80mm case fan for system cooling.   Easy to install anti-vibration Silicone Pins.   RC56 Connector for operation in Silent Mode.           Dimensions 80(W) x 80(L) x 25(H) mm Weight 75.5g Speed 1700rpm ± 15% - 2800rpm ± 10% Noise Level 20.0dBA ± 15 % - 32.0dBA ± 10 % Bearing Type Sleeve   - NP FAN(ZM-F1 Plus) - Noiseless Connector (RC56) - Anti-Vibration Silicone Pins for fan installation (ZM-SP1)   Zalman affixes a Computer Noise Prevention System (CNPS) mark to all components used for noiseless computers.   The specifications of any product may change without prior notice to improve the performance thereof.