An electrical connector comprises an insulative housing, a plurality terminals received in the housing, a stiffener engaged with the housing, a clip and a lever pivotably mounted on two opposite sides of the stiffener. A distal end of the housing includes a cover having a movable tab. The mirroring relationship is transitioned to a duplex pending state in response to determining that the mirroring relationship is in a full duplex state. glucose ; cholesterol, fatty acids and triglycerides. Moreover, the method uses stamping in order to form CNTs, so it is very advantageous in mass production. The direction of the magnetic field generated by the sense current flowing through the magnetoresistive film in the perpendicular direction to film plane is made substantially anti-parallel to the direction of the biasing magnetic field in a vicinity of a portion of the magnetoresistive film where a signal magnetic flux is introduced.