Computer/Digital RFI Solutions Ferrite filter products can help speed up digital devices by suppressing common mode current from RFI sources OR prevent digital devices from emitting RFI on its connecting cables and power supply lines. Mix 75 Store/Ferrite Core Products/Mix 75Ring - Mix 75 RFI Range: 150 Khz-10 MHzRing - Mix 75 RFI Range: 150 Khz-10 MHzSnap On - Mix 75 - RFI Range 150 KHz-10 MHzSnap On - Mix 75 - RFI Range 150 KHz-10 MHzSlip On - Mix 75 - RFI Range 150 KHz-10 MHzSlip On - Mix 75 - RFI Range 150 KHz-10 MHz