Telco 6 RJ45 (8x8) to 50 Pin Male Adapter. Break out your 50 pin telco terminated cabling by connecting to a harmonica style cluster bar. These units use one male 25 pair telco connector as input and 6, 8 or 12 modular jacks as output. Two holes for screw mounting or 2-sided tape may be used. Connector has Hook and Loop hold-down straps to eliminate screw tightening.