---
product_id: 117265929
title: "Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable Universal AC Power Adapters Max. Support 3A 3000mA"
brand: "belker"
price: "€ 12.52"
currency: EUR
in_stock: true
reviews_count: 8
category: "Belker"
url: https://www.desertcart.es/products/117265929-belker-5-5-x-2-1mm-jack-reverse-polarity-converter
store_origin: ES
region: Spain
---

# Supports up to 3A current Reverse polarity tech Universal 5.5x2.1mm plug Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable Universal AC Power Adapters Max. Support 3A 3000mA

**Brand:** belker
**Price:** € 12.52
**Availability:** ✅ In Stock

## Summary

> 🔄 Power polarity reversed, compatibility restored!

## Quick Answers

- **What is this?** Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable Universal AC Power Adapters Max. Support 3A 3000mA by belker
- **How much does it cost?** € 12.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/117265929-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

- • **Amp Up Without Fear ⚡:** Handles a robust 3A max current, ensuring stable and safe power delivery.
- • **Flip Your Power Game 🔄:** Seamlessly reverse polarity to make incompatible devices work effortlessly.
- • **Compact & Durable Design 🖤:** 12cm sleek cable length with Belker’s trusted build quality for long-lasting use.
- • **Plug & Play Universal Fit 🔌:** Designed for all 5.5x2.1mm DC plugs, perfect for your diverse electronics arsenal.
- • **Essential for Vintage & Modern Gear 🎸:** Ideal for everything from baby monitors to vintage pedals—never let polarity hold you back.

## Overview

The Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable is a compact, durable solution designed to flip the polarity of your AC power adapters. Supporting up to 3A current, it ensures safe and reliable power for a wide range of small electronics including monitors, speakers, and vintage pedals. Compatible with all 5.5x2.1mm plugs, this cable is a must-have for professionals and enthusiasts needing seamless device compatibility.

## 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: Great solution for odd pedals - 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 is great but it's unfortunate that we need it! - 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

- This is a reverse polarity cable.
- 5.5mm x 2.1mm male plug and female plug, 12cm cord length.
- Use to reverse the center Positive output to center Negative or reverse the center Negative to center positive.
- Made by Belker, quality and durable. Max. support 3A Amp current.
- Applicable only to power adapters with 5.5*2.1mm plug end.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PMHMPMP |
| Brand | Belker |
| Brand Name | Belker |
| Cable Type | reverse polarity cable |
| Color | Black |
| Compatible Devices | Monitor, Speaker |
| Connector Type | Dc 5.5mm 2.1mm |
| Customer Reviews | 4.6 out of 5 stars 232 Reviews |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Item Shape | Round |
| Manufacturer | Belker |
| Maximum Current | 3 Amps |
| Model | 607595800178 |
| Number of Items | 1 |
| Number of Pins | 2 |
| Other Special Features of the Product | Reverse Polarity |
| Recommended Uses For Product | Reversing polarity for small AC electronics, including baby monitors, keyboards, speakers, radios, and electrical toys Recommended Uses For Product Reversing polarity for small AC electronics, including baby monitors, keyboards, speakers, radios, and electrical toys See more |
| Special Feature | Reverse Polarity |
| Specification Met | UL |
| UPC | 607595800178 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Belker
- **Cable Type:** reverse polarity cable
- **Compatible Devices:** Monitor, Speaker
- **Connector Type:** Dc 5.5mm 2.1mm
- **Special Feature:** Reverse Polarity

## Images

![Belker 5.5 x 2.1mm Jack Reverse Polarity Converter Cable Universal AC Power Adapters 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 Universal AC Power Adapters 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 Universal AC Power Adapters 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 Universal AC Power Adapters 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 Universal AC Power Adapters Max. Support 3A 3000mA - Image 5](https://m.media-amazon.com/images/I/51VkZQbWSgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great solution for odd pedals
*by T***E on July 15, 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.

### ⭐⭐⭐⭐⭐ This is great but it's unfortunate that we need it!
*by D***Y on March 26, 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!

### ⭐⭐⭐⭐⭐ A Belker quality product!
*by S***Y on October 16, 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
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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-22*