USB Cable Supplied for Charging S5

neil154

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Mar 9, 2011
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My wife just upgraded from an S3 to an S5. Verizon told me that my current S3 chargers (auto and AC) will work fine in the S5. I see that the S5 cable and also the charging port has a "second" connection type. What is that additional connection for and if I only want to charge is it okay to my older charging cables which only have a USB type connection?

Thanks for your help.