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Small square 40 mm server fan black frame silver rotor four wires PWM

Fans

Fans Delta TFB0412EHN 4028 12V 0.87A 4cm PWM Server Fan

SKU CH-S5E6-WAK44

40 mm PWM server fan with double-ball bearings running at 12 V and 0.87 A for high-airflow cooling

  • PWM control matches speed to thermal load
  • Double ball bearing extends operational lifespan
  • 12 V 0.87 A input delivers strong airflow
  • 4028 RPM provides focused cooling for dense builds

Delta TFB0412EHN 4028 PWM server fan

The Delta TFB0412EHN is a 40 mm by 28 mm PWM case fan designed for server and workstation chassis. It runs on a 12 V supply and draws 0.87 A through a double ball bearing motor. The four-wire PWM interface allows precise speed control tied to system thermal sensors. This unit is sold new and targets integrators who need reliable high-static-pressure airflow in tight 1U or blade enclosures.

Suits dense rack builds; not for quiet desktop use

The fan suits builders populating high-density rackmount servers, blade chassis or GPU compute nodes where maximum static pressure matters more than acoustic comfort. Its double ball bearings tolerate continuous high-RPM operation and elevated ambient temperatures. Buyers who need a silent or low-vibration fan for a home office tower, HTPC or noise-sensitive workstation should look at larger, lower-RPM alternatives with fluid-dynamic bearings. Systems lacking a 4-pin PWM header cannot use the speed-control function.

Highlights

  • PWM control matches speed to thermal load
  • Double ball bearing extends operational lifespan
  • 12 V 0.87 A input delivers strong airflow
  • 4028 RPM provides focused cooling for dense builds

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the Delta TFB0412EHN 4028 12V .87A 4cm PWM fan and what step is often missed?

Mount the 40 mm frame with four screws, connect the 4-pin PWM header to the motherboard, and ensure the PWM control wire is seated so the motherboard can regulate speed automatically.

What maintenance will the Delta TFB0412EHN 4028 12V .87A 4cm double ball bearing fan need later?

The double ball bearings are sealed for life; periodically clean dust from the blades and heatsink fins with compressed air to maintain the rated airflow.

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