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Small square 35 mm case fan with black frame and transparent blades

SXDOOL

SXDOOL AP3505LB-J70 35 mm 4.2 CFM case fan

SKU CH-54MA-S589A MPN AP3505LB-J70

A 35 mm case fan delivering 4.2 CFM airflow with a Hypro bearing

  • Fan size35 mm
  • Product typeCPU Cooler Fan
  • Compact 35 mm frame fits tight builds
  • 2 CFM airflow cools small heatsinks efficiently
  • Hypro bearing reduces friction for quieter operation
  • 5 V DC power suits low-voltage controller headers

Compact 35 mm 5 V case fan

This 35 x 35 x 8 mm fan runs on 5 V and delivers 4.2 CFM through a Hypro bearing. It fits tight CPU cooler mounts and small-form-factor chassis where larger fans cannot be installed. The AP3505LB-J70 model is supplied new and ready for direct replacement.

Upgrade from noisy or failed 35 mm fans

The jump is worth it when the original fan has worn bearings or cannot maintain airflow in a confined heatsink. Buyers who need higher static pressure, PWM speed control or a larger frame size will not find those features here.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 60% of the 8,339 comparable items (median $19.99).
Fan size 35 mm
Lower than about 93% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Product typeCPU Cooler Fan
Size & build
Fan size35 mm

Questions about this item

Does the 35 mm square frame with 8 mm thickness fit my 35 mm fan mount?

Yes, the fan measures 35 x 35 x 8 mm, so it matches any standard 35 mm mounting pattern with 8 mm clearance.

How do I connect the two-wire lead to a 5 V header, and what mistake should I avoid?

Plug the red wire to the 5 V pin and the black wire to ground; the common error is reversing the polarity, which prevents the fan from spinning.

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