I purchased a US AC adapter piece for my Macbook Pro. It's the "duck head" piece that slides off the power adapter to make room for the longer extension cord. If you don't know what I mean, I've included a picture. Anyway, the seller said it's a genuine Apple version, but it's a different manufacturer, so I'm just curious what manufacturer is listed on YOUR duck head. Does anyone have something other than "Volex" on theirs? You have to slide it off and look at the gray part for the manufacturer name. If you don't mind taking a minute to look at it, list the manufacturer here in this thread.