I'll add to that: I've bought some knock off iPhone cables and a MacBook Pro power supply ($84 times two for a dog chewing through it twice) and they all look similar to the real product except there's a defect
In the iPhone cable it only worked one way -- flipping it over it did not work at all. For the MacBook power supply the MagSafe connector had two slightly indented pins where one had a black circle around it.
I think these were legit Apple parts that failed QA. Who knows.
And I've given up buying them as I don't need the risk. The dog could have essily been electrocuted when chewing through a cheap wire. Also iPhone cables have gotten cheaper.
In the iPhone cable it only worked one way -- flipping it over it did not work at all. For the MacBook power supply the MagSafe connector had two slightly indented pins where one had a black circle around it.
I think these were legit Apple parts that failed QA. Who knows.
And I've given up buying them as I don't need the risk. The dog could have essily been electrocuted when chewing through a cheap wire. Also iPhone cables have gotten cheaper.