turing countersunk holes for #5 mounting screws and additional ground contact to shell connection.The NEUTRIK part NC3MBH-E is a 3 pole male XLR receptacle from the B Series. It offers separate ground contact to the mating connector shell and front panel, ensuring a reliable grounding connection. With a steel retention lug and horizontal PCB mount, this receptacle provides a secure and stable connection for your audio equipment.What sets the NC3MBH-E apart from the A series is its metal mounting flange featuring countersunk holes for #5 mounting screws. This design allows for easy and efficient installation. Additionally, this receptacle has an additional ground contact to the shell connection, further enhancing the grounding capabilities.The NEUTRIK NC3MBH-E is a high-quality audio connector that offers durability, stability, and excellent grounding performance. It is the perfect choice for professional audio applications where reliable connections are crucial.