A perpendicular magnetic recording head includes a main magnetic pole layer; and a return yoke layer laminated on the main magnetic pole layer with a magnetic gap layer formed of a nonmagnetic material disposed on an opposing surface opposite a recording medium. A communicator is coupled to the RFID reader to receive the read identifications and then communicate the received read identifications over the wireless interface, through one of the gateways, to the central data processing system. The mixer further including a swirler disposed therein the annular housing for inducing a cyclonic motion in the corrugated cyclone mixer.