Group I/O Products YAGEO Group (YAGEO, KEMET, Pulse) I/O Products include antennas, capacitors, chokes, filters, transformers, connectors, sensors, and inductors. In a digital system, the inputs and outputs are vital in their communication with other systems and devices. These are the arms and legs of the system that give it the ability to do work. They typically consist of USB connections, internal and external antennas, integrated RJ45 modules, and environmental sensors. Each of these connectors typically requires some type of controller, and in some cases, signal line chokes to filter out various noises. The controllers themselves contain RF capacitors and inductors that filter out unwanted noise and interfering signals. The block diagram below is an example of a network of input and output connectors and devices offered by YAGEO Group.