---
product_id: 100209046
title: "Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack)"
brand: "uvital"
price: "KD 4.80"
currency: KWD
in_stock: true
reviews_count: 13
category: "Uvital"
url: https://www.desertcart.com.kw/products/100209046-uvital-rj11-duplex-wall-jack-adapter-dual-phone-line-splitter
store_origin: KW
region: Kuwait
---

# plug & play simplicity 4-conductor stable connection 2-port dual expansion Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack)

**Brand:** uvital
**Price:** KD 4.80
**Availability:** ✅ In Stock

## Summary

> 📞 Double your lines, double your productivity!

## Quick Answers

- **What is this?** Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack) by uvital
- **How much does it cost?** KD 4.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/100209046-uvital-rj11-duplex-wall-jack-adapter-dual-phone-line-splitter)

## Best For

- uvital enthusiasts

## Why This Product

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

## Key Features

- • **No Hassle Setup:** Plug and play design means zero downtime—just connect and go.
- • **Office & Home Ready:** Perfect for multitasking environments demanding dependable phone line expansion.
- • **Double Your Connectivity:** Seamlessly split one RJ11 jack into two for simultaneous device use.
- • **Crystal Clear Calls Every Time:** 4-conductor duplex design guarantees reliable voice clarity without interference.
- • **Universal Device Compatibility:** Effortlessly supports phones, fax machines, answering machines, and caller ID units.

## Overview

The Uvital RJ11 Duplex Wall Jack Adapter is a dual-port splitter that converts a single RJ11 phone jack into two outputs, enabling simultaneous connection of two devices. Featuring a 4-conductor duplex design, it ensures stable and clear voice communication. Compatible with standard phones, fax machines, and caller ID devices, this plug-and-play adapter is ideal for both office and home use. Note: Not compatible with VOIP or internet data transmission.

## Description

Product description The Uvital Duplex Wall Jack Adapter in White is designed for converting one modular jack into two. The four-conductor piece accepts line cords from any two devices such as phones, answering machines, fax machines, caller IDs and more. This duplex adapter can be plugged into any modular jack. Uvital Duplex Wall Jack Adapter 4-conductor duplex in-wall adapter Plugs into any modular jack Converts 1 modular jack into 2 Accepts line cords from any 2 devices For use with phones, answering machines, fax machines, caller ID, etc. Uvital Duplex Wall Jack Adapter, Male to 2 Female Converter RJ11 6P4C Sometimes the jacks are recessed in the case of the VOIP unit. These splitters works great in this situation because it gets the splitter away from the jack a bit with the flexible cable. It can be easily installed on the phone and handset without any tools. Does not affect the sound quality because of the advanced technology and high-quality materials. Great helper to Let your plug 2 phones or devices into a single line Specially designed Duplex Wall Jack Adapter lets you plug in 2 phone devices to 1 wall jack. It allows two telephone with US plug to connect to a single US telephone socket They Can use not only telephone but FAX machine with your Ooma VOIP telephony unit; Package Includes 2 x Duplex Wall Jack Adapter

Review: Dual wall jack - Worked perfect
Review: Perfect - Exactly what we needed for my elderly mom. She needs cordless phones around her home for easy calling, but my brother also wanted a corded phone for reliability. Finding this set was the perfect solution—it made everything so simple and works great for both needs.

## Features

- [Dual-Port Expansion] Converts a single modular phone jack into two outputs, allowing connection of two devices simultaneously
- [Please Note] Designed for splitting standard RJ11 phone lines — not for signal conversion or internet/network transmission. Not compatible with VOIP phones or Cox equipment
- [Stable Connection] 4-conductor duplex in-wall adapter ensures clear, reliable voice and data performance
- [Universal Compatibility] Works with phones, fax machines, answering machines, caller ID,etc
- [Plug and Play] Easily plugs into any standard modular wall jack

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07K4Q14NM |
| Best Sellers Rank | #13 in Telephone Wires |
| Brand | Uvital |
| Built-In Media | Duplex Wall Jack Adapter |
| Color | White |
| Compatible Devices | Telephone |
| Connector Type | RJ11 |
| Customer Reviews | 4.5 out of 5 stars 2,379 Reviews |
| Finish | White |
| Finish Type | White |
| Item Dimensions | 5.91 x 4.13 x 1.18 inches |
| Item Weight | 0.02 Kilograms |
| Item dimensions L x W x H | 5.91 x 4.13 x 1.18 inches |
| Manufacturer | Uvital |
| Mfr Part Number | uv201908211458 |
| Model Number | 8541727342 |
| Number of Items | 2 |
| Number of Ports | 2 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 682604638522 |
| Unit Count | 2 Count |

## Product Details

- **Compatible Devices:** Telephone
- **Connector Type:** RJ11
- **Color:** White
- **Item dimensions L x W x H:** 5.91 x 4.13 x 1.18 inches
- **Brand:** Uvital

## Images

![Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack) - Image 1](https://m.media-amazon.com/images/I/61fvaexXNRL.jpg)
![Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack) - Image 2](https://m.media-amazon.com/images/I/71HQb-bbffL.jpg)
![Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack) - Image 3](https://m.media-amazon.com/images/I/61ZcKPCjr5L.jpg)
![Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack) - Image 4](https://m.media-amazon.com/images/I/61VmsjdTAsL.jpg)
![Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack) - Image 5](https://m.media-amazon.com/images/I/8162jaowwkL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: 0ld wall recepter has four holes for phone line to plug into. can I buy a phone to match?**
A: Any land line phone with a standard line plug or attached line should work just fine.

**Q: what side does the phone line plug in and what side to plug the fax line or does it matter two different numbers**
A: The only one mattering is the one to the phone line.  The others are your choice.

**Q: I have one wall jack, with two lines. Can I use this to have two phones plugged in, and have both phones receive both lines?**
A: no only one phone line can use the jack not two different lines

**Q: will this work to run my wireless printer and my computer?**
A: It works wonderfully with my home phone and printer/fax. Thus far I have not had any complaints.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Dual wall jack
*by A***R on March 24, 2026*

Worked perfect

### ⭐⭐⭐⭐⭐ Perfect
*by A***R on August 31, 2025*

Exactly what we needed for my elderly mom. She needs cordless phones around her home for easy calling, but my brother also wanted a corded phone for reliability. Finding this set was the perfect solution—it made everything so simple and works great for both needs.

### ⭐⭐⭐⭐⭐ Quick shipping / great quality
*by C***Y on December 3, 2025*

Quick shipping. Just what I was looking for. Cannot find these in the store.

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-12*