Fan Size: 80mm Bearing Type: Ever Lubricate RPM: 2000 ±10% RPM Noise Level: Dimensions: Overall Dimension: 130 x 101 x 15mm DC Fan Dimension: 80 x 80 x 10mm Features: Air flow suck in at one way and expel from two directions. It can help to discharge heat of hard disk driver and make the running more smoothly. Designed with unique and fancy bullet train shape. Easy to Install for all users Parts: 1 year limited Labor: 1 year limited