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Small black 40mm case fan with four-pin connector

SXDOOL

SXDOOL TFB0412EHN 40mm 12V 0.87A 4-Pin case fan

SKU CH-SKB8-KDJAX MPN TFB0412EHN

40 mm case fan with 4-pin PWM control, dual ball bearings, 25 to 30 CFM airflow at over 7000 RPM and 50 dBA noise

  • Fan size40 mm
  • Bearing design2 Ball
  • Rotational speed>7,000 RPM
  • Airflow rate25-30 CFM
  • Operating noise> 50 dBA
  • Power input connector4 Pin
  • 4-pin PWM control enables precise speed regulation
  • Double ball bearings rated for 10.0000 hours continuous operation
  • 40 mm frame delivers 25-30 CFM airflow
  • 12 V 0.87 A power draw suits compact builds
  • 15000 RPM maximum speed for high-pressure cooling

Compact 40 mm server-grade fan

The SXDOOL TFB0412EHN is a 40 mm case fan built for tight server and workstation chassis. Double ball bearings and a 12 V, 0.87 A PWM motor target 1U racks, CPU radiators and power-supply retrofits where space is at a premium. Buyers needing larger airflow volumes or silent desktop operation should look elsewhere.

Thermals, noise and power

At 15 000 RPM the fan moves 26.03 CFM while drawing 0.87 A from a 12 V rail. Measured acoustics reach 58.00 dB(A), reflecting the high-speed profile required for dense heat loads. Rated continuous running time is 10 000 hours under load.

Build integration

The 4-pin PWM connector plugs directly into standard motherboard headers for speed control. Physical footprint is 40×40×28 mm with no LEDs, keeping cable routing simple in cramped enclosures. The supplier offers free re-termination to 2-wire, 3-pin or 2-pin interfaces on request.

How it compares

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

Price $10.99
Cheaper than about 90% 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 typeCase Fan
Product colorBlack
Performance
Rotational speed>7,000 RPM
Airflow rate25-30 CFM
Power
Power input connector4 Pin
Size & build
Fan size40 mm
Bearing design2 Ball
Environment & compliance
Operating noise> 50 dBA
More details
LED lightingNo

Questions about this item

How do I install the 40mm 4-pin fan and what step is often missed?

Mount the 40 by 40 by 28 millimetre frame with four screws, plug the 4-pin connector into a PWM header, and enable PWM control in BIOS so the 15000 RPM maximum speed can be reached.

What maintenance or replacement will the double ball bearing fan need later?

The double ball bearings are rated maintenance-free for 10.0000 hours of continuous running; after that interval plan to replace the fan.

What limit appears first during sustained use at full speed?

At 15000 RPM the noise reaches 58.00 dB(A) and airflow is 26.03 CFM, so acoustic level is the first practical limit.

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