Cooler Master MasterLiquid PL240 FLUX CPU Cooler
 

"... The Cooler Master MasterLiquid PL240 Flux is the CPU cooler you really want, if you want to keep your RGB hidden below the surface. The black transparent lens not only looks great when the lights are off, but also looks great when the lights are on ... the pump lets the light through without any issues! "

https://www.funkykit.com/reviews/coo...cooler-review/