stardrift 10-Pack 3mm Diameter Snap on Ferrite Core Bead Choke Ring Cord RFI EMI Noise Suppressor Filter for HDMI DVI VGA Cable Black (3MM)

Application Occasions of This Great Noise Attenuator
1.Great for blocking RF-interfere
2.If you have computer interference around your computer, get a set and use them,they work.
3.If you are a ham radio operator and the antenna is in your attic.Put them on USB cables, power cables
4.Fixed LED lighting interference from some over-the-air television channels
5.More occasions

Sizes Specification
3MM (inner diameter): suitable for 3.0-4.5mm cables;
5MM (inner diameter): suitable for 5.0-6.5mm cables;
7MM (inner diameter): suitable for 7.0-8.5mm cables;
9MM (inner diameter): suitable for 9mm cables;
11MM (inner diameter): suitable for 11mm cables;
13MM (inner diameter): suitable for 10.5-12.5mm cables;
15mm (inner diameter): suitable for 14.0-15.0mm cables;

Package Includes:10 * 3mm Ferrite Core Ring