#p pwm pst value pack

ARCTIC P8 PWM - 80 mm Case Fan with PWM, Pressure-optimised, Very Quiet Motor, Computer, Fan Speed: 200-3000 RPM - Black

ARCTIC P12 PWM PST Value Pack - 120 mm Case Fan, Five Pack, PWM Sharing Technology , Pressure-optimised, Very quiet motor, Computer, 200-1800 RPM - Black/Black