A display device assembly includes an anti-static housing and a displaying module contained therein. The USB module can multiplex the application data and the debug data to and from the host computer via the USB. A power cable interface box may be disposed within the chassis, and the PCIB may receive alternating current power. The deposition of the Al oxide or the like in the molten steel onto the inner surface of the immersion nozzle and others can be prevented, and thereby the generation of the surface defects in the products can also be prevented. The access data is useable by the data service provider to set access privileges associated with the data exchanger that enable the data exchanger to be utilized to perform a desired function.