An apparatus for warming consumable liquids and for controllably maintaining the elevated temperature of the liquid that includes a housing having an upper portion, a tapered lower portion and a side wall defining a tapered receiving chamber for receiving the container containing the consumable liquid. The metal for the Schottky layer and the semiconductor material for the drift layer are selected to provide a low barrier height Schottky junction between the drift layer and the Schottky layer. The positioning member has a plurality of positioning portions, a second fixing portion and a plurality of guiding slots. A real time streaming service class specific traffic queue is metered to determine whether its bit rate is below or over its guaranteed bit rate requirement, based on which at least one first scheduling weight for the metered real time streaming service class specific traffic queue is determined. Each of the plurality of headers that includes valid data may be represented in the random access memory. The test logic, which is couplet to the connector for communication with the device under test, transfers test commands and test data to (tic device under test.