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Black 40mm square case fan with double ball bearing and three-pin connector

SXDOOL

SXDOOL 1604KL-04W-B59 40mm 12V 0.1A 5500-5999 RPM case fan

SKU CH-PFC0-3KE6V MPN 1604KL-04W-B59

A 40 mm 12 V case fan spinning at 5500-5999 RPM with 6.0 CFM airflow and 25-30 dBA noise, using a double-ball bearing rated for 180000 hours MTTF

  • Fan size40 mm
  • Rotational speed5500-5,999 RPM
  • Airflow rate5-10 CFM
  • Operating noise25–30 dBA
  • Power input connector3 Pin
  • LED lightingNon-LED
  • Compact 40 mm fan fits tight chassis spaces
  • Double ball bearing rated for 180000 hours MTTF
  • 5500-5999 RPM delivers 6.0 CFM airflow
  • 25-30 dBA keeps system noise low
  • 3-pin 12 V 0.1 A connector with 20 cm lead

Compact 40mm Cooling Fan

The SXDOOL 1604KL-04W-B59 is a 40mm case fan designed for tight spaces in PCs or small-form-factor builds. It runs on 12V power and draws 0.1A through a standard 3-pin connector. The black, non-LED frame suits systems where subtle airflow is preferred over lighting.

Double Ball Bearing with Silent IC

The fan uses a double ball bearing paired with a specially designed silent IC to reduce motor noise. This construction targets a long working life rated at 180,000 hours MTTF. The bearing choice aims to maintain consistent speed and lower acoustic output over extended use.

Fixed Speed and Short Lead

Operating between 5500 and 5999 RPM, the fan delivers 6.0 CFM at 26 dBA within stated tolerances. The 3-pin connector provides power and tachometer feedback but no PWM control, so speed varies only with voltage changes. A 20 cm cable length limits placement to nearby headers or requires an extension for larger cases.

How it compares

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

Price $9.99
Cheaper than about 91% of the 8,339 comparable items (median $19.99).
Fan size 40 mm
Lower than about 90% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Product colorBlack
Performance
Rotational speed5500-5,999 RPM
Airflow rate5-10 CFM
Power
Power input connector3 Pin
Size & build
Fan size40 mm
Environment & compliance
Operating noise25–30 dBA
More details
LED lightingNon-LED

Questions about this item

How long will the double ball bearing last before it needs replacement?

The manufacturer rates the bearing at 180,000 hours MTTF, so under continuous operation it should run for many years before wear requires a swap.

What limits airflow when the fan runs at full speed for long periods?

The 6.0 CFM maximum air volume at 5500-5999 RPM is the hard ceiling; sustained loads cannot push more air through the 40 mm frame.

How much noise and heat does the fan produce during all-day use?

Noise stays between 25 and 30 dBA while drawing only 0.1 A at 12 V, so heat output remains minimal even after hours of continuous running.

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