This LAN magnetics module provides signal isolation and impedance matching for Ethernet network interfaces in switches, routers, network cards, and other datacom equipment. Each module is fully epoxy-encapsulated for mechanical protection and electrical insulation, with through-hole pin arrays for direct PCB mounting. Multiple package sizes and pin counts are available, including compact single-port modules and larger multi-port designs, to support 10/100/1000 Mbps Ethernet applications. The module integrates the transformer, common-mode choke, and related passive components into a single package, simplifying PCB layout and reducing component count compared to discrete magnetics designs. Custom pin configuration, package size, and electrical specification (insertion loss, return loss, isolation voltage) are available for OEM/ODM orders.