So why does this matter when it comes to audio interfaces? In its purest form Thunderbolt can transfer huge amounts of data from your audio interface to your laptop or computer, imagine trying to capture the clearest HD 4K video, that's a lot of data and why shouldn't it be the same for your audio tracks, with Thunderbolt you can quickly and easily record the clearest audio at an extremly high resolution. While the latest Firewire has an impressive bandwidth of 800 Mb/s Thunderbolt 2.0 completely blows it out of the water with an incredible 20 Gb/s. So why Thunderbolt – or more accurately, Thunderbolt 2.0? Well essentially Thunderbolt is a vast improvement on USB and Firewire, it's effectively a hardware interface that combines PCI Express, DisplayPort and DC Power all in one cable.