Samsung s7 edge SM-G935FD

Hi guys
I bought s7 edge model: SM-G935FD.
Well this is a dual sim phone and I want to know if it's original samsung phone because the authorised dealers in our area only sell single sim variant.
This duos model was something new to me but I purchased it now. Will return from where I bought from if it's a fake.

SO guys waiting for quick replies

from Android Authority Forums http://ift.tt/1r1CunH
via IFTTT