The launch of Google Chromecast started a trend of putting lightweight but very functional computing systems on a device the size of an HDMI dongle. We've seen the likes of Dell's Wyse Cloud Connect, Intel's HDMI Compute, and more recently, the Acer Chromebit and Microsoft's Windows 8.1 PC stick from Lucoms. These small computers, however, because of their compact size, run the risk of running hot. Japanese outfit Mouse Computer thinks it has the solution to that common problem, which involves nothing hi-tech or sophisticated. All it needs is a fan.