Featuring shock absorbing pad design, this cooling fan provides protection and shock absorption for the fans and reduces the resonance noise between the fans and the chassis to ensure a quiet environment that allows you to concentrate on your work or game without interference. This cooling fan, which can achieve high rotation speed to bring large air flow to quickly cool down the computer to prevent it from overheat and maximize the lifespan of your computer, is very practical. Made of high quality ABS, it is lightweight, wear-resistant and durable to use. The length of this product is 12cm and width is 12cm. It is compatible for most desktop computers. Item Name: Case Cooling Fan Material: ABS Rated Voltage: DC 12V Speed: 1800RPM 10% Bearing Type: Hydraulic Bearing Fan Air Volume: Max 78.08CFM Rated Current: 0.25a Noise: Max32.2dB Input Power: 4.2+/- 10% Fan Pressure: Max2.06mm/H20 Insulation Type: Class A Power Supply Interface: 4Pin Features: Quick Cooling, Large Air Volume, Low Noise Size Details: L: 12cm/4.72", W: 12cm/4.72" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Case Cooling Fan