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Small black 40mm square fan 28mm thick two wire power connector ball bearing no LED

OEM Industries

OEM Industries FD124028EB-P 40mm 28mm 12V .78A CPU cooler

SKU CH-5QTS-0HMZA

40 mm ball-bearing fan delivers 12 V, 0.78 A airflow for 1U server cases

  • Fan size40 mm
  • Bearing designBall
  • Power input connector2 Wires
  • Product colorBlack
  • Product typeFan only
  • 40 mm fan fits 1U server chassis
  • 28 mm slim profile clears low-clearance layouts
  • 12 V .78 A delivers strong airflow for dense builds
  • Ball bearing ensures long life in continuous operation
  • Two-wire power connector simplifies installation

Compact 40 mm Server Fan

This 40 mm by 28 mm axial fan is built for 1U server chassis where vertical space is measured in millimetres. It runs on 12 V and draws .78 A, delivering focused airflow directly over low-profile CPU heatsinks. The black frame and ball-bearing motor suit continuous operation in rack-mounted equipment. System integrators maintaining dense compute nodes will find the form factor matches legacy 1U layouts.

12 V .78 A Power Draw

The single decisive figure is the 12 V .78 A rating, which determines whether the fan can be powered from a standard motherboard header or requires a dedicated supply rail. At .78 A the current exceeds many 3-pin header limits, so verify the board's per-header budget before connecting. No PWM or tachometer wire is present, so speed control and monitoring are not available through the two-wire lead.

Two-Wire Ball-Bearing Install

Installation is a four-screw mount into the standard 40 mm hole pattern found on most 1U heatsinks. The ball bearing reduces start-up friction but transmits more vibration than sleeve types; use the supplied rubber grommets if resonance appears. The bare two-wire lead has no keyed connector, so polarity must be observed manually — reverse wiring will stall the motor. No LED or extra wiring simplifies cable routing in tight trays.

How it compares

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

Price $19.99
Typical for this category: the median of 1,559 items is $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 nameFD124028EB-P
Product colorBlack
Product typeFan only
Power
Power input connector2 Wires
Size & build
Fan size40 mm
Bearing designBall
More details
LED lightingNo

Questions about this item

What does the 12 V .78 A rating mean once the fan is installed in a 1U server?

At 12 V the fan draws 0.78 A, a modest current that fits easily within a 1U chassis power envelope.

How does the 2-wire power connector affect speed control in practice?

The 2-wire connector supplies constant 12 V power, so the fan runs at a fixed speed with no PWM or voltage regulation.

Will the 40 mm by 28 mm frame mount in a standard 1U server bracket?

The 40 mm square frame and 28 mm thickness match the typical 1U server fan mounting pattern.

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