M.2 (M-key) ↔ M.2 (B-key)
Compatibility check and signal path analysis
Adapter Required
These connectors are not directly compatible. An adapter or converter cable is needed.
Recommended: M.2 (M-key) to M.2 (B-key) adapter
Signal Path
M.2 (M-key)
Family
Storage
Form Factor
Card-edge socket
Pin Count
67
Reversible
No
M.2 (B-key)
Family
Storage
Form Factor
Card-edge socket
Pin Count
67
Reversible
No
Notes
M.2 (M-key) to M.2 (B-key): Both are storage connectors but may use different interfaces. An adapter or enclosure may bridge them, but speed will be limited by the slower interface. The M.2 (M-key) (Storage) and M.2 (B-key) (Storage) share the same connector family.