Does it work with 9 volts

I use it for 9 volts. Works great!

Is this cable also the right size for 12Volt battery pack?

The plug size is 5.5 x 2.1mm. If your device has the same plug size, it can fit for.

Reverse Polarity Converter Cable

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Description

⚡ Power your pedals right—flip the polarity, not your vibe!

DURABLE SLEEK - Black coaxial cable with plastic outer shell built to last in any indoor jam session or studio grind.
DUAL PLUG DESIGN - One male and one female plug ensures easy, secure connections every time.
COMPACT 173 MM LENGTH - Ideal cable length for tidy pedalboards and desktop setups without clutter.
PRO GRADE COMPATIBILITY - Engineered for keyboards and guitar effect pedals—never worry about power mismatches again.
UNIVERSAL POLARITY SWITCH - Seamlessly flip center positive to negative or vice versa for perfect pedal power.

The Reverse Polarity Converter Cable by Mr.Power is a 173mm coaxial cable featuring a 5.5mm x 2.1mm male-to-female jack designed to reverse center polarity for guitar effect pedals and keyboards. Rated for up to 2A, it ensures compatibility with various power supplies, preventing damage and optimizing performance. Perfect for musicians and producers seeking reliable, professional-grade power connections.

Specifications

ASIN	B07YJKJY7C
Best Sellers Rank	#31,040 in Musical Instruments ( See Top 100 in Musical Instruments ) #69 in Patch Cables
Brand	Mr.Power
Brand Name	Mr.Power
Cable Type	Coaxial
Colour	Black
Compatible Devices	PC
Compatible Phone Models	No Compatible Phone Models
Connectivity Technology	Auxiliary
Connector Gender	Male-to-Female
Connector Type	Male-to-female
Country of Origin	USA
Customer Package Type	sealed anti-static bag
Customer Reviews	4.7 out of 5 stars 161 Reviews
Indoor Outdoor Usage	Indoor
Item Shape	Round
Manufacturer	Mr.Power
Model Number	MP-RPC-5521-2
Number Of Pins	3
Number of Items	2
Other Special Features of the Product	Low Voltage
Outer Material Type	Plastic
Recommended Uses For Product	Connecting guitar effect pedals to amplifiers or keyboards to power supplies
Special Feature	Low Voltage
Unit Count	1 Count

Reviews

S**X

The missing like to power guitar pedals

7.11.2025

K**Z

Use a standard power supply with nonstandard electronics

4.02.2026

O**A

Perfect!

24.09.2024

F**O

ottimo cavo

Esegue perfettamente la sua funzione, abbastanza robusto e preciso nella connessione senza giochi. Indispensabvile per l'alimentazione di pedalini per chitarra elettrica e multi effetti senza alimentatore proprio. Consigliato

8.01.2021

C**O

Funzionano bene

Spedizione veloce, tutto bene, grazie.

31.12.2020

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