I bought the plug because it is smaller than the Inatek dual port charger. Unfortunately, he does not work on a port (2.4A) with my Galaxy S3 Mini. Did it with three different cable tries: "AmazonBasics USB 2.0 Cable A Male to Micro B plug" "BIGtec USB 2.0 micro cable white 1.80m USB micro-B cable A male to micro B" "Anker® 1.8m Extra Long Premium Micro USB to USB Cable High Speed USB 2.0 A male to Micro B" The plug hums when no cable is connected, but is not a big problem, because you can leave the cable so tuned.