---
product_id: 677978111
title: "3Pcs DC Power 5.5mm x 2.1mm Reverse Polarity Power Converter Cable Cord for Keyboard Guitar Piano Effect Pedals Speaker Radio, Black"
brand: "upperfu"
price: "73 zł"
currency: PLN
in_stock: true
reviews_count: 6
category: "Upper Fu"
url: https://www.desertcart.pl/products/677978111-3pcs-dc-power-5-5mm-x-2-1mm-reverse-polarity
store_origin: PL
region: Poland
---

# 26cm length Reverse polarity 5.5mm x 2.1mm 3Pcs DC Power 5.5mm x 2.1mm Reverse Polarity Power Converter Cable Cord for Keyboard Guitar Piano Effect Pedals Speaker Radio, Black

**Brand:** upperfu
**Price:** 73 zł
**Availability:** ✅ In Stock

## Summary

> 🔄 Power Up Your Sound with Style!

## Quick Answers

- **What is this?** 3Pcs DC Power 5.5mm x 2.1mm Reverse Polarity Power Converter Cable Cord for Keyboard Guitar Piano Effect Pedals Speaker Radio, Black by upperfu
- **How much does it cost?** 73 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/677978111-3pcs-dc-power-5-5mm-x-2-1mm-reverse-polarity)

## Best For

- upperfu enthusiasts

## Why This Product

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

## Key Features

- • **📏 Perfect Length:** 26cm (10.2 inches) for optimal reach and flexibility.
- • **🔄 Polarity Reversal:** Switch between center positive and negative effortlessly.
- • **⚡ Reliable Performance:** Ensures stable power delivery for your devices.
- • **🎸 Essential for Musicians:** Ideal for effect pedals and audio equipment.
- • **🔌 Versatile Compatibility:** Easily connects to keyboards, guitars, and more!

## Overview

The UpperFu 3Pcs DC Power Reverse Polarity Converter Cable is designed for musicians and audio enthusiasts, featuring a 5.5mm x 2.1mm male and female plug configuration. With a total length of 26cm, it allows for easy connection and flexibility, enabling users to reverse polarity as needed for various devices like keyboards and effect pedals.

## Description

Buy 3Pcs DC Power 5.5mm x 2.1mm Reverse Polarity Power Converter Cable Cord for Keyboard Guitar Piano Effect Pedals Speaker Radio UpperFu: Power Supplies - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good - Good
Review: Fair value polarity converter cables that work well - The UpperFu 3Pcs DC Power 5.5mm x 2.1mm Reverse Polarity Cable arrived economically packaged in a zip lock style plastic bag and came in good shape. All three cables worked well despite the lackluster presentation. Nothing fancy but it gets the job done.

## Features

- These cables are reverse polarity cable. One male plug and one female plug.
- Plug Dimension: 5.5mmx 2.1mm . Cord Length: Total 26cm/10.2inch
- Functions: to reverse the center Positive output to center Negative, or reverse the center Negative to center positive.
- Reverse Polarity what you want, fit for keyboard and guitar effect pedal.
- Note: Please make sure your cord end is 5.5mm x 2.1mm compatible.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D4F7ZFY8 |
| Best Sellers Rank | #23,224 in Musical Instruments ( See Top 100 in Musical Instruments ) #232 in Keyboard Power Supplies |
| Brand | UpperFu |
| Built-In Media | DC Power Cable |
| Color | Black |
| Connector Gender | Male-to-Female |
| Customer Reviews | 4.5 4.5 out of 5 stars (13) |
| Indoor Outdoor Usage | Indoor |
| Item Length | 26 Centimeters |
| Item Weight | 36 Grams |
| Manufacturer | Shenzhen Shangfu Electronics Co., Ltd |
| Mfr Part Number | 756557788402 |
| Model Number | DC 5.5mm x 2.1mm |
| Plug Type | 5.5mm x 2.1mm barrel plug |
| Power Cord Prong Count | 1 |
| UPC | 756557788402 |

## Product Details

- **Brand:** UpperFu
- **Color:** Black
- **Connector Gender:** Male-to-Female
- **Item Weight:** 36 Grams
- **Plug Format:** 5.5mm x 2.1mm barrel plug

## Images

![3Pcs DC Power 5.5mm x 2.1mm Reverse Polarity Power Converter Cable Cord for Keyboard Guitar Piano Effect Pedals Speaker Radio, Black - Image 1](https://m.media-amazon.com/images/I/61aGTfaEcvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by E***K on January 30, 2026*

Good

### ⭐⭐⭐⭐ Fair value polarity converter cables that work well
*by P***R on September 24, 2025*

The UpperFu 3Pcs DC Power 5.5mm x 2.1mm Reverse Polarity Cable arrived economically packaged in a zip lock style plastic bag and came in good shape. All three cables worked well despite the lackluster presentation. Nothing fancy but it gets the job done.

### ⭐⭐⭐⭐⭐ Saves having to buy a different power supply
*by A***R on January 27, 2026*

Works great!

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**Shop now:** [https://www.desertcart.pl/products/677978111-3pcs-dc-power-5-5mm-x-2-1mm-reverse-polarity](https://www.desertcart.pl/products/677978111-3pcs-dc-power-5-5mm-x-2-1mm-reverse-polarity)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-14*