"PWM (Pulse Width Modulation) technologyBall bearing mountedCopper coreThe flagship of CHIEFTEC's fans offers everything that distinguishes a modern fan.
The high-quality ball bearing allows the 120-mm rotor to be turned almost silently and the revolutionary 4-pin PWM technology ensures optimum running performance, depending on the temperature, via the motherboard BIOS.
Weight: 138.7 gMTBF: 70,000 hoursSpeed: 1650 RPMVolume: 29 - 32 dBA Air flow: 58 - 61 CFMAir pressure: 1.3 - 1.6 mm/H2ODimensions (W x H x D): 120 x 120 x 25mmConnections: 4-pin PWM/MolexScope of delivery: fan, set of screws"