Mm Ferrite Core Fax Machines Filter Ring Noise Suppressor Audio Equipment

2/5x 5mm Ferrite Core Noise Suppression Filter Ring. Ideal for noise cancellation on USB, FireWire, Phone, Powerline, Coaxial, Audio and Video cables. clip on the cable for a clearer signal. Due to factors such as display brightness and light brightness, the actual color of the product may be slightly different from the website picture.

eBay