There is a new solution.
http://www.lexar.com/about/newsroom...industry-s-first-256gb-sdxc-uhs-i-memory-card
It's more expensive than any SSD equivalent. But you get to keep your Applecare warranty.

http://www.lexar.com/about/newsroom...industry-s-first-256gb-sdxc-uhs-i-memory-card
It's more expensive than any SSD equivalent. But you get to keep your Applecare warranty.