It has a 5120 x 2160 px screen, Thunderbolt 3, and 98% DCI-P3 support. Basically, it’s a 33% wider 4K screen. It also provides 85W of charging power to MacBook Pros and has two HDMI, and one DisplayPort, though I’m not sure how those can be used effectively.
The Core will fit “virtually every popular desktop graphics card from AMD and Nvidia,” which should encompass most mainstream cards. The enclosure includes a 500W power supply, and Razer says that cards that consume up to 375W of power will fit—this is enough for dual-GPU monsters like Nvidia’s GeForce GTX Titan Z, cards that require that much power are rare.
While not a completely elegant solution, I would love something like this for my 13″ Retina MacBook Pro – an external GPU which has enough horsepower to render Final Cut Pro X projects. This would allow me to have only one Mac at my home office, instead of a desktop and laptop.