Photographer Lee Morris recently purchased a Nikon MB-D11 battery grip from Amazon.com for $216. It worked perfectly fine, but after Morris purchased a second grip for a wedding, he noticed something was different about the first one. After some investigation, he came to realize that he had purchased a Nikon-branded version (i.e. counterfeit) of a grip that ordinarily sells for $40 on Amazon.
Even if you’re buying directly from Amazon.com, verifying that the product is being fulfilled by a reputable dealer can reduce the chances of you unwittingly buying something fake.