1unit 118X80X20mm Ultra Large ferrite core ferrite Ring for Transformer Chokes Isolator or Cord Filter: Amazon.com: Industrial & Scientific
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
IEUYO Clip-on Ferrite Ring Cores EMI RFI Signal Noise Filter Noise Suppressor for HDMI USB POWER Cable Diameter 3mm/5mm/7mm/9mm/13mm,5Size,24PCS : Amazon.com.au: Electronics