The Noiseblocker NB-BlackSilentFan XL2 120mmx25mm Ultra Quiet Fan, manufactured by Noiseblocker, Germany's quietest fan manufacturer, the BlackSilentFan series features extraordinary life spans and near silent operation. Using the NB-Longlife advanced sleeve bearing and matched with the NB-EKA drive, the BlackSilentFan series runs more than double the life of normal sleeve bearings in operates so quietly you'll forget they are running. These fans are silent performance at high value!

• Original Noiseblocker Quality
• Quiet, Long Life Operation
• Highest Durability
• Inexpensive & Cool
• Rubber Mounting Screws Included

Dimensions:	120x120x25 mm
Weight:	120 g
Rated voltage:	12-13.2 V DC
Starting Voltage:	6 V DC
Input Power:	3.24 W
Input Current:	0.27 A (max)
Rated speed:	1500 ±10%
Dielectric Strength:	5 mA (max)
Air Pressure:	1.044 mm-H2O
Airflow:	58 CFM 98 m^3/h
Noise Level:	21 dB/A
MTBF (25°C):	80,000 hr.
Connection:	Standard 3 Pin
Warranty:	3 Years

11-26-2011
Reviewer: sabar (20)
Excellent fans! They are dead silent at any RPM and they push through low density rads as if they are not even there. A perfect combination with hardware labs SR1 series. Note that the fan blades look more like a very dark blue or soft purple color when they are against a black background.

03-08-2011
Reviewer: W7RKD (2)
No matter what RPM I set these at there is no motor noise what so ever and the fan its self pushes the right CFMs for my case and is ultra quiet as they say, worth every dollar spent!