I think that card, from the research I've done on the eMate, is the ROM card, and the blank slot is where the upgrade goes. Another thing I found out that I need to address in one of my follow-up articles on the eMate is if you get a memory upgrade that NewerTech made, one may have to resolder the chips on the card as the soldering job on these boards was horrid at best. If you happen to get a WiFi card, or any other PCMCIA card, be sure it's a 5 volt card and not 3.3. The eMate will see a 3.3 card, but will automatically think it's 5 volts which will fry the card and possibly the eMate.

Hope you enjoy your eMate! I know I am!