MX120G Sealed Wire-to-Board Connector System Molex MX120G Sealed Wire-to-Board Connector System is a highly compact and sealed family of interconnects with IP67 ratings. This connector system delivers optimal performance in wet, high vibration, and wide operating temperature conditions. The MX120G sealed connector system uses a positive locking feature coupled with a unique 'twist-lock' terminal feature. This ensures proper alignment and secure retention of both mating connectors. These features make the MX120G connectors very resistant to environments that produce high amounts of vibration preventing accidental disconnection.