Well, bit embarrassed to say now really. It was supposed to be an original N64 controller with a mayflash adapter, but instead it was just a generic USB cheapo version made by 'INNEXT' instead.
I tried it out anyway, if only out of curiosity, but it doesn't work and isn't recognised as an N64 Controller by ANY of my devices, so its being returned tomorrow. Amazon have accepted the return so I'll just chalk it up to my over enthusiastic expectations....
If it seems too good to be true... etc... Yeah, I was duped, but Im not out of pocket and will live to fight another day
