the thing with these cases with keyboards is that the people who make do not tell you that you need an adptor to go on the end of the usb plugin there seen in the picture, this is why you couldnt figure it out because you just didnt know. Look into my auctions here I am currently selling some of these adptors to go with this keyboard usb. Im not trying to advertise but I noticed you said you couldnt figure it out so im telling you the answer to your not knowing how to figure it out, because you are the one who is stupid it is the makers of these keyboard cases.
Good auction, I need one of these, but BTW it will not work with an iPad as this is usb and ipads only have bluetooth keyboards. If you have an android phone or tablet with a micro usb port, this will work even without an adapter. To use it on a computer, I don't know about that...