Black Box Telco Cable Cat3 25-Pair Male-Male 50Ft. - ELN25T-0050-MM by Black Box Corporation Save Liquid error (product-badge line 32): -Infinity% $91.49 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart The 25-pair cable is available for PVC (ELN25T) or plenum (ELN25TP) applications. 50-pair cable (EMN50T) is comprised of two ELN25T PVC cables bundled together. Quality UTP copper cable for extending voice connections. Use to expand PBXs in ever-growing office phone systems. Guaranteed for life!