4 pin HP48 calculator proprietary connector
This is proprietary (non-standard, product specific ) connector. A proprietary connector is the special connector that can only be used with a certain device(s).
- HP48/HP95 calculator pinout
- Mac to HP48 cable pinout
This is the 4 pin HP48 calculator proprietary connector
![4 pin HP48 calculator proprietary connector view and layout](/connectors/hp48_4p.gif)
![4 pin HP48 calculator proprietary photo and diagram](/photos/hp48_4p.jpg)