Mini50 Gen II Unsealed Connection System Molex Mini50 Gen II Unsealed Connection System provides improved reliability with features such as a four-sided cavity for better terminal alignment and increased primary lock retention. Mini50 Gen II Unsealed Connection System also offers a hinged independent secondary lock, reduced misalignment angles, and better scoop-proofing. The series offers optional connector-position assurance that has a larger push area and stronger beam than Gen I connector-position assurance.