5x Ferrite Clamp on Core Mix 31, RFI Choke, 1/2 in coax Free Shipping
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