Modular cord coupler:1)6P2C, 6P4C, 6P6C, 8P8C 2) Modular duplex jack: 6P2C, 6P4C, 6P6C, 8P8C Coupler Detailed Selling Lead DescriptionModular cord coupler:1)6P2C, 6P4C, 6P6C, 8P8C 2) Modular duplex jack: 6P2C, 6P4C, 6P6C, 8P8C 3) Modular adapter: 3 ways 6P4C4) Modular surface jack: 6P4C, 6P6C5) Economy type mall jack: 6P2C, 6P4C, 6P6C6) Duplex modular: 6P4C 7) Color: white and ivory coupler