Noctua AAO Frame Design SSO2 Bearing Quiet Fan(NF-A9 PWM)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Bearing Type: SSO2 (Self-stabilizing Oil) Blade: A-Series (with Flow Acceleration Channels) Frame: AAO (Advanced Acoustic Optimisation) </span></li><li><span class="a-list-item"> Airflow: 78，9 m³/h， Static Pressure: 2.28 mmH2O， Acoustical Noise: 22，8 dB(A)， Rotational Speed: 2000 rpm (+/- 10%) </span></li><li><span class="a-list-item"> Airflow with L.N.A. 62，6 m³/h， Static Pressure with L.N.A.: 1.53 mmH2O， Acoustical Noise with L.N.A.: 16，3 dB(A)， Rotational Speed with L.N.A.: 1550 rpm (+/- 10%) </span></li><li><span class="a-list-item"> Connector Type: 4-pin PWM， Minimum Rotational Speed with PWM: 400 rpm (+/- 20%) </span></li><li><span class="a-list-item"> Max. Input Current: 0.1 A， Max. Input Power: 1.2 W， Voltage: 12 V </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51ejJj%2BCW8L.jpg" noproxy>