I bought the 4-port USB charger to mean by different devices in the holiday load simultaneously. My Kindle does a HTC phone will work, my Android Tab works, only my Galaxy Nexus will launch no charging function with the charger. I have no idea what it is, in any case, the adapter only partially fulfilled the requirements. Interestingly, it works then from time to time but when you first infects the Nexus and afterwards a second device - but also the chance, because regularly. At load time, I can only say that this is in response to the other devices and compared to charging via eg a notebook definitely faster. Due to the incompatibility of Nexus, from me it only 3 points for the product.
