[NTLK] Empty slot in an eMate?

Under the eMate battery door there's two slots for what look (to me)
like flash memory cards. My eMate has one filled and the other empty.
 What goes in it and where can I get one? :)

(FWIW, I disassembled the eMate this weekend to do a hinge inspection;
they were in perfect condition although completely dry. I lubricated
them with some light non-conducting oil and it's now perfect. I also
used the opportunity to test my "cold heat" soldering iron and I'm
pleased as punch with it--I suck at soldering, but this thing made it
easy.)

-- Tim

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