RJ45 ↔ 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
RJ45
Family
Network
Form Factor
Rectangular with tab
Pin Count
8
Reversible
No
Molex 4-pin
Family
Power
Form Factor
Rectangular nylon 4-pin
Pin Count
4
Reversible
No
Notes
RJ45 to Molex 4-pin: Network and power connectors serve different purposes. PoE (Power over Ethernet) delivers power through RJ45, but this is built into the protocol, not a cable adaptation. The RJ45 (Network) and Molex 4-pin (Power) are from different connector families.