Correct me if I'm wrong, but if I wanted to buy just one for testing this out so I don't want to buy a  full blown separate power supply or anything yet. So I suppose if I get this AC adapter http://www.ebay.in/itm/12V-5A-POWER-ADAPTER-SMPS-POWER-SUPPLY-FOR-LED-AND-OTHER-EQUIPMENTS-/181343625932?pt=LH_DefaultDomain_203&hash=item2a38ec22cc   and connect the Gridseed device to my PC via my mobile's data cable (micro USB) and installed the specific CGminer version, I could hash away at 300KH?

Or this http://www.ebay.in/itm/Universal-Notebook-Charger-Adapter-Power-Supply-for-Laptop-12V-to-24V-96W-/301109513618?pt=IN_Laptop_Desktop_Accessories&hash=item461b868d92