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Noctua NF-A14x25 G2 PWM

140 mm, 25 mm-thick PWM case/radiator fan in Noctua’s second-generation A-series. This record covers the standard NF-A14x25 G2 PWM model, not the speed-offset Sx2-PP set or low-speed variant.

Original local schematic of Noctua NF-A14x25 G2 PWM; not a product photograph or dimensional drawing
ORIGINAL LOCAL SCHEMATIC // NOT TO SCALE OR A PRODUCT PHOTOGRAPH

IDENTIFICATION: Match the complete model name, suffix, article number, bundle, revision, and host manual to the physical label before installation. Similar product names and variants may use different wiring or dimensions.

Specifications

Catalog subcategoryCase and radiator fans
Exact modelNF-A14x25 G2 PWM (standard single-fan model)
Frame and thickness140 × 140 × 25 mm
Speed / controlUp to 1,500 rpm; 4-pin PWM; 12 V DC
Electrical ratingMaximum input power 1.56 W; maximum current 0.13 A
Mount / host fit140 mm fan mounts; radiator, case, screw length, grille, filter, and adjacent component clearance are host-specific.

Compatibility, installation & service

  • Use only a chassis or radiator with a 140 mm mounting pattern and enough depth for a 25 mm frame; verify screw length and blade clearance.
  • Connect to a 4-pin fan header or a PWM controller and keep combined fan current within the header/controller limit.
  • Match the standard 1,500 rpm model to its label; G2 low-speed and Sx2-PP variants have different speed behavior.

Service notes

Clean the frame and blades with power disconnected; hold the rotor still while dusting. Inspect the cable and bearing for damage or abnormal noise; do not open the sealed bearing.

Manufacturer references

  1. Noctua — NF-A14x25 G2 PWMManufacturer specifications and exact G2 model variants.
  2. Noctua — Compatibility centreManufacturer support and compatibility reference.

Verify fit, wiring, and ratings against the manufacturer document for the exact unit and host. This catalog record is an identification aid, not a compatibility guarantee.