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Small black 4 cm square cooling fan with cable

DBTLAP

DBTLAP Laptop Cooling Fan For AVC RD330 RD340 RD530 RD540 RD640 RD630 12V 1.4A 4CM Server Fan

SKU CH-Y4WM-QE5XF

Replacement 12 V 1.4 A server fan fits AVC RD330, RD340, RD530, RD540, RD630 and RD640 models

  • Accessory categoryCooler
  • Replaces AVC RD330 RD340 RD530 RD540 RD630 RD640 models
  • 12V 1.4A power rating matches original server specifications
  • 4cm compact form factor fits existing mounting points
  • Each unit tested before shipping for reliable operation
  • Verify part number 31051456 DB04056B12U PS01 for exact compatibility

Replacement fan for AVC RD series laptops

This 12 V 1.4 A server fan fits AVC RD330 RD340 RD530 RD540 RD630 RD640 models and matches part numbers 31051456 DB04056B12U PS01. It is aimed at owners of those specific laptops who need a direct drop-in cooler. Buyers with different chassis or proprietary mounting points will not be able to use it.

4 cm frame tested before shipping

The 4 cm square frame uses the original AVC screw pattern so it aligns with the existing heatsink brackets without modification. Each unit is powered up and spun up at the factory to confirm 100 % compatibility before it leaves. The package contains only the fan; no thermal paste, cables or mounting hardware are included.

12 V 1.4 A power envelope limits upgrade headroom

The fixed 12 V 1.4 A rating means the fan draws a set current that the laptop's fan header must supply; systems with lower-rated headers cannot run it safely. There is no PWM or voltage control documented, so speed cannot be adjusted in software. Users needing variable speed or lower acoustic profiles should look elsewhere.

How it compares

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

Price $10.99
Cheaper than about 85% of the 6,190 comparable items (median $20.99).

Specifications

Product
Accessory categoryCooler

Questions about this item

Which part numbers does the 12V 1.4A 4CM fan replace?

It replaces AVC RD330, RD340, RD530, RD540, RD630 and RD640, plus 31051456, DB04056B12U and PS01.

What physical space does the 4CM server fan require?

The 4CM form factor fits the mounting holes and airflow path of the listed AVC models; verify the photos match your original unit before fitting.

How is the replacement fan installed and what step is often missed?

Disconnect power, swap the old fan for the new one matching the connector orientation, then confirm the 12V 1.4A rating matches the system label before powering on.

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