Among the many changes that we expect to see in the next generation of iPhones, the new smaller dock connector is one of the most interesting. We know very little about the new connector, except that it will be 9-pin. According to new photos, which supposedly show the sync cable for the iPhone 5, the new connector is very similar.
its dimensions on a standard micro-USB cable.
The guys at Nowhereelse.fr have just posted some new photos comparing the iPhone 5 and micro USB cable connectors. As reported, both connectors are very similar in size.
The images clearly show 8 gold-plated contacts. Where is the ninth mentioned? According to experts, the metal case acts as the ninth contact. For this reason, presumably, the charger will be bipolar. Thus, it can be inserted either side.