This PC fan has 7 pieces of big blades which provide strong cooling capacity. Hydraulic structure, full copper coil and double seaming workmanship, all exquisite detail for bringing user pleasant experience.Features:Hydraulic structure, ultra quiet.Full copper coil, more durable.Double seaming workmanship, avoid deformation.True heat pipe structure, better thermal cycling.7 pieces of big blades provide strong cooling capacity.2000r / m to 2500r / m high speed rotation, more effectively cooling PC.Specifications:Bearing type: Hydraulic bearingSupport CPU: For AMD, for IntelSpeed: 2000r / mNoise: 20DBService life: 30.000 hoursVoltage: 12VMaterial: AluminumColor: OrangeItem size: 12.0 * 9.1 * 7.5cm / 4.7 * 3.6 * 3.0 (L * W * H)Item weight: 321.0g / 11.4ozTotal size: 14.0 *12.2 * 10.5cm / 5.5 * 4.8 * 4.1in (L * W * H)Total weight: 377.0g / 13.3ozPackage list:1 * Computer Fan1 * Bracket