SAMA SF300 3Packs PC Case Fans 120mm 4PIN PWM Interface with Fan Hub Double Ball Bearing High Airflow Premium Quiet Computer Case Fans Black Case Fans - Newegg.com
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Noctua NF-F12 PWM 120mm Fan MTBF rating of more than 150.000 hours - Allneeds Computers
Top Motor Fan 40mm x 10mm Ball Bearing Medium RPM 4 pin
Fans, Service life, MTBF - SEPA Europe GmbH
Power Supply|BE QUIET|550 Watts|Peak Power 600 Watts|Efficiency 80 PLU – W-Warehouse
Top Motor Fan 92mm x 38mm Double Ball Bearing High RPM 3 pin