Noctua NF-A12x25 G2 PWM chromax.black vs NF-A4x20 Case Fan Comparison

Noctua NF-A12x25 G2 PWM chromax.black and Noctua NF-A4x20 are both case fans with the same Airflow Direction (Regular), Fans Quantity (1) and LED Color (None). The main differences are in Fan Size and Airflow.

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Noctua NF-A12x25 G2 PWM chromax.black	Noctua NF-A4x20
Prices (Change region) In Stock $34.95 Last updated 42 minutes ago.	Prices (Change region) In Stock $15.95 Last updated 37 minutes ago. In Stock + $7.10 Shipping $15.95
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Brand Noctua	Brand noctua
Model NF-A12x25 G2 PWM chromax.black	Model NF-A4X20 PWM
Release Date 📅 May 2026	Release Date -
* 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 120 mm	Fan Size 40 mm
Color Black	Color Brown
Airflow 0 - 63.15 CFM	Airflow 4.9 - 5.5 CFM
Airflow Direction Regular	Airflow Direction Regular
Fan RPM -	Fan RPM 1200 - 5000 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