Ferrite noise filter with a clip mechanism to attach to a (data) cable up to 9mm thick. The filter helps reduce interference from external sources, like wireless transmitters. Make sure to clip it on no more than 10cm away from the connector. https://elecena.pl/product/27744283/opencircuit-ferrite-clamp-9mm-suppression-filter 2025-01-23 https://elecena.pl/product/27744283/opencircuit-ferrite-clamp-9mm-suppression-filter 2026-02-21 https://elecena.pl/product/27744283/opencircuit-ferrite-clamp-9mm-suppression-filter 2026-04-12 https://elecena.pl/product/27744283/opencircuit-ferrite-clamp-9mm-suppression-filter 2026-04-26