It's compact enough to travel with you wherever you go, fast, and features USB-C for quick data transfers. You can always expand your Mac's storage later with an external drive, and Samsung's T5 SSD is an excellent choice.
Includes one 'Thunderbolt' 2 port, two USB 3.0 ports, 802.11ac Wi-Fi and Bluetooth 4.0. With most Macs, including the entire MacBook lineup, moving to solid state storage in recent years, choosing additional internal storage for your Mac can be an expensive proposition. Released in March 2015, this 13' MacBook Air looks much the same as its predecessors from 20 but it has a faster processor and longer reported battery life. The deal is technically aimed at students, so if you have a college email address, you can look into a further 100 discount by signing up for Best Buys student program. AirPods might be Apple's single best product in the last three years, they pair like magic and even sound pretty good, something you might not expect if you've ever used the wired EarPods. But of all of these accessories, I'd recommend the Apple AirPods first. These are the best Mac accessories to any Apple-made machine, whether you need great storage options, a more customized typing experience, or the massive power provided by an external GPU.
The combination of this box and a compatible AMD GPU (RX 470, 480, 570, or 5800 will be much cheaper, though less powerful, than Blackmagic's solution. You'll need to supply your own AMD graphics card for the box, but the box connects via Thunderbolt 3 for maximum throughput.
If you want a less expensive eGPU solution for your Mac, try Sonnet's eGFX breakaway box.