Noctua NF-A4x20 vs NF-A20 PWM Case Fan Comparison

Noctua NF-A4x20 and Noctua NF-A20 PWM are both case fans with the same Airflow Direction (Regular), Fans Quantity (1) and LED Color (None). The main differences are in Fan Size, Airflow and Fan RPM.

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Noctua NF-A4x20	Noctua NF-A20 PWM
Prices (Change region) In Stock $15.95 Last updated 49 minutes ago. In Stock + $7.10 Shipping $15.95	Prices (Change region) In Stock $35.95 Last updated 49 minutes ago. In Stock + $11.20 Shipping $35.95
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Brand noctua	Brand noctua
Model NF-A4X20 PWM	Model NF-A20 PWM
Release Date -	Release Date 📅 November 2017
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Fan Size 40 mm	Fan Size 200 mm
Color Brown	Color Brown
Airflow 4.9 - 5.5 CFM	Airflow 59.3 - 86.5 CFM
Airflow Direction Regular	Airflow Direction Regular
Fan RPM 1200 - 5000 RPM	Fan RPM 350 - 800 RPM
Fans Quantity 1	Fans Quantity 1
LED Color None	LED Color None
PWM Connector Yes	PWM Connector Yes
Fan controller included No	Fan controller included No