Hey guys, I have a 1TB TOSHIBA USB 2 & 3 external HDD and a Late 2013 Retina Macbook Pro 15". When I connect the HDD on the left side of my MacBook Pro a blue LED lights on - which indicates that it's connected via USB3 - on the HDD case, but when I connect it on the right side, a white LED lights on - which indicates that it's connected via USB2. This computer is not even a week old (bought it brand new from an Apple Store in Italy). Does the Retina Macbook Pro have only one USB3 port or my port on the right sight is not working correctly ? Mind you, this Toshiba HDD is the only USB 3 accessory I have in my house so I can't connect something else for more testing. Thank you !