Razer Hammerhead authenticity

MANY RAZER ARE FAKE i just bought a razer hammerhead pro v2 and some say its fake because of the box design and when i tried to register it , it wouldnt register because the serial number is not working .Once i started searching on Some platforms they said that razer made different boxes within different countries. and i just want to make sure if mine is the original once ,can someone help me with it.