Fan controllers come in all shapes and sizes. Be that a simple knob rheostat all the way up to the fully automatic digital unit such as the Thermaltake Hardcano 12. Thinking outside the box, Thermaltake has gone in an entirely new direction with their newest fan controller, dubbed the XTunner. You have wireless mice, keyboards, NICs and printers so why not a rheobus? Thermaltake's press release cites the XTunner's extra "n" in its name, is for innovation. To come up with an idea like a radio controlled rheobus, I have to agree.