A method of power saving for a wireless transceiver is disclosed. In the event of dynamic changes in output preliminary control is implemented in accordance with the invention with two or more stored characteristics. The receiver and transmitter circuitry can be configured to operate in one of three modes of operation: cascade mode, dual channel mode, and single channel mode. Content of a user entry field within the object is parsed to determine whether a predefined keyword is present, and if so, at least one parameter associated with the keyword and at least one format or rule related to the at least one parameter are identified. Two second slide rails are mounted on the top and bottom sidewalls of the server module, to mate with the first slide rails, thereby slidably attaching the server module to the rack. The transistors pDTrt and nDTrt are gate-controlled based on the control signal from the scan driver block SB.