Bold whisper-quiet, solid cooling, world class /bold Shadow Wings 2 fans offer whisper-quiet operation as well as reliable cooling at low speed. It is therefore particularly recommended for use in very quiet PC systems.BulletList bullet Low-noise operation even at maximum speed /bullet Bullet Fan blades with air-flow-optimized surface structure provide for whisper-quiet operation with solid cooling /bullet Bullet Anti-vibration installation system minimizes the transmission of vibrations /bullet Bullet Rubberized fan frame supports vibration reduction /bullet Bullet High-quality rifle bearing technology enables a long service life of 80,000 hours /bullet Bullet Safe and easy installation with push pins /bullet Bullet PWM-controlled speed via the mainboard (only PWM models) /bullet Bullet Product design, design and quality control in Germany /bullet Shadow Wings 2 fans are the perfect choice for all, who attach the highest importance to noise reduction in your PC. Fans are the perfect c