---
product_id: 383187136
title: "Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for Guitar Piano Pedals Keyboard Max. Support 3A 3000mA"
brand: "belker"
price: "€ 24.37"
currency: EUR
in_stock: true
reviews_count: 5
category: "Belker"
url: https://www.desertcart.nl/products/383187136-belker-5-5-x-2-1mm-jack-reverse-polarity-converter
store_origin: NL
region: Netherlands
---

# Supports up to 3A (3000mA) current Reverses polarity for compatibility 5.5 x 2.1mm jack size Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for Guitar Piano Pedals Keyboard Max. Support 3A 3000mA

**Brand:** belker
**Price:** € 24.37
**Availability:** ✅ In Stock

## Summary

> 🔄 Power your sound, your way—no compromises.

## Quick Answers

- **What is this?** Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for Guitar Piano Pedals Keyboard Max. Support 3A 3000mA by belker
- **How much does it cost?** € 24.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/383187136-belker-5-5-x-2-1mm-jack-reverse-polarity-converter)

## Best For

- belker enthusiasts

## Why This Product

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

## Key Features

- • **High Current Support:** Handles up to 3A, perfect for powering demanding guitar pedals, keyboards, and more.
- • **Compact & Lightweight:** Slim 11.7 x 7.7 x 0.9 cm design weighing just 10g—carry it anywhere without bulk.
- • **Universal Compatibility:** Works seamlessly with most 5.5x2.1mm output plugs, including Belker adapters and vintage pedals.
- • **Polarity Reversal Made Easy:** Instantly converts tip polarity to ensure your gear powers up without a hitch.
- • **Essential for Vintage & Modern Gear:** Bridges the gap between old-school electronics and today’s universal adapters—never get stuck powerless.

## Overview

The Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable is a must-have accessory for musicians and tech enthusiasts alike. Designed to reverse the polarity of standard 5.5x2.1mm power plugs, it ensures compatibility between your power adapters and devices with opposite polarity requirements. Supporting up to 3A current, this lightweight and compact cable is perfect for guitar pedals, keyboards, and other small AC electronics, bridging the frustrating gap in power standards and keeping your gear running flawlessly.

## Description

Designed exclusively for Belker Universal Multi-Voltage AC Power Adapter, Also for most adapters with 5.5*2.1mm output plug tip. If your device polarity is contrary to the adapter, please use this cable to convert. Generally applicable to baby monitor, keyboard, speaker, radio, electrical toys, and more small ac electronics with central negative polarity -.

Review: I use this for a vintage DOD chorus pedal. Works perfectly what can I say? Without this I’ve would have been unable to use it.
Review: This reverses the polarity of any 5.5x2.1mm round-tip power cable. It is a necessity if you also purchase the Belker Universal 5V DC Power Cable USB set since that is only tip-positive. Using this adapter cable along with that universal set allows it to work with tip-negative devices. I am grateful that this is available! I'm disgusted by the electronics industry that it's necessary! The industry should abandon all USB-A to Round-Tip power cables. We all have hundreds of USB-A to microUSB or miniUSB cables lying around so that if one cable breaks or gets lost it's no big deal. But since the industry refuses to standardize on anything other than having a USB-A connector on one end of their cables, this Belker Polarity Reversing Cable is great to have on hand!

## Features

- Item Category: Electronic Cable
- Item Trademark: GENERIC
- manufacturer: Belker

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PMHMPMP |
| Item model number | 607595800178 |
| Manufacturer | Belker |
| Package Dimensions | 11.7 x 7.7 x 0.9 cm; 10 g |

## Product Details

- **Brand:** Belker
- **Cable type:** AUX
- **Compatible devices:** Guitar
- **Connector type:** Dc 5.5mm 2.1mm
- **Special features:** Braided

## Images

![Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for Guitar Piano Pedals Keyboard Max. Support 3A 3000mA - Image 1](https://m.media-amazon.com/images/I/4181rPcgQvL.jpg)
![Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for Guitar Piano Pedals Keyboard Max. Support 3A 3000mA - Image 2](https://m.media-amazon.com/images/I/41zCAh83kzL.jpg)
![Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for Guitar Piano Pedals Keyboard Max. Support 3A 3000mA - Image 3](https://m.media-amazon.com/images/I/516sWzWjbgL.jpg)
![Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for Guitar Piano Pedals Keyboard Max. Support 3A 3000mA - Image 4](https://m.media-amazon.com/images/I/518aZfH0+-L.jpg)
![Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for Guitar Piano Pedals Keyboard Max. Support 3A 3000mA - Image 5](https://m.media-amazon.com/images/I/51VkZQbWSgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***E on 15 July 2025*

I use this for a vintage DOD chorus pedal. Works perfectly what can I say? Without this I’ve would have been unable to use it.

### ⭐⭐⭐⭐⭐ Review
*by D***Y on 26 March 2023*

This reverses the polarity of any 5.5x2.1mm round-tip power cable. It is a necessity if you also purchase the Belker Universal 5V DC Power Cable USB set since that is only tip-positive. Using this adapter cable along with that universal set allows it to work with tip-negative devices. I am grateful that this is available! I'm disgusted by the electronics industry that it's necessary! The industry should abandon all USB-A to Round-Tip power cables. We all have hundreds of USB-A to microUSB or miniUSB cables lying around so that if one cable breaks or gets lost it's no big deal. But since the industry refuses to standardize on anything other than having a USB-A connector on one end of their cables, this Belker Polarity Reversing Cable is great to have on hand!

### ⭐⭐⭐⭐⭐ Review
*by S***Y on 16 October 2023*

Belker makes great products and this one is no exception. Great quality, performance, and value for your money. Easy to use; just plug it right in.

## Frequently Bought Together

- Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable Universal AC Power Adapters Max. Support 3A 3000mA
- Belker 12W 3V 4.5V 5V 6V 7.5V 9V 12V Adjustable Voltage Universal AC/DC Adapter Power Supply for Household Electronics,Micro USB - 1A Max. [BN]
- Belker 45W Universal 5V 6V 7.5V 9V 12V 13.5V 15V AC DC Adapter Power Supply for Household Eletronics LCD LED Strip Light Router HUB Speaker Smart Phone Tablet - Support Amps 0.5A 1A 2A 3A 3000mA Max.

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-26*