Manufactured by MH Connectors, the MH3101-8821 is a black RJ45 coupling socket designed for built-in use. It supports Cat 5, Cat 6, and Cat 7 connections, making it suitable for a variety of network applications. This RJ45 connector is typically used in Ethernet networking setups. https://elecena.pl/product/28917943/mh-connectors-3101-8821-rj45-coupling-socket-built-in-black-1-piece 2025-06-07 https://elecena.pl/product/28917943/mh-connectors-3101-8821-rj45-coupling-socket-built-in-black-1-piece 2026-07-07