--- product_id: 39453900 title: "20 Pcs Snap on Ferrite Core Cord Ring RFI EMI Noise Filter Suppressor Cable Clip for 3.5mm/5mm/7mm/9mm/13mm Diameter Cable, Black" brand: "forsun" price: "€ 18.81" currency: EUR in_stock: true reviews_count: 8 category: "Forsun" url: https://www.desertcart.pt/products/39453900-20-pcs-snap-on-ferrite-core-cord-ring-rfi-emi store_origin: PT region: Portugal --- # Easy snap-on installation Reduces EMI/RFI noise 5 sizes fit 3-13mm cables 20 Pcs Snap on Ferrite Core Cord Ring RFI EMI Noise Filter Suppressor Cable Clip for 3.5mm/5mm/7mm/9mm/13mm Diameter Cable, Black **Brand:** forsun **Price:** € 18.81 **Availability:** βœ… In Stock ## Summary > πŸ”’ Lock in Signal Purity, Lose the Noise! ## Quick Answers - **What is this?** 20 Pcs Snap on Ferrite Core Cord Ring RFI EMI Noise Filter Suppressor Cable Clip for 3.5mm/5mm/7mm/9mm/13mm Diameter Cable, Black by forsun - **How much does it cost?** € 18.81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/39453900-20-pcs-snap-on-ferrite-core-cord-ring-rfi-emi) ## Best For - forsun enthusiasts ## Why This Product - Trusted forsun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Snap & Go Convenience:** Tool-free double snap design makes installation a breezeβ€”clip on and enjoy instant noise reduction. - β€’ **Versatile Application Range:** Ideal for USB, HDMI, power cords, AV cables, and moreβ€”future-proof your tech setup effortlessly. - β€’ **Professional Grade Durability:** Robust black ferrite cores built to last, ensuring consistent performance in demanding environments. - β€’ **Universal Fit for Every Cable:** Five precision sizes (3, 5, 7, 9, 13mm) to perfectly secure and filter your cables. - β€’ **Crystal-Clear Signal Integrity:** Effectively suppresses electromagnetic interference for flawless audio, video, and data transmission. ## Overview This 20-piece set of snap-on ferrite core cable clips includes five sizes to fit cables from 3mm to 13mm diameter. Designed to reduce electromagnetic interference (EMI) and radio frequency interference (RFI), these black ferrite rings improve signal clarity across a wide range of cables including USB, HDMI, audio, and power cords. Easy to install with a double snap mechanism, they provide a professional-grade solution to noise suppression for your home or office tech setup. ## Description [Feature]Helps reduce the E.M.I. black plastic closed ferrite core on the AC power cord for 5 mm AC power cords. Ideal for eliminating noise from USB, Firewire, telephone, power cord, coaxial cable, audio, video cable, etc.[Scope of application]βœ”3.5mm/ 0.14in (inside diameter): for 0.06 - 0.14in / 1.5 - 3.5mm cableApplications: Car DVR, headphone cable, speaker cable, mouse cable, keyboard cable, USB cable, etc.βœ”5mm/ 0.2in (inside diameter): for 0.14 - 0.2in / 3.5 - 5mm cableApplications: Car DVR, speaker cable, mouse cable, keyboard cable, USB cable, RS232 serial camera cable, etc.βœ”7mm/ 0.27in (inside diameter): for 0.2 - 0.27in / 5 - 7mm cableApplications: AV cable, coaxial audio, audio power cable, IP serial camera.βœ”9mm/ 0.35in (inside diameter): for 0.27 - 0.35in / 7 - 9mm cableApplications: HDMI cable, VGA cable, DVI cable, power cable, speaker cable, industrial cable, etc.βœ”13mm/ 0.51in (inside diameter): for 0.35 - 0.51in / 9 - 13mm cable[Easy to use]Easy to install double snaps; reduce electromagnetic interference and improve signal integrity.The structure is simple and easy to install. Just clip it for a clearer signal and faster data transfer.[Product description]Packing: 20 * cable clamp (includes 5 different sizes) for wires with an inner diameter of 3/5/7/9/13 mm Review: Very nice! - Price is good on these refurbished computers. Please be aware that your monitor may have to have a view port to HDMI adapter to work. mine did. the are 5 bucks. Read all the reviews before you buy, the seller may include the adapter if you ask. I did not read reviews and did not ask, so I had to buy one. My bad! Easy to set up, works great, Fast, fast, fast! Review: Auto LED light bar head unit static - LED light was making static in the head unit after installing a front facing camera. I used these on the light power wires very close to the light bar. The static is completely gone. The quality is good and none were broken. I am very satisfied with the product and results. ## Features - Package included: 20 pieces ferrite cable clips (with 5 different size) - 3 mm: outer dimension-25 mm x 13 mm; 5 mm: outer dimension-25 mm x 13 mm; 7 mm: outer dimension-30 mm x 17 mm; 9 mm: outer dimension-35 mm x 20 mm; 13mm: outer dimension-36 mm x 24 mm - Fits for cord with 3 mm, 5 mm, 7 mm, 9 mm and 13 mm inner diameter - Reduce electro-magnetic interference and improve signal integrity - Color: black ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N0AV746 | | Best Sellers Rank | #121,033 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #23 in Electromagnetic Interference Filters | | Date First Available | November 9, 2016 | | Is Discontinued By Manufacturer | No | | Item Weight | 4.2 ounces | | Item model number | 43237-2 | | Manufacturer | FORSUN | | Package Dimensions | 6.18 x 3.94 x 1.77 inches | ## Images ![20 Pcs Snap on Ferrite Core Cord Ring RFI EMI Noise Filter Suppressor Cable Clip for 3.5mm/5mm/7mm/9mm/13mm Diameter Cable, Black - Image 1](https://m.media-amazon.com/images/I/51gXjI0NsrL.jpg) ## Questions & Answers **Q: Could these work for a 3.5mm double coil wire?** A: These cores come in various sizes, that you need 3.5 mm is accommodated in a 1.5 mm cable at least up to 3.5 mm maximum, and if it does not work, you can use the core of 5 mm, which fits into a 3.5 mm cable at least up to 5 mm and I think that the cable you have should fit well in one of those two cores. **Q: what frequencies do these absorb** A: that depends on the length of cable they are being used on. It's the cables that act as antennas, both radiating and receiving signals. It may take multiple units on your cables to reduce/eliminate the bothersome signals. **Q: Will these filter out a radio station leaking into my audio** A: It depends on the strength and the proximity of the transmitting station. Under most conditions, you may be able to minimize or eliminate incoming radio frequency interference by clamping these onto your speaker leads. It may take more than one if the signal is very strong. **Q: Could these work for a 3.5 mm double coil wire?** A: Should work fine. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very nice! *by J***L on July 12, 2023* Price is good on these refurbished computers. Please be aware that your monitor may have to have a view port to HDMI adapter to work. mine did. the are 5 bucks. Read all the reviews before you buy, the seller may include the adapter if you ask. I did not read reviews and did not ask, so I had to buy one. My bad! Easy to set up, works great, Fast, fast, fast! ### ⭐⭐⭐⭐⭐ Auto LED light bar head unit static *by R***. on May 17, 2023* LED light was making static in the head unit after installing a front facing camera. I used these on the light power wires very close to the light bar. The static is completely gone. The quality is good and none were broken. I am very satisfied with the product and results. ### ⭐⭐⭐⭐ Double check everything *by A***O on December 15, 2025* It helped take out some of the noise but my problem was more deeper than just Wired's ## Frequently Bought Together - 20 Pcs Snap on Ferrite Core Cord Ring RFI EMI Noise Filter Suppressor Cable Clip for 3.5mm/5mm/7mm/9mm/13mm Diameter Cable, Black - BOSS Audio Systems Ground Loop Isolator B25N noise Filter for Car Audio Systems --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/39453900-20-pcs-snap-on-ferrite-core-cord-ring-rfi-emi](https://www.desertcart.pt/products/39453900-20-pcs-snap-on-ferrite-core-cord-ring-rfi-emi) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*