---
product_id: 49244974
title: "BK4509 RJ11 UK Plug to RJ45 Socket Line Telephone Adaptor - White"
brand: "phonapart"
price: "1860929₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Phonapart"
url: https://www.desertcart.vn/products/49244974-bk4509-rj11-uk-plug-to-rj45-socket-line-telephone-adaptor
store_origin: VN
region: Vietnam
---

# Maintains full data speed Supports Cat 5e Ethernet cable RJ11 to RJ45 seamless plug BK4509 RJ11 UK Plug to RJ45 Socket Line Telephone Adaptor - White

**Brand:** phonapart
**Price:** 1860929₫
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect smarter, not harder — streamline your space with Phonapart!

## Quick Answers

- **What is this?** BK4509 RJ11 UK Plug to RJ45 Socket Line Telephone Adaptor - White by phonapart
- **How much does it cost?** 1860929₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/49244974-bk4509-rj11-uk-plug-to-rj45-socket-line-telephone-adaptor)

## Best For

- phonapart enthusiasts

## Why This Product

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

## Key Features

- • **Clutter-Free Setup:** Eliminate extra switches and messy cables by consolidating your phone and broadband connections.
- • **Compact & Lightweight:** Sleek white design weighing just 9g fits discreetly in any professional or home office setup.
- • **Effortless Connectivity:** Easily convert RJ11 phone plugs to RJ45 sockets without losing speed or signal quality.
- • **Universal Compatibility:** Works flawlessly with standard telephone devices and Cat 5e Ethernet cables for versatile use.
- • **Reliable & RoHS Compliant:** Built to last with eco-friendly materials, ensuring safe and sustainable connectivity.

## Overview

The BK4509 RJ11 UK Plug to RJ45 Socket Line Telephone Adaptor by Phonapart is a compact, reliable solution designed to convert RJ11 phone plugs to RJ45 sockets. Compatible with Cat 5e Ethernet cables and standard telephone devices, it maintains full data speeds while reducing cable clutter. Lightweight and RoHS compliant, this adaptor is perfect for professionals seeking efficient, clean connectivity in home or office environments.

## Description

Phonapart ocket Line Telephone Adaptor. Feature: RJ11 Plug to RJ45 ocket Line Adaptor.

Review: Worked as described - My Phone/Broadband socket and hub was one side of the room and all the av equipment was the other side of the room linked by a 10m RJ45 Ethernet cable. I ordered 2 of the connectors for either end of the Ethernet cable so I could move the router. There were no problems with the adaptors and all the equipment is now in the same cabinet with no change to data speeds, I could also get rid of the Ethernet switch I was using so less clutter. Well worth the outlay
Review: Great support through thick and thin thanks Fuzion - I ordered these so I could use a spare ethernet cable for my Internet connection after my original RJ11 connection malfunctioned due to the wear and tear of twenty years. These connections worked perfectly when I finally connected them to the right cable. Fuzion product support were very halpful they did what they could and I was very abrasive but the problems I experienced were primarily of my own making I feel that I apologise to the support staff of Fuzion for my continued negativity....

## Features

- RJ11 Plug to RJ45 ocket Line Adaptor.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MRT9DBR |
| Best Sellers Rank | 97,895 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 718 in Phone Cables |
| Brand | Phonapart |
| Cable Type | Ethernet |
| Colour | White |
| Compatible Devices | Telephone |
| Compatible Phone Models | RM |
| Connector Gender | Male-to-Female |
| Connector Type | RJ11, RJ45 |
| Customer Reviews | 4.1 4.1 out of 5 stars (231) |
| Ethernet Cable Category | Cat 5e |
| Indoor Outdoor Usage | Indoor |
| Item Shape | Round |
| Item Weight | 9 g |
| Manufacturer | Phonapart |
| Model Number | BK4509_SML |
| Number of Items | 1 |
| Number of Pins | 12 |
| Recommended Uses For Product | Connecting Telephones to Networks or Devices with RJ45 Ports |
| Specification Met | RoHS |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Phonapart
- **Cable type:** Ethernet
- **Compatible devices:** Telephone
- **Compatible phone models:** RM
- **Connector type:** RJ11, RJ45

## Images

![BK4509 RJ11 UK Plug to RJ45 Socket Line Telephone Adaptor - White - Image 1](https://m.media-amazon.com/images/I/31OwFlD2MUL.jpg)

## Questions & Answers

**Q: Is it Male rj11 and female rj45? cant tell from the picture ?**
A: The cable is a male rj11 to male rj45. The rj45 end plugs into a female to female rj45 adapter.

**Q: I purchased this to connect my rj11 bt outlet to router's 8p rj45 internet port. the rj45 adaptor i received has 4p, not the 8 shown? is this normal?**
A: As far as I can say (and this is based on the ones I purchased) the adaptor has one socket connected to the short cable terminated with the RJ11 plug and the second socket which takes the RJ45 plug/ethernet cable to the router/firewall etc. I have just used two of these back to back to use an existing ethernet run to link from the master socket to the vdsl modem which is next to the firewall. I do have a number of other RJ45 to RJ45 joiners and these all have 8 pins in them as they are connecting two Cat6 cables.

**Q: Can i use this to add a phone to a room that only has Rj45 can i make external calls ?**
A: I don't think that this will help you to do this.  Unless the phone is a networked (VoIP type) phone, when you would still need a VoIP server of some sort.

**Q: Can you use a pair of these on the dsl output of a bt microfilter to extend via ethernet cable? it's not working here.**
A: I would expect that this would work from the microfilter output, however I don't have external microfilters (it's built in to the master plug) so I don't have experience of this.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked as described
*by S***O on 16 November 2020*

My Phone/Broadband socket and hub was one side of the room and all the av equipment was the other side of the room linked by a 10m RJ45 Ethernet cable. I ordered 2 of the connectors for either end of the Ethernet cable so I could move the router. There were no problems with the adaptors and all the equipment is now in the same cabinet with no change to data speeds, I could also get rid of the Ethernet switch I was using so less clutter. Well worth the outlay

### ⭐⭐⭐⭐⭐ Great support through thick and thin thanks Fuzion
*by G***E on 24 August 2018*

I ordered these so I could use a spare ethernet cable for my Internet connection after my original RJ11 connection malfunctioned due to the wear and tear of twenty years. These connections worked perfectly when I finally connected them to the right cable. Fuzion product support were very halpful they did what they could and I was very abrasive but the problems I experienced were primarily of my own making I feel that I apologise to the support staff of Fuzion for my continued negativity....

### ⭐⭐⭐⭐ Essential part to plug my landline phone into broadband router
*by D***S on 28 September 2024*

Had to order this to be able to plug my landline phone into broadband router following upgrade to full fibre system, as Vodafone did not supply it to me when installing the new line - though they did reimburse me for the cost subsequently.

## Frequently Bought Together

- Phonapart BK4509 RJ11 UK Plug to RJ45 Socket Line Telephone Adaptor - White
- rhinocables RJ11 to RJ45 Cable - Ethernet Patch Network Lead | Reliable Router & Modem Connectivity | ADSL, VoIP, Fax & Phone Compatible | Multiple Lengths & Colours Available (1m,Black)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-24*