> M.2 is longer than mSATA There are 42mm long M.2 drives and as all M.2 cards, they are 2mm wide. The largest 2242 SATA drives are 1TB from such reputable bra

> M.2 is longer than mSATA There are 42mm long M.2 drives and as all M.2 cards, they are 2mm wide. The largest 2242 SATA drives are 1TB from such reputable brands as Kingspec and Dogfish and I strongly recommend avoiding them like the plague. I'd stick with the Transcend MTS 430S at 512GB, it's the first SSD in such a size with a DRAM cache, launched last year. (At least the first retail, no idea what goes on with industrial SSDs.) Full height Mini PCIe cards are 30×50.95 mm. You can indeed buy an msata to 2242 adapter and it's cheap as dirt because it is completely passive, just the PCB with the right edge connector with the M.2 key B connector mounted on top. Zero electronics necessary. It's just SATA. For the sake of completeness, I must note some newer 2242 drives are key M / NVMe / PCI Express and I haven't seen such an adapter yet. The Sabrent 2TB Rocket is the largest 2242 SSD I am aware of and it's key M.