I ordered this charger cable to lengthen my smartphone. I have a good quality 2.1A charger works fine without the extension, but duand I use my phone while it is seen loader discharge faster but that "it load. After a night connected via the extension, I had less battery than yesterday. To touch this cable is soft, I mean that the sheath is easily crushed under the fingers, indicating the total lack of armor and a diameter of more than doubtful son. I have not done any testing on the data transfer but I did not really hope. Anyway at this price do not expect the high quality.