BLACK CLIP ON FERRITE CORE ANTI RADIO INTERFERENCE NOISE RFI EMI FILTERS CLAMPS | eBay
Amazon.com: Konohan 20 Pieces Ferrite Bead Clip on Ferrite Core Ferrite Noise Supressor Ferrite Rings RFI EMI Noise Filter Cable Clip for USB Video Data Cable, 0.11/0.19/0.27/0.35/0.51 Inch Inner Diameter, Black : Electronics
How Do Ferrite Beads Work and How Do You Choose the Right One? | PCB Design Blog | Altium