Ferrite Beads and ChipsFerrite beads and chips are small, bead- or chip-shaped ferrite materials that are commonly used in EMI (electromagnetic interference) optimization in cables. Ferrite beads and chips have magnetic properties that allow them to absorb electromagnetic energy and prevent it from interfering with the signals carried by the cable. They are often used in the form of beads or chips that can be attached to the cable at specific points to provide EMI protection. Ferrite beads and chips are effective at blocking a wide range of frequencies and are relatively inexpensive, making them a popular choice for EMI optimization in cables.