Manufacturer: Noctua. Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctuas AAO frame, the NF-A4x20 is a highly optimised, premium-quality quiet fan in size 40x20mm. The PWM version sports Noctuas custom-designed NE-FD1
IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise Adaptor as well as an OmniJoin Adaptor Set for easy connection to proprietary fan headers. Its superb running smoothness, reference-class SSO2 bearing and Noctuas trusted premium quality make it an elite choice for the highest demands.Highlights:
* Frame technology: Advanced Acoustic Optimisation (AAO)
* RPM: 5000.
* CFM: 5.5.
* dBA: 14.9.
* Fan width: 40mm.
* Fan depth: 20mm.
* Bearing type: SSO2
* Connector: 4Pin.
* Warranty: 6 years.
Do you want to know more? Check out Noctuas product introduction page