EFFECTIVE NOISE REDUCTION This comprehensive set includes 20 ferrite core noise suppression filter ring clips that significantly diminish radio frequency interference, enhancing the performance and reliability of your electronics. WIDE COMPATIBILITY Suitable for a range of cables such as USB, FireWire, phone lines, power lines, and audio/video connections, providing versatility across different devices and setups. EASY INSTALLATION With a dual clip that easily attaches to cables, you can achieve clearer signals without complex installation or specialized tools. FIVE SIZE OPTIONS This set features five sizes (5 mm, 5 mm, 7 mm, 9 mm, 13 mm) to fit a variety of cables and devices, enabling effective noise management across different diameters. Applications In a home or office PC setup: clamp ferrite rings onto USB cables for keyboards, mice, and hubs to reduce RF noise and improve signal integrity. In a home theater or audio/video system: attach to HDMI and AV cables to minimize interference and enhance audio and video performance. On power and communication lines: use with printer cords, routers, and modem cables to stabilize connections and reduce noise on sensitive lines.