M.2 SSDs slide into a keyed M.2 slot on the motherboard. The edge connector supplies both data pathways (PCIe or SATA) and the 3.3-V power they need, so no separate SATA power or data cables are required. Because they are solid-state, they have no rotational speed (RPM), and they are not optical drives.
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CompTIA A+ 220-1101 (V14)
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