400 mm fan ile 420 mm arasındaki fark, boyutlarıdır. 420 mm fan, 400 mm fandan daha büyüktür 13.
Fan boyutları, genellikle 80 mm, 92 mm, 120 mm, 140 mm, 180 mm ve 200 mm gibi değerlerle ifade edilir 13.
Daha büyük fanlar, aynı hacimdeki havayı daha düşük bir devir hızında hareket ettirebilir ve bu sayede daha sessiz çalışır 4. Ancak, ek ağırlık ve aerodinamik sürtünme nedeniyle güç tüketimi artabilir 4.
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fan, 400 mm fandan daha büyüktür [```1```](https://forums.tomshardware.com/faq/different-water-cooling-fan-radiator-sizes-an-in-depth-look.1500747/)[```3```](https://voltcave.com/case-fan-sizes/). \n\nFan boyutları, genellikle 80 mm, 92 mm, 120 mm, 140 mm, 180 mm ve 200 mm gibi değerlerle ifade edilir [```1```](https://forums.tomshardware.com/faq/different-water-cooling-fan-radiator-sizes-an-in-depth-look.1500747/)[```3```](https://voltcave.com/case-fan-sizes/). \n\nDaha büyük fanlar, aynı hacimdeki havayı daha düşük bir devir hızında hareket ettirebilir ve bu sayede daha sessiz çalışır [```4```](https://www.technopat.net/2025/05/18/pc-kasa-fani-alirken-dikkat-edilmesi-gerekenler/). Ancak, ek ağırlık ve aerodinamik sürtünme nedeniyle güç tüketimi artabilir [```4```](https://www.technopat.net/2025/05/18/pc-kasa-fani-alirken-dikkat-edilmesi-gerekenler/).","sources":[{"sourceId":1,"url":"https://www.overclockers.co.uk/air-cooling/fans/fans-by-size","title":"Overclockers | Air-Cooling | Fans By Size","shownUrl":"https://www.overclockers.co.uk/air-cooling/fans/fans-by-size"},{"sourceId":2,"url":"https://graphicscardhub.com/best-420mm-aio/","title":"Best 420Mm AIO for Intel and AMD CPU [Budget Models]","shownUrl":"https://graphicscardhub.com/best-420mm-aio/"},{"sourceId":3,"url":"https://voltcave.com/case-fan-sizes/","title":"PC Case Fan Sizes Explained – Voltcave","shownUrl":"https://voltcave.com/case-fan-sizes/"},{"sourceId":4,"url":"https://forums.tomshardware.com/faq/different-water-cooling-fan-radiator-sizes-an-in-depth-look.1500747/","title":"How To - Different Water Cooling Fan & Radiator 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