It is very difficult to connect an iPhone 5 on this base, the connector is too thick and you have to force a little too much for my taste to put the iPhone in place. Once connected, there are many false contacts that make you lose synchronization or charging time, it is necessary to move the iPhone on its base for reconnecting. I tried to change the USB cable to an Apple Certified, and he has the same faulty contact.
As an inexpensive cable purchased together, this base is gone in the trash after a week of attempts to use. So I preferred a certified Apple base, more expensive but ... that works!