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Small black square 40mm case fan with three-pin connector and short cable

SXDOOL

SXDOOL KDE1204PKVX 40mm 12V 3-pin case fan

SKU CH-3K91-58649

40 mm case fan with magnetic bearing delivering 10.8 CFM at 8200 RPM and 27.5 dBA noise

  • Fan size40 mm
  • Rotational speed>7,000 RPM
  • Airflow rate10-15 CFM
  • Operating noise25–30 dBA
  • Power input connector3 Pin
  • LED lightingNon-LED
  • 40 mm footprint fits tight chassis spaces
  • 8200 RPM delivers 10.8 CFM of focused airflow
  • 5 dBA keeps acoustic profile low
  • Magnetic bearing rated for 10.0000 hours at 25 °C
  • 3-pin 12 V connector with 8 cm lead

Compact 40 mm cooling for tight builds

The SXDOOL KDE1204PKVX is a 40 mm case fan built for small-form-factor enclosures, rack-mount gear or embedded boards where a standard 120 mm unit simply will not fit. It draws 1.4 W at 12 V and connects through a three-pin header.

Magnetic-bearing motor rated for 10 000 hours

The double ball bearing design runs at 8 200 RPM and delivers 10.8 CFM at a measured 27.5 dBA, so the single figure that decides fit is the 40 × 40 × 20 mm footprint — anything larger blocks adjacent slots or cables.

Short 8 cm lead keeps cabling tidy

The 8 cm cable reaches nearby headers without excess slack, and the bare three-pin connector works with any 12 V fan header that supplies speed sensing. No lighting, no controller and no adapters are included.

How it compares

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

Price $7.99
Cheaper than about 93% 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 speed>7,000 RPM
Airflow rate10-15 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 does the 8200 RPM speed translate to airflow inside a case?

The fan moves 10.8 CFM at 8200 RPM, delivering focused cooling for tight spaces like small-form-factor builds or component spot-cooling.

What does the 3-pin connector allow for speed control?

The 3-pin connector supports voltage-based speed regulation, so the fan can run quieter at lower voltages or at full 12 V for maximum airflow.

Will the 40×40×20 mm frame fit my mounting points?

It uses standard 40 mm square mounting holes with a 20 mm thickness, matching typical 4020 fan cut-outs on cases, heatsinks and GPU shrouds.

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