1)Cat.3 RJ12 Keystone Jack 2)OEM 3)Certificate:UL,CE,ROHS,ISO9001 4)With Dust Cover 1Housing:high temperature thermoplastic.2Contract:phosphor bronze,phosphor bronze with 3 to 50 u"gold plate3Available in Cat 5e or Cat6,T568 A, T568 B wiring.meeting cabling requirement.4Accept 22-26 AWG solid with a insulation diameter of 0.4-0.6mm5Easy to be terminated Low attenuation loss and high