I feel like an old man, I am completely confused. My current MBP is 6 years old and I haven't kept up with all the new ports and adapters. What do I need to buy to plug in a regular USB cable to the new MBP I ordered? For example, I want to charge my Jaybird headphons, or just use the iPhone sync cable. Also, and this may be completely stupid, is Thunderbolt 3 the same as USB-C? So I can plug in any USB-C cable/device? Sorry for my confusion, and thanks for your help.