Brad; First a note about the MC75.  There are actually two products, the MC75 and the MC75A.  Is it possible that the device with the additional Flash Memory was an MC75A instead?  MSP should report the A in the model number if it is. Second, there are likely a number of ways to distinguish devices with different amounts of RAM and Flash.  Since these are Windows Mobile devices, RAM is likely reflected in the amount of Program Memory, which can be collected via the Data Collection Metric TotalPhysicalMemory.  The amount of Flash is trickier, since Flash is used for a number of different purposes, including the OS, Storage Memory, Application partition, etc.  The easiest way to get Flash size information is likely to use the GetConfigData Control Module, and configure it using a Control.GetConfigData Settings Object.  This will ultimately call the EMDK function RCM_GetConfigurationData, passing a code you supply and returning whatever that API returns for that code.  Some of the codes are predefined.  MPA version will likely help distinghish an MC75 from an MC75A.  Flash Vendor, Flash Size, and RAM Size may all be useful. Since the values returned by RCM_GetConfigurationData, and hence by the GetConfigData Control Module, are very device-specific, the best way to use them is to request these value to be collected from a population of devices and then examine the data to see what it can tell you about the similarities and differences amongst those devices.  In most cases, this type of information can be used to classify devices based on key differences that matter to you. Allan