The present invention relates to a method and an apparatus for providing enhanced indirect evaporative cooling of air, water, fuel, or other fluids while controlling the humidity. The legend presents the assignment of chords to the symbols found on the standard computer keyboard. The DMA engine is configured to receive the data from the first bus, receive a contiguous scatter-gather list from a processing device via a second port, configure the data according to the contiguous scatter-gather list, and provide the configured data to the processing device through the second port.