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Amphenol 25-Pair Telco Cables -- Amphenol telco trunk cables couple genuine Amphenol die-cast 50-pin telco connectors with Category 3 (CAT3) 25-pair cable for reliable performance to 100 Megabits per second. The RJ-21 50-pin telco connector, also known as an Amphenol Connector, was invented by our company over 50 years ago and is still prevalent today in intra-building voice and data systems.
