High Speed RJ11 6P4C Telephone Phone ADSL Modem Line Cord Cable 4 Pin 3m/10ft The RJ-11 cable is used to connect your ADSL modem to your broadband telephone line microfilter. The end connectors are Gold plated for improved data transmission and higher signal strength. Type: 6 position 4 conducter (6p4c) Length: 3 metres.