the serial number is 12 or 13 digits? I purchased mine on Ebay from a private seller who had bought it but had never used it or even taken it out of it's box, and the packaging and dock itself all appear to be genuine so I'm fairly sure it is, but the serial number concerns me.

Has the seller any more of them either in their sold/feedback or available?

In reply to a post by MHC:

Has the seller any more of them either in their sold/feedback or available?

100% feedback and seller was only selling that one Surface Dock and has nothing for sale at the moment, so it seems unlikely it's a fake, but wondering why the serial number is 13 digits rather than 12 digits as per Microsoft's web site..

I have no idea if this will support surface docks but there is a warranty checker that might help here

In reply to a post by ian72:

I have no idea if this will support surface docks but there is a warranty checker that might help here

Thank you very much, that worked and confirmed it as genuine.

That's great, had no idea if it would be any good or not.