Thunderbolt SSD or USB 3 SSD - Need an external SSD drive
i've looked at external SSD's for my mac as well. they seem to be pretty pricey for their purpose. Regards the speed, thunderbolt delivers about 10Gb/s which is plenty. it seems at least as fast as an internal SSD, and a heck a lot faster than USB 3.0. If you have to absolutley get an external SSD, get one that supports thunderbolt, or even better to get one that supports thunderbolt 2.0.