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Small square black plastic 40mm cooling fan with four wires and a four-pin connector

Haywards

Haywards 40mm 12V 4-pin laptop cooling fan DBTB0428B2G

SKU CH-AASC-8V485

A 40×40×28 mm 12 V four-pin fan with double ball bearings, PWM control and speeds up to 18000 RPM for HP Pavilion 16-A gaming laptops

  • TypeOther
  • PWM intelligent temperature control adjusts speed automatically
  • Double ball bearing rated for 70000 hours life
  • 40×40×28 mm frame fits tight laptop bays
  • 12 V operation with 7.0-13.4 V range
  • 18000 RPM delivers 19.4 CFM airflow

Replacement Fan for HP Pavilion 16-A 16X Gaming

This 40 mm cooling fan is built as a direct replacement for the HP Pavilion 16-A 16X Gaming laptop using part number L77560-001. It fits the TPN-Q241 chassis and connects through the existing 4-pin header so the system retains full PWM control. Buyers who need a different voltage, connector layout or physical footprint will not be able to use this unit.

12 V 4-Pin PWM Interface with 1 A Current Draw

The fan operates on a 12 V supply with a 1 A rating, drawing up to 12 W through its 4-wire PWM interface. The motherboard can regulate speed between 7.0 V and 13.4 V, allowing intelligent temperature control and speed reporting. Systems limited to 5 V or lacking a 4-pin header cannot drive this fan correctly.

Double Ball Bearing Rated for 70 000 Hours at 18

Under continuous load the double ball bearing sustains speeds up to 18 000 RPM with an airflow of 19.4 CFM and a noise level of 54 dB. The bearing design targets a 70 000 hour service life at that operating point. Users who prioritise silent operation over maximum thermal headroom should consider a lower-speed alternative.

Highlights

  • PWM intelligent temperature control adjusts speed automatically
  • Double ball bearing rated for 70000 hours life
  • 40×40×28 mm frame fits tight laptop bays
  • 12 V operation with 7.0-13.4 V range
  • 18000 RPM delivers 19.4 CFM airflow

Specifications

TypeOther

Questions about this item

What does 18000 RPM mean for airflow in my laptop?

At up to 18000 RPM the fan moves 19.4 CFM of air through a 40×40×28 mm frame, so it can shift a lot of heat quickly but will be audible at 54 dB.

What does the 4-pin PWM interface actually control?

The 4-wire PWM connection lets the motherboard vary speed between 7.0 V and 13.4 V, giving intelligent temperature control and a speed-measurement signal back to the system.

Will the 40×40×28 mm size and screw pattern fit my HP Pavilion 16-A?

The 40 mm square frame with 28 mm thickness matches the original DFS2000055K0T cooler used in HP Pavilion 16-A and 16X Gaming models (TPN-Q241, L77560-001).

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