NB-eLoop®-X Series 120mm The world’s leading fan technology meets sophisticated LED lighting effects. The series was developed for the highest demands of professional and dedicated PC designers and modders. The latest top technology: energy-saving hub lighting, programmable ARGB LEDs, accent lighting design (developed especially for PC modding), bionic eLoop technology, semi-passive option, enhanced static pressure for water cooling and more ... The LED technology is compatible with commercially available mainboard platforms and ARGB controllers.