Differences Between M.2 Cards: M.2 Slots, Keys, Sizes and Types

Scope and location

Nominal module-format examples 2242 and 2280; not connector mating dimensions.

Article 000144170, version 12; last modified 30 September 2026. M.2 Cards section, Figure 1 examples (b), (c) and (d).

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2026-10-08

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Recorded AI-assisted source inspection; not independent human approval or hardware testing.

The general key/capability table is not adopted as a universal host rule. No Dell artwork, measured geometry, tolerance, contact assignment or exact-host approval is supplied.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.