RJ11 to RJ9 Adapter, Female RJ11 (6P4C) Jack to Male RJ9 (4P4C) Plug
2.5', 8', 12', or 24' RJ9 to RJ45 Cable :: Draper, Inc.
Rj45 to Rj9/Rj10/Rj22 Cable Lengths from 1m to 10m
VoiceJoy RJ9 Headset Adapter Extension Cable- Female 4P4C to Male 4P4C Cable, not RJ11/RJ12, for Plantronics, Jabra, Hot Desking Office Phones: Amazon.co.uk: Electronics & Photo
Sennheiser ADP RJ45-RJ9 Adapter
New 25cm Dual 3.5mm Audio Jack Female To Male Rj9 Rj45 Plug Adapter Convertor Cable For Pc Computer Headset Telephone Devices | Fruugo UK
VoiceJoy RJ9 Headset Adapter Extension Cable- Female 4P4C to Male 4P4C Cable, not RJ11/RJ12, for Plantronics, Jabra, Hot Desking Office Phones: Amazon.co.uk: Electronics & Photo
EPOS Spare RJ45- RJ9 cable DW 80cm
RJ45 - RJ9 - DW
RJ9 RJ10 4P4C 4-PIN M to RJ45 CAT5 ETHERNET 8PIN M PHONE NETWORK HEADSET ADAPTER
COMNEN RJ9 -RJ9/RJ11-RJ45 Telephone Data Cable 4P4C 6P4C 8P4C Male to Male Modular Data Cord Handset Voice Extension Data Cable - AliExpress