---
product_id: 240241784
title: "RJ45 to RJ11 Converter"
brand: "rfadapter"
price: "¥135"
currency: JPY
in_stock: null
reviews_count: 8
url: https://www.desertcart.jp/products/240241784-rj45-to-rj11-converter
store_origin: JP
region: Japan
---

# Durable Signal RJ45 8P8C RJ11 6P4C RJ45 to RJ11 Converter

**Brand:** rfadapter
**Price:** ¥135
**Availability:** ❌ Out of Stock

## Summary

> 🔗 Connect with Confidence!

## Quick Answers

- **What is this?** RJ45 to RJ11 Converter by rfadapter
- **How much does it cost?** ¥135 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/240241784-rj45-to-rj11-converter)

## Best For

- rfadapter enthusiasts

## Why This Product

- Trusted rfadapter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Value Pack:** Includes 2 adapters for all your connectivity needs.
- • **Versatile Use:** Perfect for phones, faxes, and caller IDs.
- • **Durable Design:** Crafted for optimal signal delivery and sound quality.
- • **Compact & Convenient:** Lightweight and easy to store, ideal for indoor and outdoor use.
- • **Seamless Connectivity:** Easily connect your analog devices to the internet.

## Overview

The RJ45 to RJ11 Converter Adapter is a versatile solution for connecting analog telephone devices to Ethernet jacks. This 2-pack of durable adapters ensures excellent signal delivery and sound quality, making it perfect for both indoor and outdoor use. With its easy-to-use design, you can effortlessly link your phone, fax, or caller ID to the internet.

## Description

Full description not available

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | RFAdapter |
| Connector Type | RJ45 |
| Cable Type | Ethernet |
| Compatible Devices | Telephone |
| Recommended Uses For Product | Connecting analog telephone devices to the internet through Ethernet jacks |
| Color | white |
| Connector Gender | Female-to-Male |
| Shape | Round |
| Number of Pins | 4 |
| Unit Count | 2 Count |
| Connectivity Technology | Ethernet |
| Indoor/Outdoor Usage | Outdoor, Indoor |
| Number of Items | 2 |
| Package Type | Standard Packaging |
| Manufacturer | RFAdapter |
| UPC | 744306795412 |
| Item Weight | 0.634 ounces |
| Package Dimensions | 6.02 x 3.78 x 1.26 inches |
| Item Package Quantity | 2 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** RFAdapter
- **Connector Type:** RJ45
- **Cable Type:** Ethernet
- **Compatible Devices:** Telephone
- **Special Feature:** Tangle Free

## Images

![RJ45 to RJ11 Converter - Image 1](https://m.media-amazon.com/images/I/516rbqTlziL.jpg)
![RJ45 to RJ11 Converter - Image 2](https://m.media-amazon.com/images/I/51wf4cgxCAL.jpg)
![RJ45 to RJ11 Converter - Image 3](https://m.media-amazon.com/images/I/51FjkxhK0gL.jpg)
![RJ45 to RJ11 Converter - Image 4](https://m.media-amazon.com/images/I/51tHxcN6O4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for back-feeding phone lines
*by R***B on June 14, 2022*

My electrician used CAT6 cable for Ethernet and phone wiring. My wiring is for two-line phones, but I only use a single line. I used this RJ45 to RJ11 adapter cable with the Monoprice 1 X 8 Telephone Module, as pictured, to wire my phones. I receive my phone service over a cable modem. I used this adapter cable to back-feed the 1 X 8 module via the RJ11 expansion port from the cable modem. If you follow the RJ45 wiring diagram for the telephone module, everything should work as it should. DO NO BACK-FEED THE BURGLAR ALARM PORT!

### ⭐⭐⭐⭐⭐ right product wrong cable company
*by P***Y on July 19, 2023*

Cable company info bad ordered in error

### ⭐ Junk
*by A***W on February 22, 2025*

Straight up junk doesn't work

## Frequently Bought Together

- RJ45 to RJ11 Converter Adapter, 2 Pack Telephone RJ11 6P4C Female to RJ45 Ethernet 8P8C Male Cable Cord
- Phone Jack to Ethernet Cable Adapter, RJ45 8P8C Female to RJ11 6P4C Male for Landline Telephone Service (2 Pack)

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**Shop now:** [https://www.desertcart.jp/products/240241784-rj45-to-rj11-converter](https://www.desertcart.jp/products/240241784-rj45-to-rj11-converter)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-25*