• RJ11 TO RJ45 ADAPTER FOR ANALOG PHONES – Male-to-female 6P4C-to-8P8C adapter designed for linking analog telephones through Ethernet-style jacks; ideal for setups needing an RJ11 to RJ45 adapter cable in home or office environments.
• CONNECTS TELEPHONE LINES THROUGH ETHERNET WIRING – Routes a phone signal over existing Ethernet cabling without modifying the RJ45 wall socket; a practical RJ45 to RJ11 solution for extending or relocating landline phone connections.
• PURE COPPER WIRING & 50-MICRON GOLD PLATING – Features pure copper conductors that maintain strong phone line continuity, paired with 50-micron gold-plated RJ11/RJ45 contacts that improve connectivity and reduce oxidation compared to standard plated connectors.
• ROHS-COMPLIANT DESIGN – Manufactured with materials that meet RoHS standards for restricted-substance-free construction
• NOT FOR ROUTERS OR BROADBAND DATA – This RJ11 to RJ45 cable does not carry internet or broadband signals. Works only with landline phone service or VoIP if provided through the router’s phone port
• MULTIPLE CABLE LENGTHS AVAILABLE – Select your preferred 3-foot, 6-foot, or custom size from the size variation menu at the top of the listing to fit any room or office setup.
• IDEAL FOR HOME AND OFFICE APPLICATIONS – A versatile RJ11 to RJ45 interconnect solution for telephone extensions, wall jack conversions, and analog phone installations where only RJ45 Ethernet jacks are available.

Product description RJ45 to RJ11 Adapter ( RJ45 Female to RJ11 Male) Premium Features 100% Copper Wire Conductors

We use pure copper, unlike cheap aluminum cables that lose up to a third of the signal. Copper ensures full-strength connections and zero signal loss

More Gold on Contacts

Our 2-line phone splitter features 4× thicker gold-plated contacts for corrosion-resistance. Unlike other manufacturers, we prioritize premium quality

Broad Compatibility

Supports all landline devices: phones, 2-line phones, fax, answering machines, VoIP. Easily split or combine RJ11 phone lines with our line separator

Made in USA

Precision made in New York with high-end materials sourced globally. We make the final product ourselves so every detail meets our exacting standards

PHONE JACK TO ETHERNET ADAPTER RJ11 to RJ45

Converts RJ45 Female Jack into RJ11 Male Plug

* NOTE: The RJ11 to RJ45 Phone Line Adapter cannot be used to carry a broadband signal, it works only with a Telephone Line Service.

If you are not familiar with phone line wiring or unsure how to set it up, please contact the seller for guidance before purchasing this RJ11 to RJ45 adapter to confirm compatibility and avoid installation issues.

Customers who understand RJ11 to RJ45 phone line wiring report excellent results.

The Original Ethernet to Phone Line RJ45 Female to RJ11 Male Adapter

EXPERIENCE SEAMLESS INTEGRATION: Use existing Ethernet wiring for telephone line service with our innovative adapter design

UNPARALLELED DURABILITY: Features thicker gold plating for stronger contact points and superior corrosion resistance

SUPERIOR CRAFTSMANSHIP: High-grade materials and precision construction ensure consistent signal transmission

TRUSTED ORIGINAL DESIGN: Created by RetailAndBulk in 2017 as a simple way to adapt existing Ethernet wiring for telephone line service.

Typical Setup Requires Two Adapters RJ11 to RJ45 Connection Example

RJ11 Male End: Connects to your telephone line wall jack, or VoIP device

RJ45 Female End: Connects to Ethernet cable

RJ45 Female End: Connects to Ethernet cable

RJ11 Male End: Connects to your telephone, fax or other landline device

• I need a bulk order of RJ11 to RJ45 adapters quickly. Should I choose Amazon Prime or Ships from RetailAndBulk?

  Ships from RetailAndBulk is fastest for bulk orders. We ship all RJ11 to RJ45 adapters in one shipment the next business day from our NY workshop where we make them. Prime may need to transfer stock to one warehouse first or send multiple packages.

• Are these RJ11 to RJ45 adapters compatible with all landline phones such as AT&T, Panasonic, and cordless phones?

  You can use any landline or cordless phone just like you would with a regular phone cord. This adapter simply lets you use an Ethernet cable or your home’s Ethernet wall wiring for phone connections - just make sure each end is connected properly.

• Does this Ethernet to phone line adapter provide Internet or data connection?

  No. This adapter does not convert Internet or network signals. It is designed only for analog telephone (voice, fax, dsl, dialup) connections using Ethernet wiring.

• Do I need to rewire anything to use this telephone to Ethernet cable adapter?

  If you’re not sure whether your setup is compatible, please contact the seller for guidance before purchasing this RJ11 to RJ45 adapter to confirm compatibility and avoid installation issues.

• Do you offer bulk discounts on large orders?

  Yes, if you have an Amazon Business account, you will see it when adding large quantity to cart. We’ve served many large-scale projects, including hotels, retail chains, new constructions, schools, hospitals, TV stations, and fire departments.

Our Premium Telephone Accessories Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.6 out of 5 stars 2,512 4.6 out of 5 stars 532 4.6 out of 5 stars 532 4.5 out of 5 stars 103 4.1 out of 5 stars 779 4.0 out of 5 stars 48 5.0 out of 5 stars 1 Price $7.99$7.99 $9.99$9.99 $7.99$7.99 $10.98$10.98 $7.99$7.99 $7.99$7.99 $6.99$6.99 Brand RetailAndBulk RetailAndBulk RetailAndBulk RetailAndBulk RetailAndBulk RetailAndBulk RetailAndBulk Phone Jack RJ11 Male to Female RJ11 Male to Male RJ11 Male to Male RJ11 Male to Female RJ11 Female to RJ45 Male RJ11 Female to Female RJ45 Female to RJ45 Female Conductor Material Pure Copper Pure Copper Pure Copper Pure Copper Pure Copper Pure Copper Shielded CAT6/CAT7 Contacts Gold Gold Gold Gold Gold Gold Gold Made in USA ✔ ✔ ✔ ✔ ✔ ✘ ✘