Waterproof M12 Male To Female / Rj45 Male To Rj11 Female All-in-one Connector buy it!
$2.00-$5.00
Cable Rj45 Beige RJ45 To RJ11 Adapter Cable Ethernet RJ45 8P4C Male To Telephone RJ11 6P4C Female Adapter Converter buy it!
$0.48-$1.48
DSL Cable RJ45 to RJ11 Ethernet Modem Data Telephone Cable Network to Telephone buy it!
$1.60
DEM ODM UTP Cable Network Cable RJ45 RJ11 CAT6 6P6C 4P4C To Male 3.5mm Audio Plug Headset Adapter Cable buy it!
$0.45-$0.98
Phone Interface Cable RJ11 To RJ45 Adapter Extension Cable
$0.29-$4.99