10 Pcs Anti-Interference Ferrite Cores – Snap-On Magnetic Rings For Cables (25x13mm, 5mm Hole)

Ever get weird buzzing from your speakers or static on your monitor? It might be electromagnetic interference from your cables. These little ferrite cores can help. You get 10 black rings made of nickel-zinc ferrite. They measure about 25mm long by 13mm wide, with a 5mm inner hole. Just snap them onto your cables – power cords, USB cables, audio cables, even mouse/keyboard wires – near the ends. They act as a filter, choking out high-frequency noise and cleaning up your signal. This can mean clearer audio, less video static, and generally happier electronics. The snap-on design makes them reusable and easy to move between cables. No tools or glue needed. A simple, cheap trick for a cleaner setup, especially useful for home entertainment systems, computer desks, or car audio installations.