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Eligible for Return, Refund or Replacement within 30 days of receipt
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uxcell 4.7mm Ferrite Cores Ring Clip-On RFI EMI Noise Suppression Filter Cable Clip, Black 10pcs

4.3 4.3 out of 5 stars 78 ratings
$9.69
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Black
4.7mm
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Purchase options and add-ons

  • 【Specification】Size: 4.7mm (Suitable for 4.7-6.7mm cables); Package Includes: 10 x Ferrite Core Ring
  • 【Reduce Single Interference】The ferrite core effectively helps in reducing electromagnetic interference(EMI) and RF interference(RFI), and get clearer signal and audio quality.
  • 【Detachable and Reusable】Clip on wire and removable easily. It won't cause any distortion during signal transmission.
  • 【Wide Application】Mainly used for electronic connecting wire, air conditioner, PC, AC power lines, video and audio cable, telephone line, and other home appliances etc.
  • 【Better Shielding】If the wire is too thin too loose or you want get better anti-interference effect, you could wrap it around more.
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Product details

  • Package Dimensions ‏ : ‎ 5.2 x 3.43 x 1.26 inches; 4.06 ounces
  • Item model number ‏ : ‎ a19062900ux0384
  • Date First Available ‏ : ‎ September 29, 2019
  • Manufacturer ‏ : ‎ uxcell
  • ASIN ‏ : ‎ B07YJWYKFH
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.3 4.3 out of 5 stars 78 ratings

Product Description

Description:
-Clip on ferrite bead cable can be used on all kinds of wire cords such as: Power Cord, Audio Cables, Data Cable, USB Cables.
-It helps improving the electromagnetic field and signal quality around the cable, avoiding outside interference.
-It won't cause distortion of the transmitted signal and won't affect your audio, video and picture quality.

Note:
Please install them in place near the interference source. (Near the import and export of shielding case as much as possible.) If a cable has equipment that needs to be protected on both sides, install one at each end.

Specification:
Model: Φ4.7-6.7mm
Color: Black
Fit Cord Diameter: 4.7~6.7mm
Size: 16 x 30mm (0.63" x 1.18") (D*L)
Application: Coaxial Cable, Audio Power Cable, Industrial Control Cable, etc.

Package Content:
10 x RFI EMI Filters

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
78 global ratings
Excelente
5 Stars
Excelente
Excelente producto, justo lo ofertado, gracias al vendedor!!
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Top reviews from the United States

Tyler G
5.0 out of 5 stars Fixed my speaker hum due to unshielded cabling
Reviewed in the United States on March 9, 2024
Color: BlackSize: 13mmVerified Purchase
I have some wall mounted speakers connected via unshielded cabling run through the wall. Replacing the cable wasn’t really feasible so I bought these hoping it might help.

I was pleasantly surprised that these effectively eliminated all the hum and saved my speaker setup!

This isn’t going to solve all problems with perceived hum, but in my case it was exactly what I needed to effectively shield my speakers from the electromagnetic interference from adjacent electrical cabling.
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Matt from New York
4.0 out of 5 stars Too small for cat5e cable
Reviewed in the United States on July 17, 2021
Color: BlackSize: 5mmVerified Purchase
I tried these on cat5e cables, and just a bit too small. The little prongs that stick out the ferrites appear to be the problem. I think the round part diameter is sufficient. These are supposed to be 5mm and I had measured my ethernet cable diameter at about 4.7mm, so they should have fit.
These are small measurement amounts, so I'm hesitant to fault the product too much...otherwise they seem fine and I'll keep them around for smaller cables that might need them.
2 people found this helpful
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Lorne
5.0 out of 5 stars As described
Reviewed in the United States on February 4, 2024
Color: BlackSize: 5mmVerified Purchase
As described fit good, I’m sure they do the job
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Bruce H. Spence
5.0 out of 5 stars Helps get rid of RFI on my ham radio
Reviewed in the United States on May 13, 2023
Color: BlackSize: 13mmVerified Purchase
I installed these on wires on my truck to help get rid of RFI. They have helped and are easy to install and remove.
2 people found this helpful
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Spammy Hagar
3.0 out of 5 stars These did virtually nothing for choking common-mode HF frequencies, but see review for likely cause.
Reviewed in the United States on November 2, 2023
Color: GreySize: 9mmVerified Purchase
I was hoping to use these on ~9mm cat7 cable to choke some PoE noise that my cameras spew from around 10-20MHz.

3 of these in a row on 9mm cable, right at the camera basically did nothing for my problem (since that's essentially just 3 turns, and would be around 240 ohms @ 25MHz, according to their specs), whereas 8 turns on a big ft240-43 donut works great. I just can't fit that big FT240 toroid back up through the cable hole in my situation.

I was trying not to have to go winding big chokes in the attic, but I guess that's my next option.

These are probably much more effective on smaller wire that you can achieve a few turns with, but I cannot attest to that.
For the price, they were worth a try, and I'm sure I'll find something to use them on.
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Alex P.
5.0 out of 5 stars Good for RG8U coax
Reviewed in the United States on December 12, 2022
Color: BlackSize: 9mmVerified Purchase
I've slung a number of these fighting RFI. Instead I ended up with a 1:1 balun that worked better. But these are good.
2 people found this helpful
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jim
1.0 out of 5 stars too small
Reviewed in the United States on January 19, 2024
Color: BlackSize: 5mmVerified Purchase
Advertised to fit coax up to 5mm ; My cable was 4.92 and and beads were to small wouldn't close over cable.
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Andrés Felipe González
5.0 out of 5 stars Excelente
Reviewed in the United States on March 24, 2022
Color: GreySize: 9mmVerified Purchase
Excelente producto, justo lo ofertado, gracias al vendedor!!
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Andrés Felipe González
5.0 out of 5 stars Excelente
Reviewed in the United States on March 24, 2022
Excelente producto, justo lo ofertado, gracias al vendedor!!
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One person found this helpful
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