EXAM TIP Although you can still buy mSATA cards as we go to print, the technology is definitely on its way out for both laptop and desktop computers, replaced by M.2. The latter standard is half the physical size and offers substantially better performance. The M.2 form factor is incorrectly referred to as M2 (with no dot) in CompTIA A+ 1001 exam objective 3.4. M.2 slots come in a variety, keyed for different sorts of mass storage uses. The keys have a letter associated. M.2 slots that use Key B, Key M, or Keys B+M support mass storage devices, for example, like in Figure 8-7. Other slots
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