What Razer mouse is it?

Is it brand new? If yes, and it’s “registered” (and you personally haven’t done this) - then it might be a fake.

It's a genuine razer product i removed the sticker from the serial number myself i check all other authenticity guides they all match up green usb thing and all the writings plus the box it's a genuine product. 

By the way it's a razer deathadder essential

Could you post a photo of mouse connected to the PC (working) from the bottom? Also you can make a photo of the usb plug of the mouse (and whole cable).

Here you go

It’s 100% fake…

Oh look… is that ”your” serial number, that should be unique?

I don't understand you don't have to talk like that i wanted to know if it was real or not i'll just return it right away if it's not genuine that is literally why i came here to ask around because it's my first product from razer. 

You told it's genuine - and unfortunately it's not.

The best you can do is to return it and get your money back.

I mean i thought so at least thanks for showing me but how do i know if it's genuine i mean it's pretty much a lot like the genuine do i have to just keep buying snd returning ? Lol

Genuine products are Synapse compatible and that's the fastest way to check if it's genuine or not.

Also new genuine Razer product you can register with your RazerID account.

I know that price sometimes is tempting, but getting products from legit source will compensate the hassle with fake products.