M.2 (M-key) ↔ Molex 4-pin
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Compatibility check and signal path analysis
Adapter Required
These connectors are not directly compatible. An adapter or converter cable is needed.
Signal Path
M.2 (M-key)
Family
Storage
Form Factor
Card-edge socket
Pin Count
67
Reversible
No
Molex 4-pin
Family
Power
Form Factor
Rectangular nylon 4-pin
Pin Count
4
Reversible
No
Notes
M.2 (M-key) to Molex 4-pin: Storage and power connectors serve different purposes, though some storage connectors (SATA) include power delivery pins. The M.2 (M-key) (Storage) and Molex 4-pin (Power) are from different connector families.