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Small black 40mm square cooling fan with two wires

OEM Industries

OEM Industries FD124028MB-P 40mm 2 Ball Fan 12V 0.20A 7000RPM 13CFM 34.5dBA 2-Wire

SKU CH-ZHTD-J35RQ

40 mm dual-ball-bearing fan delivers 13 CFM at 7000 RPM with 34.5 dBA noise

  • Fan size40 mm
  • Bearing design2 Ball
  • Power input connector2 Wires
  • Product colorBlack
  • Product typeFan only
  • Dual ball bearings reduce wear for longer service life
  • 7000 RPM delivers 13 CFM airflow for compact cooling
  • 5 dBA keeps noise low in tight builds
  • 12 V, 0.20 A draws minimal power from the header
  • 40 mm frame fits space-constrained sockets and enclosures

Compact 40mm Cooling Fan

The OEM Industries FD124028MB-P is a 40mm square frame fan designed for tight clearance cooling in small form factor systems or as a replacement on legacy CPU heatsinks. Its two ball bearing construction targets builders who need reliable long term operation in confined spaces. The two wire power lead suits basic voltage control without PWM signalling.

Two Wire Voltage Control Limits

Speed varies only with supply voltage so the fan runs at a fixed 7000 RPM when fed the full 12 V and 0.20 A rating. There is no fourth wire for motherboard PWM regulation or tachometer feedback so automatic fan curves and speed monitoring are unavailable. Builders who need closed loop speed control or variable noise profiles cannot use this model.

13 CFM Airflow at 34.5 dBA

At the rated 7000 RPM the fan moves 13 CFM while producing 34.5 dBA which suits low profile heatsinks or chipset coolers with modest thermal loads. It will not provide enough static pressure or volume for larger tower coolers or high TDP processors. Systems requiring substantially more airflow must use a larger frame or higher performance design.

How it compares

Measured against everything we stock in CPU Coolers & Heatsink Fans, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 60% of the 1,559 comparable items (median $19.99).
Fan size 40 mm
Lower than about 90% of the 812 comparable items (median 80 mm).

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Specifications

Product
Model nameFD124028 MB-P
Product colorBlack
Product typeFan only
Power
Power input connector2 Wires
Size & build
Fan size40 mm
Bearing design2 Ball
More details
LED lightingNo

Questions about this item

Is the FD124028MB-P the only 40mm two-ball-bearing fan offered in this series?

The FD124028MB-P is the single model presented; it ships as a 40 mm frame with two-ball bearings, 12 V 0.20 A input and a two-wire power lead.

What does the 7000 RPM rating actually deliver inside a case?

At 7000 RPM the fan moves 13 CFM of air while producing 34.5 dBA, giving strong airflow for tight 40 mm mounts such as small-form-factor CPU coolers or GPU shrouds.

How does the two-wire connector limit speed control?

The two-wire lead supplies fixed 12 V power only, so the fan runs constantly at 7000 RPM; voltage regulation or PWM control requires a three- or four-wire header instead.

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