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Small black plastic 4 cm axial fan with four wires

Fans

Fans FFB0412SHN 4028 4CM Double Ball 12V PWM Case Fan

SKU CH-QFA5-NG15Y

A 4 cm axial case fan with double ball bearings, 12 V PWM control and UL 94V-0 plastic frame

  • 12V PWM speed control for precise cooling
  • Double ball bearings for long-life reliability
  • UL 94V-0 plastic frame meets flammability standard
  • UL 1007 AWG 24 lead wires ensure safe connection
  • Lightweight 32g design eases installation in tight spaces

4 cm Double Ball PWM Fan

This 40 mm axial case fan uses double ball bearings and a 12 V PWM connection for speed control. It is built for compact enclosures that need directed airflow in tight spaces.

Replaces sleeve-bearing 40 mm fans

The ball-bearing design extends service life compared with sleeve alternatives and tolerates higher operating temperatures. The upgrade is worthwhile when the existing fan develops noise or fails under continuous duty.

Moves air through dense heatsinks or tight chassis

The axial layout pushes air straight through the frame, suiting CPU coolers, GPU shrouds or small-form-factor cases. It runs out of headroom when static pressure demands exceed what a 40 mm frame can generate.

How it compares

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

Price $31.99
Pricier than about 78% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What are the lead-wire gauge and connector details for the FFB0412SHN 4028?

The fan uses UL 1007 AWG #24 wires with a red positive lead and a black negative lead for the 12 V PWM connection.

How do I install this 40 mm axial fan in a case and what step is often missed?

Mount it with four screws through the frame holes, then plug the 4-pin PWM header into the motherboard so speed control works.

When will the double ball bearings need replacement?

The ball-bearing design is rated for long life; expect replacement only after years of continuous operation.

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