Computer case Fan 14 cm 1800 RPM 104.62 cfm 2.8 mmH2O Pulse-width modulation (PWM) support 140 x 140 x 25 mm 193 g White 3 pc(s) The Phanteks M25 fans build upon the award winning T30 fan to keep next gen hardware cool with high airflow cooling performance. The M25 fan blades are specifically optimized to perform the best with fine mesh/dust filters, heatsinks and radiators with reduced RPM levels. This optimization keeps unwanted bearing noises at a minimum while also leaving plenty of cooling headroom, when necessary, by going full speed.By sharing some of its design with the T30, the M25 stands out by delivering higher airflow through heatsinks and radiators with lower RPM levels with exceptional value. The wide RPM range, up to 2000 RPM, can be precisely controlled through PWM to ensure the M25 is excellent for both quiet and high-end gaming systems. Performance Mean time between failures (MTBF) 30000 h Fan static pressure 2.8 mmH2O Quantity per pack 3 pc(s) Pulse-width modulation