Crucial has already managed to stuff its m4 SSD into Ultrabook sizes, but the 7mm thick design may still be too portly for the thinner laptops in the pack. With that in mind, the flash memory guru has just started shipping the m4 mSATA, a barebones card that sits cozily next to the motherboard either as a cache for a rotating disk or as a main drive. It's still as speedy as many of its
