Enhance your electronic setup with these versatile Eborsi Ferrite Ring Cores. This 10-piece set of ferrite bead clamps is designed to reduce electromagnetic interference (EMI) and radio-frequency interference (RFI) on various types of cables. The rings accommodate different cable sizes with options for 3mm, 5mm, 7mm, 9mm, and 13mm diameter cables, making them perfect for a wide range of applications. These black plastic-enclosed ferrite cores are ideal for reducing noise on multiple cable types including USB, firewire, phone cords, power cords, coaxial connections, and audio/video cables. The clip-on design allows for easy installation without requiring any wire cutting or special tools. Whether you're dealing with unwanted interference in your home electronics, office equipment, or audio setup, these ferrite ring cores provide a practical solution for improving signal quality and reducing electromagnetic noise.