The Pure Wings 2 140mm PWM fans bring famous be quiet! silent cooling to entry level computing, yet are also appropriate for gaming and multimedia systems. <br><br>Combining outstanding reliability, quiet operation, and a great price-for-performance ratio, Pure Wings 2 140mm PWM is unique in its class. They are the ultimate reason to put well-known be quiet! silent cooling in your PC.<br><br><b>VERY QUIET OPERATION</b><br>Achieves a great price-for-performance ratio<br>The Pure Wings 2 140mm PWM fan operates at only 19.8dB(A) even at maximum speed.
The perfect choice for silent home and office PCs as well as gaming and multimedia systems.<br><br><b>SILENCE-OPTIMIZED FAN BLADES</b><br>For even better cooling<br>Thanks to its surface-optimized fan blades the airflow is enhanced, noise-generating turbulences are minimized and the air pressure is increased. This feature is the key to effective cooling.<br><br><b>VARIABLE FAN SPEED FUNCTION</b><br>Varies the fan speed and noise level of the This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-003-2836, indicating validated use in U.S. government and defense logistics supply chains.
| diameter | 0.343 INCHES NOMINAL IN |
| material | STEEL BAND |
| tip_type | TORQUE SET CROSS |
| overall_width | 0.687 INCHES NOMINAL IN |
| overall_length | 1.250 INCHES NOMINAL IN |
| drive_shank_type | HEXAGON |
| style_designator | TWO PIECE |
| features_provided | MANUAL TOOL |
| material_thickness | 0.250 INCHES NOMINAL IN |
| loop_inside_diameter | 1.750 INCHES NOMINAL IN |
| tip_size_designation | 1/4 |
| shank_width_across_wrench_flats | 0.312 INCHES NOMINAL IN |
| NSN | 5310-00-003-2836 |