Light Wings 140mm PWM high-speed offers impressive illumination for a vibrant unique look, strong performance & quiet operation with efficient cooling. ARGB lighting on front & rear Multiple colors & modes for an individual look thanks to 20 LEDs Nine silence-optimized fan blades for high pressure & low noise-generating turbulences Remarkable performance-to-noise ratio with 31d B (A) at 2, 200rpm Long life rifle-bearing gives an operating lifetime of 60, 000 hours Three-year manufacturer’s warranty Impressive Lighting Lots of illumination possibilities Light Wings 140mm PWM high-speed offers ARGB lighting at the front & rear. The subtly lit ring at the back combined with the bright one at the front make for a magnificent appearance from every angle. 20 ARGB LEDs give you many opportunities to individualize your PC build. For Radiators & Heatsinks Fan blades optimized for high pressure With a remarkably high air pressure of up to 2.3mm/H2O, Light Wings 140mm PWM high-speed is the best choice for water-cooled & air-cooled systems alike. The nine airflow-optimized fan blades provide enough air pressure to make this fan perfect, even in demanding configurations. Quiet Operation Acclaimed be quiet! low noise level A highly optimized impeller achieves the silent operation be quiet! is famous for. With a noise level of 31d B (A) at maximum fan speed, it proves that instead of being a replacement the lighting is an addon to silent & very powerful operation. All features combine to make Light Wings 140mm PWM high-speed the fan of choice for silent show cases & gaming systems alike. Variable Fan Speed Function Adjusts the fan speed & associated noise level Pulse Width Modulation (PWM) allows compatible 4-pin controllers, including those built into many motherboards, to intelligently vary the speed & thus the noise level of the fan. With PWM the system can ramp up the cooling when it’s needed, or operate in maximum quiet mode when it’s not.