1. A caching method, comprising: receiving a host command from a host; extracting command information from the host command; determining an Input/Output (I/O) action to be taken in connection with the host command; identifying a particular memory module from among a plurality of memory modules to execute the I/O action; generating an accelerated I/O message for transmission to the particular memory module, the accelerated I/O message comprising at least one Internal Scatter Gather List (ISGL) having a plurality of Scatter Gather Extents (SGEs) that enable the particular memory module to execute the I/O action solely based on the at least one ISGL; and transmitting the accelerated I/O message to the particular memory module.