For a media professional, data transfer is everything. The faster one can move and manipulate media, the more efficient the machine becomes. We take it for granted really but the massive work to perfect everything you watch on TV is incredible? and the ability to move media quickly is central to efficiency. This is where Thunderbolt 3 stands out. TB3 increases data transmission to 40Gbps which is 5GB/s theoretically, but breaks down to a maximum of about 2.8GB/s in reality. Where we use to have simple HD files, they have grown to 4K, 5K and now 8K and media of that resolution simply cannot be run through a USB. The trick?is Thunderbolt 3 and the external devices companies envision to solve this speed and data storage problem. This is where the OWC Mercury helios 3 PCIe Thunderbolt 3 Expansion Chassis comes in.