RJ12 is backwards compatible with RJ11. Will fit RJ11 ports and also RJ12 ports. BE AWARE OF FAKE 'CAT6'/'CAT6a' CABLES AVAILABLE ELSEWHERE. They're a gimmick. This high-quality cable is designed to connect your devices with RJ11/RJ12 and RJ45 connectors.
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Ethernet Cable Cat6 Flat Cable Gigabit High Speed 1000Mbps Internet Cable RJ45 Shielded Network LAN
Aliexpress UK
RJ12 is backwards compatible with RJ11. Will fit RJ11 ports and also RJ12 ports. BE AWARE OF FAKE 'CAT6'/'CAT6a' CABLES AVAILABLE ELSEWHERE. They're a gimmick. The cable is shielded with foil and features twisted pairs for maximum signal integrity.
eBay
Ethernet Cable Cat6 Flat Cable Gigabit High Speed 1000Mbps Internet Cable RJ45 Shielded Network LAN
Aliexpress UK
The BT VDSL filtered face plate will take the bigger RJ45 plug. Top Quality Cat6a stranded shielded Copper Network Cable made by Excel. (this is more flexible, I doubt I will be making these with solid cable ever, it will not fit the plugs).
eBay
Ethernet Cable Cat6 Gigabit High Speed 1000Mbps Internet Cable RJ45 Shielded Network LAN Cord for
Aliexpress UK
RJ12 is backwards compatible with RJ11. Will fit RJ11 ports and also RJ12 ports. BE AWARE OF FAKE 'CAT6'/'CAT6a' CABLES AVAILABLE ELSEWHERE. They're a gimmick. This high-quality cable is designed to connect your devices with RJ11/RJ12 and RJ45 connectors.
eBay
Cat6 Ethernet Cable Gigabit High Speed 1000Mbps Internet Cable RJ45 Shielded Network LAN Cord for
Aliexpress UK
Uses a special and expensive extended Shielded RJ12 plugs that fit RJ11 sockets they are backwards compatible. Top Quality Cat6a stranded shielded Copper Network Cable made by Excel or Connetix etc (this is more flexible, I doubt I will be making these with solid cable ever, as it will not fit the plugs).
eBay
Cat6 Ethernet Cable Gigabit High Speed 1000Mbps Internet Cable RJ45 Shielded Network LAN Cord for
Aliexpress UK
The BT VDSL filtered face plate will take the bigger RJ45 plug. These RJ12 plugs fit all RJ11 sockets. Double shielded each pair is shielded and the outer shielded in foil. Uses a special and expensive extended Shielded RJ12 plug these are much stronger/better crimp so stop any chance of cable pull out due to the cable being strained at angles!
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Vention Cat5e Ethernet LAN Cable 1000Mbps RJ45 Shielded Internet Cable 100MHz Network LAN Cord for
Aliexpress UK
Made with Cat6a FFTPtwisted pair cable. Top Quality Cat6a stranded shielded Copper Network Cable made by Excel. I am only making these filtered versions because I get asked for them, personally I would just use any of my cat5e, cat6 or cat6a cables without a filter!
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High Density Shielded Microphone Cable, Microphone Cable, Mixing Console Amplifier Cable, Microphone
Aliexpress UK
Top Quality Cat6a stranded shielded Copper Network Cable made by Excel (this is more flexible, I doubt I will be making these with solid cable ever, as it will not fit the plugs). Uses a special and expensive extended Shielded RJ11 plug these are much stronger/better crimp so stop any chance of cable pull out due to the cable being strained at angles!
eBay
Ethernet Cable Cat6 Lan Shielded Cable UTP Cat 6 Gigabit RJ45 ShieldedSplitter Network Cable Router
Aliexpress UK