Our HD15 video cable, more commonly referred to as a SVGA male to male cable is typically used to connect a computer to a computer monitor. Ferrite Cores are small magnetic cores wrapped around the ends of the cable. They are used to suppress EMI/RFI electronic noise on the cable by absorbing the unwanted high frequencies and dissipating them. SVGA video cables sold by CableWholesale can handle the lowest resolutions used on computer monitors today all the way up to a maximum of 2048 x 1536.