Modular Connectors and RJ Connectors from Black Box

Black Panel-Mount Unshielded Coupler RJ11 4-Wire -- FMT1080

 
 
Black Panel-Mount Unshielded Coupler RJ11 4-Wire -- FMT1080 -- View Larger Image
Black Panel-Mount Unshielded Coupler RJ11 4-Wire -- FMT1080-Image

R-45 version also available.