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Helps reduce EMI on AC power lines. Black plastic enclosed ferrite core for 5 mm AC power cords. Great for cutting noise on USB, firewire, phone, power cord, coaxial, audio, video cables, etc.
Easy to install with double snap clips
Reduce electro-magnetic interference and improve signal integrity.
Easy structure and convenient installation. Just clip it on and you will get clearer signal and faster data transmission.
Works for Radio static with Led light fixtures on off Road vehicles
Package included：20 PCS of Ferrite Ring Core