FT50-43 Ferrite Cores(20pcs pack) are used for all kinds of data cables, USB cables, telephone cables, network cables, for shielding external electromagnetic interference; reduce electromagnetic interference and improve signal integrity of electronic equipment, suitable for RF circuits, cable noise suppression, switching power supplies and communication modules, ideal for DIY electronic production, audio systems.FT50-43 ferrite core is made of 43-type ferrite material, high efficiency RFI/EMI filtering performance, optimized 10kHz-200MHz IF filtering, reduce electromagnetic interference, improve the stability and clarity of the power supply and signal lines