RJ standard socket conforming to FCC part 68,mating durability 750cycies; Termination:110/KRONE IDC vertical punchdoen for 22-26AWG sio;odwires,durability 200cycles; IDC contact material:phosphor bronze with tin plating over nickel;Housing material: PC.PPOUL94-V0; Contactmaterial:phosphor bronze with 50u?inch gold plating over nickel; Use:Any unloaded keystone wallplate orpatch panel; Certification:UL listed,TIA/EIA 568A/B, ISO/IEC 11801/YD/T926.3-2001. Technical Specification: Contact resistance:2.5m Insulation resistance:1000m Di-electric strength:DC 1000v(AC 700V)1min, no sparkover and arc Connection durability:morn than 750 times. Keystone jack is 8pin connection.