Maybe you should just get yourself an external hard drive (or large thumb drive) and call it a day... I've never heard of a data transfer cable, though it doesn't seem too far fetched (two USB devices, one for each side, that connect to each other vs connecting the computers). Though, if that were the case, i'd think something would show up in My Computer, because I imagine it'd have something to install. Maybe search the manufacturer's site or youtube for a guide on the product.