One may think that the MacBook Air is not an excessively powerful computer, but it has a small port on its side that can start to give a game that some were not expecting. We are talking about the Thunderbolt.
In the video that heads this post we have a MacBook Air with various accessories that improve performance (including a Red Rocket Card) connected via Thunderbolt, resulting in video editing in 4K resolution (four times FullHD) at a truly astonishing speed.
And yes, in the video it works with Windows 7 for compatibility issues, but on Mac with the corresponding drivers it must fly in the same way.
Source | 9to5Mac