MRJR558101 is a rugged 8-position modular jack receptacle designed for PCB mounting with an integrated right-angle cable header. The connector features a diecast zinc shell with nickel plating, phosphor bronze contacts with gold plating on mating areas, and engineering thermoplastic inserts rated UL94V-0 for flammability. It includes optional LED indicators (left green and right yellow configuration available) and supports #4-40 UNC or M3 x 0.5 threaded mounting holes. The 20-position cable header provides flexible interconnection options, and the connector is fully RoHS compliant per EU Directive 2011/65/EU. This connector is ideal for industrial and telecommunications applications requiring robust, reliable connections in demanding environments.