I only use high grade Cat 6 cable with copper wires. For full performance you should use a cable like this! Hand assembled and tested in England. (all cables tested prior to dispatch).
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Vention Ethernet Cable Cat6 Lan Cable UTP RJ45 Network Patch Cable 10m 15m For PS PC Internet Modem Router Cat 6 Cable Ethernet
Aliexpress UK
RJ11 to BT Plug. Standard Modem Cable.
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5M 10M 15M 20M 30M Cat 6 Ethernet Cable High Speed Internet Network Cable Rj45 Patch Cord for Router Modem Cable Ethernet Cat6
Aliexpress UK
This is the original high quality Cat5e cable with standard color, twisted pair wires. Great Chance to buy this original Cat5e cable at the best price ever! High quality Ethernet Network Cable with two RJ45 Connectors.
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AMPCOM Ethernet Cable, CAT6A Ultra Thin RJ45 Lan Cable UTP RJ 45 Networking Cable Patch Cord for Desktop Computers Modem Router
Aliexpress UK
Versatile Connectivity: Compatible with VDSL2, ADSL2+, ADSL2, and ADSL standards. Also supports fiber/cable access and 3/4G adapters for backup. 1 x RJ11 Modem Leads. Powerful Antennas: Equipped with external 4dBi high-gain antennas for extended wireless coverage.
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Vention Cat8 Ethernet Cable 40Gbps RJ45 Network Cable Cat 8 SFTP RJ45 Patch Cord for PC Modem Router Laptop Cable Ethernet Cat8
Aliexpress UK
High Quality 4 Pin RJ11 US to RJ11 US ADSL Cable. This cable can be used to connect your ADSL Modem (with an RJ11socket) to the Filter/Splitter plugged into your BT ADSL enabled wall socket. Connection: 4 Pin RJ11 to RJ11.
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Cat6 Ethernet Cable Flat Lan Cable UTP RJ45 Internet Network Patch Cord 5m 10m 30m for PS PC Modem Router Ethernet Cable Cat 6
Aliexpress UK
Enhance your internet connectivity with our premium RJ11 to RJ11 ADSL cables. A popular choice as a high speed modem cable for providers such as Sky, BT, TalkTalk, EE and more. This cable can be used to connect your ADSL modem (with an RJ11 socket) to the Filter/Splitter plugged into your BT ADSL enabled wall socket.
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Cat6 Ethernet Cable UTP 1Gpbs Network Internet Cable RJ45 Lan Patch Cord for Modem Laptop Router Cable Ethernet CAT 6
Aliexpress UK
This cable can be used to connect your ADSL Modem (with an RJ11socket) to the Filter/Splitter. plugged into your BT ADSL enabled wall socket. Connection: 4 Pin RJ11 to RJ11. Suite for ADSL connection.
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Vention Cat6 A Ethernet Cable 10Gbps RJ45 Slim Patch Cord Internet Cable for Laptop Modem Router PC PS5 PS4 Xbox Cable Ethernet
Aliexpress UK
Enhance your internet connectivity with our premium RJ11 to RJ11 ADSL cables. A popular choice as a high speed modem cable for providers such as Sky, BT, TalkTalk, EE and more. This cable can be used to connect your ADSL modem (with an RJ11 socket) to the Filter/Splitter plugged into your BT ADSL enabled wall socket.
eBay
Vention Ethernet Cable Cat6 Lan Cable UTP RJ45 Network Patch Cable 10m 50m For PS PC Internet Modem Router Cat 6 Cable Ethernet
Aliexpress UK