15ft (4.6m) RJ11 High Speed Internet Modem Cable | Modem, Phone and Ethernet Cables | Data Center | Networking
RJ45 and RJ11 - YouTube
Amazon.com: RJ45 to RJ11 Cable, 6 Feet Phone Jack to Ethernet Adapter RJ11 6P4C Male to RJ45 8P8C Male Connector Plug Cord for Landline Telephone : Electronics
Amazon.com: kenable ADSL Broadband Modem Cable RJ11 to RJ11 Black 1m (~3 feet) : Electronics