Low-Noise Adaptor (L.N.A.) 4-Pin Y-Cable 30cm Extension Cable 4 Vibration-Compensators 4 Fan Screws Premium quiet fan 60x60x25 mm 12V 4-pin PWM max. 3000 RPM max. 19.3 dB(A) >150000 h MTTF Award-winning 60x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance Ideal replacement for noisy or broken 12V 6cm fans in DVRs NAS network and storage devices 3D printers etc. 4-pin PWM version for automatic speed control via 4-pin PWM fan headers broad rpm speed range (2100rpm max. with supplied Low-Noise Adaptor) Includes anti-vibration mounts fan screws Low-Noise Adaptor extension cable and y-cable for running two PWM fans on the same header.