I’ve has the new 2016 15″ MacBook Pro with Touchbar (they really have to work on their naming) and I have learned a few things. Some delightful, some… not so much. I’d rather not re-hash arguments that have already been made elsewhere ad nauseam, but show you some real-world info.
Lets get one thing out of the way, right off the bat: USB-A, USB-B, and USB-C are connectors. Think of them like shapes. USB 1, USB 2, and USB 3, are bus speeds. To make matters worse, there are three types of USB 3:
USB 1: 12mbps
USB 2: 480 mbps
USB 3.0: 5,000 mbps & HD video
USB 3.1 genUSB- 1: 5,000 mbps & 4k Video
USB 3.1 gen 2: 10,000 mbps & 4k video
As far as ports go, thats where things get confusing:
USB-A supports: USB1, USB2, USB3, 15w power draw
USB-C supports: USB1, USB2, USB3, Thunderbolt3. 100w power draw, reversible plug
So USB-C is a reversible plug and can also be used for charging and Thunderbolt, which means its ALSO backwards-compatible with SATA, FireWire, HDMI, DVI, VGA… basically everything. It is, truly, finally, the one connector to rule them all. But not every device supports all of this. Thats where things get complicated. No longer can you just look at the shape of the jack and know what it is. You have to be intimately aware of the specs of your computer. This could have been a place for Apple to forge ahead and support everything, and make things easier on their users. Unfortunately, that is not the case.