I recently bought a used Atmos 2 from ebay as well as a download cable (seperate auction). After receiving the download cable and trying to figure out how to use it (not much luck fitting it into the PC port) I contacted the seller and he said it strapped to the top of the PDC and utilized the IR port for downloads. Can anyone help me out and tell me if it is for the Atmos 2 or some other Aeris PDC. Thanks for your help!!