Quote:
Originally Posted by nimblem
My PocketPro has the SIM card as well. It simply holds more books than the unit can hold on it's own.
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I think what you are referring to is the SD card slot. The SIM card is different, and (if present) is in the battery compartment. A SIM card is usually used for mobile phones, but the Wolf format can support DRM using a SIM card installed in the reader to supply the unique id. This is only used in China, see
Wiki: WOLF.