In essence, you can fully customize it to your needs and in the end have a fan with "specifications" no one has ever heard of. It all depends on your taste. The other option involves lengthening the wires. Simple stripping and twisting (or soldering for the overachiever) will do. You can then cut out a tiny hole somewhere in the case to feed the knob through. Now you have a new rheostat! All in all this is another tinker toy: not something you should strongly consider, but nice to have around.