Corsair CO-9050072-WW Dual Light, Series ML120 PRO RGB, Case Fan, Compatibility Case, Fan Size: 120mm, Bearing Magnetic Levitation Bearing, RPM 600 - 1500 RPM +/- 10%, Air Flow 55.4 CFM, Noise Level 20.4 dBA, Power Connector 4 Pin, Black, LED RGB. The CO-9050074-WW ML140 PRO RGB PWM fan combines unrivaled performance and low noise operation, by utilizing magnetic levitation bearing technology, with vibrant RGB lighting controlled in CORSAIR iCUE software.