Noiseblocker is the number one specialist for quiet fans. To achieve this, the company relies on maximum quality with low and high manufacturing tolerances, technological know-how and advanced German engineering. In addition, the Noiseblocker prides itself on quoting technical specifications at realistic values.The mounting system of the fan is very refined and minimizes vibration transfer. Here, a large silicon frame provides a reduced volume. Even the cables have been thought about, Noiseblocker has come up with something special. 20cm and 50cm sleeved cables are included in the package meaning you have maximum control over cable management. Connection is via 3-pin.Specification:- Dimensions: 80 x 80 x 25 mm- Volume: 3.8 to 18.1 dB (A)- Speed: 500 - 2000 r / min- Airflow: 18 - 54 m / h- Starting voltage: 5 V- Operating voltage: 5 - 13.2 V- Power consumption: 0.81 W- Connector: 3-pin (20 +50 cm cable)- Life expectancy: 120,000 hours- Warranty: 6 Years