Your card seems to be a f5d7000, not a f5d7000i. It is indeed a wifi card as opposed to any other sort of wireless modem. A Google search for f5d7000 belkin and linux indicates that people have made at least some versions of this card work under Linux, although Belkin themsleves don't seem to offer a Linux driver for it (Many manufacturers use the same chipset and the first article I fould inducated how to make it work under Ubuntu with a driver from Dell). I expect that with some effort you might get it working under Knoppix, but consider my previous warning that I can't even get a wifi card that did work under 4.02 and that I know Knoppix already includes the driver for to work under 5.x, so this may not be simple.