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Small black square 40 mm frame axial fan with four wires and connector

Fans

Fans Delta 4020 12V 0.15A EFB0412HHD Case Fan

SKU CH-DRCG-3PHKT

A 40 mm double ball-bearing axial fan delivering 9.43 CFM at 8200 RPM with a 30.5 dBA noise level and a 4-pin 2.5 mm connector

  • Double ball bearing ensures long 10.0000 hour service life
  • 8200 RPM delivers 9.43 CFM airflow for effective cooling
  • 5 dBA noise level keeps operation quiet
  • 12 V 0.15 A draws only 1.8 W power
  • 40×40×20 mm compact size fits tight spaces

Delta 4020 12V 0.15A EFB0412HHD Case Fan

This 40 mm axial fan is built for network switches and compact servers that need focused airflow in a shallow chassis. It suits system integrators maintaining H3C 3600 or 5600 equipment or any build where a 4020 form factor is required.

Capacity and headroom

At 8200 RPM the fan delivers 9.43 CFM and 1.8 W of cooling power, enough for dense heat exchangers in 1 U appliances. The 30.5 dBA noise level and 12 V 0.15 A draw mean it will not overwhelm a small enclosure, but the 20 mm depth limits use to slim bays.

Build quality and connectors

A double ball bearing rated for 10.0000 hours at 25 °C and 45–85 % humidity provides maintenance-free operation. The 4-pin 2.5 mm terminal on a 20 cm lead connects directly to switch fan headers and supports stop-alarm monitoring for proactive failure detection.

How it compares

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

Price $33.99
Pricier than about 81% 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

Will the 40 mm frame and 2.5 mm 4-pin terminal fit the fan header on my older H3C 3600 or 5600 switch?

The fan uses a 40×40×20 mm frame with a 2.5 mm 4-pin terminal and 20 cm lead, matching the original Delta EFB0412HHD specification for those switches.

How can I confirm the fan is running correctly once installed?

The double ball bearing spins at 8200 RPM, delivering 9.43 CFM at 30.5 dBA; the 4-pin connector reports speed so the switch can verify operation and trigger the stop alarm if the rotor stalls.

Does the package include mounting screws or a PWM controller, or must I buy them separately?

Only the fan with its 20 cm 4-pin lead is supplied; mounting hardware and any external speed controller are not included.

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