- Cinch Connectivity Solutions, a Bel group, has a wide range of connectors and cable assemblies suited for RF, Microwave Fiber Optic, and multi-pin signal transmission. Cinch Connectivity is a vertically integrated supplier of custom solutions, fixed length and semi rigid cable assemblies from DC to 50 GHz.  Our products are engineered to satisfy the most demanding and complex requirements. Cinch Connectivity’s products support wireless communications, data networking, test and measurement, telecommunications, broadcast, medical, military, aerospace and industrial applications. Cinch Connectivity Solutions is proud to have partnered with Digi-Key for over 30 years with the Johnson line of RF connectors and hardware. Other brands in the portfolio include AIM-Cambridge, Trompeter, Semflex, Midwest Microwave, and Vitelec, as well as Cinch connectors. Related product brands include: Bel, Bel Fuse, Bel Power Solutions, Signal Transformer, Stewart Connector, TRP Connector.