was looking for some new quiet fans amazon has it for 31.76 + prime over $49 but limits to one per person found this @ mightyape.com.au and ordered 2 postage was $5.90 when order grouped together other sites have it listed for $35-42+post
note: this is the slim 15mm fans not the standard 25mm fans
FAN Specification
Size 120×120×15 mm
Mounting hole spacing 105×105 mm
Connector 4-pin PWM
Cable length 20cm + 30cm NA-EC1 extension cable
Bearing SSO2
Blade geometry A-Series with Flow Acceleration Channels
Frame technology AAO (Advanced Acoustic Optimisation)
Rotational speed (+/- 10%) 1850 RPM
Rotational speed with L.N.A. (+/- 10%) 1400 RPM
Min. rotational speed (PWM, +/-20%) 450 RPM
Airflow 94,2 m³/h
Airflow with L.N.A. 70,8 m³/h
Acoustical noise 23,9 dB(A)
Acoustical noise with L.N.A. 16,8 dB(A)
Static pressure 1,53 mm H₂O
Static pressure with L.N.A. 0,9 mm H₂O
Max. input power 1,56 W
Max. input current 0,13 A
Operating voltage 12 V
Voltage PWM signal 5 V
MTTF > 150.000 h
Scope of delivery
Low-Noise Adaptor (L.N.A.)
4-pin y-cable
30cm extension cable
NA-AV3 anti-vibration mounts
Fan screws
Warranty 6 years