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Small square notebook cooling fan with black plastic frame and visible blades

Fans

Fans KDP0505HA 5V 0.40A BA31-00134A case fan

SKU CH-J1J9-YJAQZ

5V 0.40A notebook case fan for targeted component cooling

  • 5 V operation matches notebook power rails
  • 40 A draw keeps thermal load low
  • Original BA31-00134A part ensures correct fit
  • KDP0505HA model targets compatible chassis airflow

Compact notebook cooling fan

The Fans KDP0505HA is a 5 V replacement fan designed for notebook chassis where space is limited. It draws 0.40 A and fits the BA31-00134A mounting pattern used in several slim devices. Buyers who need a desktop case fan or a higher-voltage server blower should look elsewhere.

Steady low-speed airflow under load

At a constant 5 V supply the motor maintains its rated current without thermal throttling during extended use. Bearing noise stays consistent because the rotor speed does not ramp up as internal temperatures rise. The slim frame leaves no room for PWM control or speed reporting.

How it compares

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

Price $13.99
Cheaper than about 70% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How much heat does the KDP0505HA produce when running all day at 5V 0.40A?

At 5 V and 0.40 A the fan draws about 2 watts, so it adds very little heat to a notebook chassis during continuous use.

What connector must the laptop already have for the BA31-00134A to plug in?

The BA31-00134A uses the original notebook fan header; the laptop must provide the matching 5 V PWM connector for it to work.

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