Magnetic Fast Charging Cable USB Adapter Charger Date Cord for iPhone 5/6/7/8

This product can use the both sides when in charging. After connecting with power supply,if indicatior light isBlue,means that item not plugged in well;If displayed in Green, means that item is working properly.

When in transmitting data,if indicatior light displays blue,means that item not working.Then yon only need to rotate the cable 180 degrees.Lights down and displays green, means that item's working