Bought this cable to charge multiple USB devices from a MacBook Pro. He worked well for eight months. Then I noticed that my cell phone battery was not charging anymore. I thought it might just be a bug, but the next device I charged this cable with (a Bose headset) actually started smoking when I plugged this cable in. This may be coincidence, but I assume that the cable destroyed both cables. Devices. I don't want to risk more, so I threw the cable away.