https://wccftech.com/silentiumpc-announces-new-sigma-pro-corona-120mm-fans-feature-rgb/

SilentiumPC has announced its new Sigma Pro Corona RGB 120 Kit, like all other recent fans that have been released in the past year or so has fans that will show off the RGB revolution that has enslaved us all. The kit includes three 120 mm Sigma Pro Corona RGB fans and a tiny yet powerful Nano RGB controller. Built-in inside the ring-shaped casing there are 18 bright RGB LEDs that enable the user to choose from any color to create stunning lighting effects. Three methods of controlling these effects are available.

First, manually, using the included Nano RGB controller which has several pre-defined modes, from constant lightning, through slow, gradual color change and breathing to aggressive strobe. Additional button speeds or slows down each of the effects and can also turn the illumination off completely. Next option is using the Aurora Sync controller available in SilentiumPC Armis TG RGB cases.