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Since SSD form factors aren't constrained by disk media diameter, motor height or the need for protective casings, there are few barriers to sizes and shapes that differ from traditional HDDs.
This has led the industry to develop the M.2 SSD form factor configuration, which is essentially a small card with a tiny edge connector. Read this expert guide to get more information on the design, cost, and capacity of the M.2 SSD form factor—which will replace the mSATA form factor.