How to Identify between my genuine controllers, and the fake one:
-Hologram sticker. The copies hologram has the word 'Microsoft' once, on an illegible background. The genuine (all 3 of my others) have a repeating hologram of the word 'Microsoft' many times on several lines.
-'Microsoft' engraving on top of controller. The genuine looks good and even, the copy has some letters at different thicknesses.
-Silver panel on user side. The fake is a rough surface, dull grey. The genuines are smooth and shiny. (On my fake, this panel was also slightly misalligned)
-The packaging on the fake looked like this (not my pic:
http://img11.imageshack.us/img11/4329/packagingb.jpg)
Operational differences:
-Buttons. They feel a bit different when pressed, and the fake ones have a springy sound.
-Joysticks. Range of movement seems slightly affected. Require different pressure to press in. (On the fake ,my right joystick also pressed in only rotating, and the left joystick occasionally locked into a slight moved position.)
-Battery pack spot. My authentic recharging pack did not sit properly in the fake controller, it required more force to put in, and sort of got stuck part way.
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Just so you know, and maybe this will help some people. I found the fake to be of slightly poor quality during use as each button/joystick pressed, controlled, and read slightly different than the genuine controllers. I was not as accurate.
