Happy to have found a charger for my iphone, affordable suite has largely breakage mine prices, I hastened to order 3 chargers of this model. Sad experience alas! Indeed, after plugging it on my MacBook Pro to transfer some pictures, my Mac suddenly cut once. I managed to restart it, but a few minutes later, IDEM. This time, impossible to do anything with my computer. I could deposit the collateral in an Apple harbor, which has a kilometer 50aine home. Back Guarantee: card damaged mother. Why? "The failure comes from a USB device" according to the repairman, while I did not have him talking about this charger. Fortunately that the guarantee could support me, otherwise it would have been a machine from 1000 down to a cursed loader 2