---
product_id: 621632864
title: "20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black"
brand: "fefu"
price: "HK$170"
currency: HKD
in_stock: true
reviews_count: 8
category: "Fe Fu"
url: https://www.desertcart.hk/products/621632864-20pcs-clip-on-ferrite-ring-core-ferrite-bead-rfi-emi
store_origin: HK
region: Hong Kong
---

# Snap-on design for instant install 5 sizes fit 3-13mm cables Nickel-zinc ferrite blocks EMI/RFI 20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black

**Brand:** fefu
**Price:** HK$170
**Availability:** ✅ In Stock

## Summary

> 🛡️ Clip in, tune out interference—because your signal deserves the best!

## Quick Answers

- **What is this?** 20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black by fefu
- **How much does it cost?** HK$170 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/621632864-20pcs-clip-on-ferrite-ring-core-ferrite-bead-rfi-emi)

## Best For

- fefu enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Tech Armor:** Perfect for data, USB, network, and telephone cables—protect your devices from signal disruption everywhere.
- • **Plug & Play Noise Defense:** Snap-on cylindrical design means instant noise suppression—clip it and forget it.
- • **Universal Fit, Zero Hassle:** Five precision sizes clip on cables from 3mm to 13mm effortlessly—no tools needed.
- • **Bulk Pack for Total Coverage:** 20-piece set ensures every cable in your workspace or home is noise-free and optimized.
- • **Powerful EMI & RFI Shielding:** Premium nickel-zinc ferrite material suppresses electromagnetic and radio frequency interference for crystal-clear signals.

## Overview

This 20-piece set of clip-on ferrite ring cores offers versatile EMI and RFI noise suppression for cables ranging from 3mm to 13mm in diameter. Made from high-quality nickel-zinc ferrite, these snap-on beads are easy to install and effectively reduce electromagnetic interference across various electronic devices, ensuring cleaner signals and enhanced device performance.

## Description

desertcart.com: 20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black : Industrial & Scientific

Review: great for the price - work great
Review: Works pretty good. - These helped reduce the amount of RF going into my jeep’s radio.

## Features

- Packaging Includes: 20 snap-on ferrite cores (5 sizes included), suitable for cables with inner diameters of 3/5/7/9/13 mm
- Material: Made of nickel-zinc ferrite, which enhances the electromagnetic field around the coil and effectively resists external interference
- Easy Installation: Features a cylindrical snap-on design for simple installation—just open it, clip onto the cable, and it's ready to use
- Versatile Applications: Ferrite beads are widely suitable for electromagnetic interference (EMI) suppression in various electronic devices, such as data cables, USB cables, telephone lines, and network cables, to shield against external electromagnetic interference

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CSXZWGD6 |
| Best Sellers Rank | #3,492 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Electromagnetic Interference Filters |
| Date First Available | April 3, 2024 |
| Item Weight | 10.5 ounces |
| Item model number | F009 |
| Manufacturer | FeFu |
| Package Dimensions | 6.54 x 4.53 x 0.67 inches |

## Images

![20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black - Image 1](https://m.media-amazon.com/images/I/61txVJc8hOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ great for the price
*by F***N on January 9, 2026*

work great

### ⭐⭐⭐⭐⭐ Works pretty good.
*by J***E on December 13, 2025*

These helped reduce the amount of RF going into my jeep’s radio.

### ⭐⭐⭐⭐ Nice assortment of sizes decent price
*by J***H on December 6, 2025*

Bought these to suppress high frequency interference in an electrical system but for my particular issue they did not help so I cannot comment much, a few of the magnets were damaged from apparent rough handling

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.hk/products/621632864-20pcs-clip-on-ferrite-ring-core-ferrite-bead-rfi-emi](https://www.desertcart.hk/products/621632864-20pcs-clip-on-ferrite-ring-core-ferrite-bead-rfi-emi)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-23*