---
product_id: 194169961
title: "iFi iDefender+ USB Audio Ground Loop Eliminator (Type A > A)"
brand: "ifi"
price: "$123.53"
currency: USD
in_stock: true
reviews_count: 9
category: "I Fi"
url: https://www.desertcart.us/products/194169961-ifi-idefender-usb-audio-ground-loop-eliminator-type
store_origin: US
region: United States of America
---

# USB 3.0 high-speed data Removes ground loop noise Optional clean 5V power input iFi iDefender+ USB Audio Ground Loop Eliminator (Type A > A)

**Brand:** ifi
**Price:** $123.53
**Availability:** ✅ In Stock

## Summary

> 🔊 Silence the buzz, amplify your vibe.

## Quick Answers

- **What is this?** iFi iDefender+ USB Audio Ground Loop Eliminator (Type A > A) by ifi
- **How much does it cost?** $123.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/194169961-ifi-idefender-usb-audio-ground-loop-eliminator-type)

## Best For

- ifi enthusiasts

## Why This Product

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

## Key Features

- • **Smart Noise Defense:** Disconnects USB power grounds to eliminate multiple earth interference—your audio’s new best friend.
- • **Power Up with Purity:** Add an iPower 5V supply to supercharge your USB devices with ultra-clean power and less noise.
- • **Plug & Play Peace of Mind:** Effortless setup with Type A > A USB connection, designed for professionals who demand flawless sound.
- • **Buzz-Free Audio Experience:** Silences annoying ground loop hums for crystal-clear sound at home or on the road.
- • **Seamless USB 3.0 Compatibility:** Maintains lightning-fast data transfer without compromising audio integrity.

## Overview

The iFi iDefender+ USB Audio Ground Loop Eliminator (Type A > A) is a precision-engineered device that reduces unwanted ground loop noise in your audio setup by disconnecting USB power grounds. Supporting USB 3.0 speeds, it preserves high-quality data transfer while enhancing audio clarity and dynamic range. With an optional 5V clean power input, it offers flexible noise filtration for USB-powered devices, making it an essential tool for audiophiles and professionals seeking a cleaner, more immersive sound experience.

## Description

desertcart.com: iFi iDefender+ USB Audio Ground Loop Eliminator (Type A > A) : Electronics

Review: Helped with white noise problem - Made a noticeable difference in the sound quality. I had been dealing with a heavy noise floor for a long time. Tried all the tips for solving ground loop issues and nothing worked. In my case it was what sounded like loud radio static on a dead station. I thought maybe I had a bad SM7B or interface and it was very frustrating. The mic and audio was always unusable due to a super heavy amount of white noise, more than you'd expect from a typical noise floor. This appears to have drastically lowered the noise. It isn't 100% but the audio is absolutely usable now compared to the hot trash I was dealing with prior. It's expensive for what feels like a fancy flash drive, but it was worth it in my case. The noise issue must've been something interfering from inside my PC, if you've done enough troubleshooting with ground loop noise and still have static and think it is your computer that might be the culprit, then this will likely help with your issue too. I also coupled this with a cable that had ferrite as well to further help with reduction.
Review: Doesn't work well at all - I have attached 3 photos showing the line noise from a uac222. One with no usb ground eliminator and the other with the eliminator powered and not powered. Doesn't work well at all. I would have no problem if this was a ground noise reducer bevause then the product you are being sold would be accurate. This does NOT eliminate ground noise. It may reduce audible ground noise to a more acceptable level. Hoever this porduct by no means will elikinate ground loops. The frequencies if searched for can be easily found in a spectrum plotter tool. I have reported this losting to desertcart as being inacurate. If you need to redice ground noise: then this is a good product for you. If you are looking to eliminate it as the product clearly states it will. This will simply not do that. And marketing the product as so is a somewhat dishonest dipictiin of yhis products capabilities. Please see attached images for reference and proof of function.

## Features

- ✅REMOVE UNWANTED GROUND NOISE - Silence buzzing caused by unwanted ground loops from your audio chain at home or in your car sound system. Available in 3 connection versions: USB A input to A output, USB C input to C output, USB C input to A output
- ✅DEFEND AGAINST TOO MANY EARTHS - Disconnects the USB power from the PC, laptop, or other USB music source to eliminate multiple earths which cause noise interference
- ✅SMART TECHNOLOGY - Retains USB 3.0 high speed data transfer technology for optimal signal transmission. Significantly reduces system noise floor and increases dynamic contrast, warmth and resolution in your music
- ✅ROOM FOR MORE SOLUTIONS - Use an iPower 5V power supply (sold separately) into the side USB C port for clean DC power on USB powered devices. Not to worry, other 5V power supplies used will benefit from additional noise filtration
- ✅ PLEASE READ : The iDefender+ is only a solution for removing ground loops within your system which occurs from having too many grounded devices in your audio chain. If you are unsure if you have a ground loop, please visit our website and contact our support team who will assist you.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0849J33T9 |
| Best Sellers Rank | #2,967 in USB Cables #5,397 in Home Audio Accessories |
| Customer Reviews | 3.6 3.6 out of 5 stars (922) |
| Date First Available | January 28, 2020 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.233 ounces |
| Item model number | iDef+ |
| Manufacturer | Abbingdon Music Research |
| Product Dimensions | 5 x 3.6 x 0.6 inches |

## Product Details

- **Brand:** iFi
- **Color:** orange
- **Compatible Devices:** Laptop, Personal computer
- **Connector Type:** USB Type A
- **Item dimensions L x W x H:** 5 x 3.6 x 0.6 inches

## Images

![iFi iDefender+ USB Audio Ground Loop Eliminator (Type A > A) - Image 1](https://m.media-amazon.com/images/I/61Tj-80B71L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Helped with white noise problem
*by N***U on January 17, 2025*

Made a noticeable difference in the sound quality. I had been dealing with a heavy noise floor for a long time. Tried all the tips for solving ground loop issues and nothing worked. In my case it was what sounded like loud radio static on a dead station. I thought maybe I had a bad SM7B or interface and it was very frustrating. The mic and audio was always unusable due to a super heavy amount of white noise, more than you'd expect from a typical noise floor. This appears to have drastically lowered the noise. It isn't 100% but the audio is absolutely usable now compared to the hot trash I was dealing with prior. It's expensive for what feels like a fancy flash drive, but it was worth it in my case. The noise issue must've been something interfering from inside my PC, if you've done enough troubleshooting with ground loop noise and still have static and think it is your computer that might be the culprit, then this will likely help with your issue too. I also coupled this with a cable that had ferrite as well to further help with reduction.

### ⭐ Doesn't work well at all
*by M***H on July 7, 2021*

I have attached 3 photos showing the line noise from a uac222. One with no usb ground eliminator and the other with the eliminator powered and not powered. Doesn't work well at all. I would have no problem if this was a ground noise reducer bevause then the product you are being sold would be accurate. This does NOT eliminate ground noise. It may reduce audible ground noise to a more acceptable level. Hoever this porduct by no means will elikinate ground loops. The frequencies if searched for can be easily found in a spectrum plotter tool. I have reported this losting to amazon as being inacurate. If you need to redice ground noise: then this is a good product for you. If you are looking to eliminate it as the product clearly states it will. This will simply not do that. And marketing the product as so is a somewhat dishonest dipictiin of yhis products capabilities. Please see attached images for reference and proof of function.

### ⭐⭐⭐⭐⭐ This thing sincerely works.
*by E***A on February 21, 2021*

I have a Schiit Modi and Magni stack. They're attached to a system running an Nvidia RTX 3080 GPU, and whenever a game is running north of 60fps, the graphics card dumps so much electrical noise through my system that it becomes readily audible through the headphones or speakers I have attached to them at higher volumes. This happens even when absolutely nothing is attached to the PC other than the USB DAC - no external ground loops. It's a droning, grinding sound that is extremely obnoxious and changes in pitch based on what's being displayed. Just plugging the Modi in through this dongle (while keeping the modi itself powered by an external usb connection) cuts the electrical noise by roughly 90%, which is enough that I can't hear it in the slightest until pushing the headphones/speakers to unreasonable listening levels. Plugging a small external USB power supply to the iDefender+ itself (even the 5 volt 1 amp switching variety like what comes with most phones, for example) further reduces the noise at high volumes, until it's only just barely audible through a silent line at 100% maxed out volume. I can only assume some graphics cards cause an internal ground noise loop. Whatever the case, this little dongle does a terrific job of silencing the noise.

## Frequently Bought Together

- iFi iDefender+ USB Audio Ground Loop Eliminator (Type A > A) 5V
- iFi SilentPower iPower2 - Low Noise DC Power Supply - Upgrade Your Audio/Video/Electronics (5V / 2.5A)…

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-21*