Amphenol MP-5T90MMUNNA-005 Cat3 25-Pair Telco Cable, 90 degree, 50-Pin RJ21, Male, 5', Gray Genuine Amphenol Shielded CAT3 25-Pair Telco Trunk Cable - 90 Male Amphenol 90 Back shell 50-Pin Die-cast Male Telco Connectors (RJ21) 10 MHz rated bandwidth for voice and data applications up to 100 Mbps Compliant to TIA/EIA 568-B Category 3 specifications