A system for dispensing ammunition magazines. In one embodiment, memory controller logic applies one of a first trim profile or a second trim profile to a flash memory storage device based at least partially on a comparison of a threshold temperature value and a sensed temperature of the flash memory storage device. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. The electronic module contains the components necessary to play the multimedia, including one or more audio output devices and optionally a video screen. The guide plate includes a main part formed in a meandering shape, and end portions which are joined to opposite sides of the main part and are attached to guide plate attaching portions arranged on opposite sides of the housing. Traffic usage is detected and based on channel utilization relative to capacity, spectrum aggregation is chosen over MIMO under certain conditions.