--- 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" price: "£15.26" currency: GBP in_stock: true reviews_count: 8 url: https://www.desertcart.co.uk/products/621632864-20pcs-clip-on-ferrite-ring-core-ferrite-bead-rfi-emi store_origin: GB region: United Kingdom --- # 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 **Price:** £15.26 **Availability:** ✅ In Stock ## Summary > 🛡️ Silence the noise, amplify your productivity. ## 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 - **How much does it cost?** £15.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/621632864-20pcs-clip-on-ferrite-ring-core-ferrite-bead-rfi-emi) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Shield Your Signals:** Premium nickel-zinc ferrite material actively suppresses electromagnetic and radio frequency interference for crystal-clear data flow. - • **Versatile EMI Defense:** Perfect for USB, network, telephone, and data cables—keep your devices interference-free in any professional environment. - • **Clip & Go Installation:** No tools, no fuss—snap these cores on and off cables in seconds to maintain peak performance without downtime. - • **Bulk Pack for Power Users:** 20 pieces mean you’re always ready to optimize your entire setup or share the tech love with your team. - • **Universal Fit, Zero Hassle:** Five precision sizes cover all your cable diameters from 3mm to 13mm—one set to rule your workspace. ## Overview This 20-piece set of clip-on ferrite ring cores includes five sizes (3mm to 13mm) made from nickel-zinc ferrite to effectively suppress EMI and RFI noise on various cables. Designed for quick snap-on installation, these noise suppressors are ideal for professionals seeking reliable interference reduction across USB, network, and data cables, ensuring cleaner signals and enhanced device performance. ## Description Product description Usage Tip & Important Notes For optimal effectiveness, select a ferrite core that matches the cable’s diameter, install it close to the noise source, and ideally, add one ferrite core to each end of the cable. During installation, ensure the ferrite core is kept away from heat-generating components to prevent overheating, which may lead to failure due to excessive ambient temperature. Note on Current Saturation If a high direct current (DC) or low-frequency alternating current (AC) passes through the core (e.g., when installed on a power cable), excessive current may saturate the core. This will significantly reduce its high-frequency impedance and diminish noise suppression performance Review: They are VERY effective - So good I ordered another set! These solve a lot of RFI problems! Review: These Are A Good Value If You Plan To Actually Use All Of Them - Ferrite beads or toroids? Best answer: some of both. I have purchased these before and bought more so I can control RFI leakage and common mode current around my radio room. The variety is nice and they are easy to install/remove. ## 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 | |---------------|-------| | Customer Reviews | 4.3 out of 5 stars 476 Reviews | ## 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) ![20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black - Image 2](https://m.media-amazon.com/images/I/614YIpv39wL.jpg) ![20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black - Image 3](https://m.media-amazon.com/images/I/414p-s5bJmL.jpg) ![20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black - Image 4](https://m.media-amazon.com/images/I/61ioBxrcgsL.jpg) ![20Pcs Clip-on Ferrite Ring Core Ferrite Bead RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black - Image 5](https://m.media-amazon.com/images/I/61RrwQ1XxRL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ They are VERY effective *by M***N on March 11, 2026* So good I ordered another set! These solve a lot of RFI problems! ### ⭐⭐⭐⭐⭐ These Are A Good Value If You Plan To Actually Use All Of Them *by D***D on February 27, 2026* Ferrite beads or toroids? Best answer: some of both. I have purchased these before and bought more so I can control RFI leakage and common mode current around my radio room. The variety is nice and they are easy to install/remove. ### ⭐⭐⭐⭐ Helps somewhat for radio signal interference *by K***N on April 10, 2026* It seemed to help reduce the interference from my overhead LED lighting to the one FM station it was messing up, but eventually connecting the stereo to a high quality outside roof level antenna resolved this issue. ## Frequently Bought Together - 20Pcs Clip-on Ferrite Ring Core RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable, Black - Taigoehua 5pcs 42X24X16mm Toroid Core,Ferrite Rings Toroid Core Iron (Black) - Tamicy 60 Pieces Clip-on Ferrite Ring Core RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter/Video Cable Power Cord (Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/621632864-20pcs-clip-on-ferrite-ring-core-ferrite-bead-rfi-emi](https://www.desertcart.co.uk/products/621632864-20pcs-clip-on-ferrite-ring-core-ferrite-bead-rfi-emi) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-09*