Alphacool 24829 ES 80 mm 800-6,000 rpm Fan (80 x 80 x 25 mm) - Two Ball Bearing - PWM Fan Powerful

The Alphacool ES fans have been specially developed for use in servers and workstations and, unlike usual, do not offer a 2 or 3-pin DC power connection, but a 4-pin PWM control. Instead of using the usual 2 cables or the 3-pin connector, Alphacool now also uses a modern 4-pin PWM connector for enterprise fans, which is supported by more and more server mainboards. The 4-pin PWM connector always receives the full voltage and is controlled by pulse width modulation. Double ball bearing. Unlike classic plain bearings, the Alphacool ES fans have a double ball bearing, for increased life under full load. Double ball bearings are generally considered the highest quality bearings in terms of durability and quality. This also ensures a high smoothness in terms of minimal vibrations. Protection circuits All Enterprise fans from Alphacool have multiple protection circuits. If the fans are blocked, they try to restart at reduced speed after a few seconds. Thanks to the gentle start, including the emergency start function, the fan can be blocked for up to 72 hours without suffering damage. Technical data: L x W x H: 80 x 80 x 25 mm. Speed: 1000 - 6000 rpm. Fan bearing: double ball bearing. Connection: 4-pin PWM cable length: 30 cm. Operating voltage: 7 - 14 V. Start voltage min. : 7 V power consumption: 0.66 - 0.85 A (7.92 - 10.2 W) static pressure: 14.29 mm H2O air flow: 130.83 m³/h volume max: 50 dB(A) MTBF: 70,000h