RoHS NiZn Snap-on Ferrite Core RH Series Clip-on magnetic ring core for electronic cable noise reduction and EMI/RFI suppression Product Overview Professional snap-open noise suppressor designed for charger power cords and data cables, providing effective EMI filtering with 200+ applications. Ideal for small device cable noise suppression with 9mm inner diameter, compatible with cables from 3mm to 30mm diameter. Technical Specifications Place of Origin China, Zhejiang Brand