---
product_id: 191145891
title: "Reverse Polarity Converter Cable"
brand: "mr.power"
price: "4.54 OMR"
currency: OMR
in_stock: null
reviews_count: 8
category: "Mr.Power"
url: https://www.desertcart.com.om/products/191145891-reverse-polarity-converter-cable
store_origin: OM
region: Oman
---

# Reverse polarity conversion Fits keyboards & guitar pedals 5.5x2.1mm jack size Reverse Polarity Converter Cable

**Brand:** mr.power
**Price:** 4.54 OMR
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power your gear your way — no more polarity puzzles!

## Quick Answers

- **What is this?** Reverse Polarity Converter Cable by mr.power
- **How much does it cost?** 4.54 OMR with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/191145891-reverse-polarity-converter-cable)

## Best For

- mr.power enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Coaxial cable with sturdy plastic outer material built for indoor use and long-lasting performance.
- • **Dual Pack Value:** Includes 2 cables, perfect for multi-pedal setups or backup power solutions.
- • **Compact & Convenient:** 173mm length ensures minimal cable clutter while maintaining reliable connections.
- • **Cost-Saving Solution:** Avoid overpriced proprietary cords by effortlessly reversing polarity with this affordable converter.
- • **Universal Compatibility:** Seamlessly adapts standard power supplies to nonstandard polarity devices like keyboards and guitar pedals.

## Overview

The Mr.Power Reverse Polarity Converter Cable (5.5 x 2.1mm) is a 2-piece set designed to convert power polarity for keyboards and guitar effect pedals. With a compact 173mm length and durable coaxial construction, it enables standard power supplies to work with devices requiring reverse polarity, saving users from costly proprietary cables.

## Description

desertcart.com: Mr.Power Reverse Polarity Converter Cable 5.5 X 2.1 for Keyboard Guitar Effect Pedal (2 pcs) : Musical Instruments

Review: Use a standard power supply with nonstandard electronics - Needed this for a Casio keyboard, bought in a thrift shop with no power cord. I have lots of 'em with the right voltage, but Casio uses a nonstandard polarity (presumably to make us buy their proprietary power cord). This adapter changed my standard polarity cord to fit their keyboard. Worked great and saved me $20!
Review: Works to reverse polarity on cameras - Worked great with Panasonic convertible cameras

## Features

- One male plug and one female plug
- Reverse Polarity what you want, fit for keyboard and guitar effect pedal
- Jack Size: 5.5mmx2.1mm
- Length: 173mm
- 2pc Effect Pedal Cable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YJKJY7C |
| Best Sellers Rank | #3,895 in Musical Instruments ( See Top 100 in Musical Instruments ) #142 in Instrument Cables |
| Brand | Mr.Power |
| Brand Name | Mr.Power |
| Cable Type | Coaxial |
| Color | Black |
| Compatible Devices | PC |
| Connector Gender | Male-to-Female |
| Connector Type | Male-to-female |
| Customer Package Type | sealed anti-static bag |
| Customer Reviews | 4.7 out of 5 stars 370 Reviews |
| Indoor Outdoor Usage | Indoor |
| Item Shape | Round |
| Manufacturer | Mr.Power |
| Model | MP-RPC-5521-2 |
| Number of Items | 2 |
| Number of Pins | 2 |
| Other Special Features of the Product | Low Voltage |
| Outer Material | Plastic |
| Recommended Uses For Product | Connecting guitar effect pedals to amplifiers or keyboards to power supplies |
| Special Feature | Low Voltage |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Mr.Power
- **Connector Type:** Male-to-female
- **Cable Type:** Coaxial
- **Compatible Devices:** PC
- **Special Feature:** Low Voltage

## Images

![Reverse Polarity Converter Cable - Image 1](https://m.media-amazon.com/images/I/41Ke6H0swzS.jpg)

## Available Options

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

## Questions & Answers

**Q: Does it work with 9 volts**
A: I use it for 9 volts. Works great!

**Q: Is this cable also the right size for 12Volt battery pack?**
A: The plug size is 5.5 x 2.1mm. 
If your device has the same plug size, it can fit for.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Use a standard power supply with nonstandard electronics
*by K***Z on February 4, 2026*

Needed this for a Casio keyboard, bought in a thrift shop with no power cord. I have lots of 'em with the right voltage, but Casio uses a nonstandard polarity (presumably to make us buy their proprietary power cord). This adapter changed my standard polarity cord to fit their keyboard. Worked great and saved me $20!

### ⭐⭐⭐⭐⭐ Works to reverse polarity on cameras
*by C***S on November 2, 2025*

Worked great with Panasonic convertible cameras

### ⭐⭐⭐⭐⭐ Simple fix to adapt 9V guitar pedal power supply for use with positive center pin device
*by S***V on November 25, 2025*

Used this to adapt a standard guitar pedal power supply to work with a KAT drum pad that has a positive center pin connection. Simple and inexpensive fix to replace old PS that died. Easier and cleaner than rewiring the pedal supply connector.

## Frequently Bought Together

- Mr.Power Reverse Polarity Converter Cable 5.5 X 2.1 for Keyboard Guitar Effect Pedal (2 pcs)
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**Shop now:** [https://www.desertcart.com.om/products/191145891-reverse-polarity-converter-cable](https://www.desertcart.com.om/products/191145891-reverse-polarity-converter-cable)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-02*