Split ferrite core products are used as suppression cores for round cable and are available for a wide range of cable diameters. The A5 material cores are installed around a cable and help attenuate any form of EMI emission. The nylon case makes the assembly of the core easily in equipment where retrofit and testing is a necessity. The split ferrite cores with plastic casing allows protection against unwanted EMI radiation in digital equipment such as personal computers, word processors, fax machines, display equipment, photocopiers and computer consoles. This protection ensures immunity against transmission and other types of noise in such equipment is essential.