Modular jack having an improved magnetic module

A communication port, comprising:

• at least two transmission lines, each of the transmission lines has two signal paths and is terminated, the transmission lines comprising:
• an input port and an output port for transmitting data or signals along the transmission line;
• a first transmission line having a first primary coil having two ends connected to the input port, a secondary coil having two tips terminated to the output port, a first ground coil having one ended load connected to the first primary coil, another opposite ended load connected to a common mode filter for grounding, a first grounding wire connected to the secondary coil;
• a second transmission line having a second primary coil having two ends connected to the input port, a second secondary coil having two tips terminated to the output port, a second grounding wire having one ended load connected to the first primary coil, another opposite ended load terminated to the first ground coil, and a second grounding wire connected to the secondary coil.