These days our cases are filled with fans to get rid of all that hot air that is produced by our CPU's, our GPU's, our hard drives as well as everything else we put into the cases. To measure temperatures we either use software or led-displays that we place in the 3.5" or the 5 ¼" spaces in our cases. But what if we could see the temperature of the air right away on the fans? This is where this quite funny fan from Sharkoon fits in. The Rainbow Fan TC projects the temperature onto the spinning fan-blade making it possible to monitor the case-temp by just looking at the fan.



Link: Bjorn3d