Amazon.com: 12cm CPU Cooling Fan,12V DC 6PIN 1200RPM,45CFM Large Air Volume,19.5dBA Silent,RGB Multi‑Color CPU Cooling Fan Computer Case Cooler Ventilator (Transparent) : Electronics
Akyga AW-12A-BK 12cm-es ventilátor - Riser.hu
12038 12v High Speed Two Ball Bearing 12cm Case Cooling System Fan For Computer Btc Mining Cabinet Server 120mm Ventilator Kit - Fans & Cooling - AliExpress
Solar Panel30W 12V Panel Powered Fan 12cm Mini Ventilator Exhaust For Dog Chicken House Greenhouse RV Car Charger - AliExpress