Change USB from 2.0 to 3.0
Is it posible to physically upgrade these ports to 3.0? If possible, how can I make this?
Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor
There is no means to upgrade the built-in USB ports.
An alternative means is getting a Thunderbolt dock unit which has USB 3 ports. Frankly, given the expense of the unit you may want to think about getting a newer model if you really need USB 3 ports.