Gig Amax CAT 5e Shielded Patch Cords exceed all performance requirements up to 100 MHz They protect critical data from EMI (electromagnetic interference) and RFI (radio frequency interference). The CAT 5e Shielded Patch Cord and other Leviton shielded solutions are ideal for use in healthcare, manufacturing, casinos and other environments where EMI/RFI may be a concern. These solutions are Rockwell Automation Encompass approved.