RJ11 Female to RJ11 Female Inline Coupler Adapter - 6P4C - Straight Pinout

This item is subject to a 15% tariff surcharge
6P4C | Gold-Plated Contacts | Plastic | Straight Pinout | Extend Existing Cable
100% of 100
Quantity Discount Pricing
1-4 5-9 10-49 50-99 100+
$0.70 $0.54 $0.50 $0.45 $0.43

This inline RJ11 to RJ11 coupler will allow the connection of two RJ11 cables to extend an existing cable. 50 micron gold plated contacts ensure excellent connectivity.


  • RJ11 female to female
  • 6 Position, 4 Conductor
  • Gold plated contacts
  • Color: White
  • Wired Straight
  • L 1 1/2 W 5/8 H 7/8
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Tariff Percentage 15%
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Proposition 65

WARNING: This product can expose you to chemicals including phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov


Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment in the European Union.  It stands for Restriction of Hazardous Substances Directive.

REACH, a European Union regulation addresses the production and use of chemical substances and their potential impacts on both human health and the environment.  It stands for Registration, Evaluation, Authorisation, and Restriction of chemicals.


The WEEE Directive set collection, recycling and recovery targets for all types of electrical goods in the European community.  It stands for Wate Electrical and Electronic Equipment Directive.

* The following information is for information purposes only.  It does not guarantee that the product adheres to the following standards.  Please check the product description for specific certifications.

Q: What is the difference between an RJ11 and an RJ12 connector?

A: Both connectors are the same size and appear the same. However looking at the contacts an RJ11 will only have 4 contacts. An RJ12 will have 6 contacts.

Q: What are the terms 4P4C 6P4C and 6P6C referring to?


4P4C: 4 Position 4 Conductor ( RJ22) - used for Telephone Handset cables.

6P4C: 6 Position 4 Conductor (RJ11) - used for ADSL telephone and modem cables.

6P6C: 6 Position 6 Conductor (RJ12) - used in System phones.

Q: Which adapter or splitter should I use. Reverse or straight?

A: Newer phones can use a straight or reverse pinned line cord. If you’re unsure of the age of your phone a reverse pinned cord will work with any age phone