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Small black 25mm square fan with ball bearing

OEM Industries

OEM Industries AD0205MB-k50 25mm fan 5V 0.09A ball bearing

SKU CH-JVAE-3H9WY

A 25 mm ball-bearing fan delivering 1–5 CFM at 1,600–1,999 rpm with a 25–30 dBA noise level

  • ColorBlack
  • TypeFan only
  • Fan Size25mm
  • Bearing TypeBall
  • LEDNo
  • Compact 25 mm frame fits tight chassis spaces
  • Ball bearing ensures reliable long-life operation
  • 5 V 0.09 A draw keeps power use low
  • 1600 – 1999 rpm delivers 1 – 5 cfm airflow
  • Quiet 25 – 30 dBA noise level for silent builds

Ultra-thin 25mm DC fan

The OEM Industries AD0205MB-k50 is a compact square cooler measuring 25mm across and designed for tight spaces. It runs on a 5V supply drawing only 0.09A through a simple two-wire connection. The ball-bearing motor targets embedded systems, small-form-factor PCs and replacement cooling where height clearance is minimal.

Drop-in two-wire installation

Mounting uses the standard four-corner holes on the 25mm frame so it fits existing cut-outs without adapters. The two-wire lead carries power only, so speed control or monitoring requires an external circuit. Polarity must be observed on the 5V line; reversing the wires will prevent the fan from spinning.

Low airflow for spot cooling

At 1600–1999 rpm the fan delivers 1–5 cfm with a noise level of 25–30 dBA, suitable for chipset heatsinks, VRM arrays or single-board computers. It cannot move enough air for a modern CPU socket under sustained load, so builders needing higher static pressure or greater volume should choose a larger cooler.

Highlights

  • Compact 25 mm frame fits tight chassis spaces
  • Ball bearing ensures reliable long-life operation
  • 5 V 0.09 A draw keeps power use low
  • 1600 – 1999 rpm delivers 1 – 5 cfm airflow
  • Quiet 25 – 30 dBA noise level for silent builds

Specifications

ModelAD0205MB-k50
ColorBlack
TypeFan only
Fan Size25mm
Bearing TypeBall
LEDNo

Questions about this item

How can I confirm the AD0205MB-k50 is spinning correctly after installation?

Listen for quiet operation between 25 and 30 dBA and verify the RPM reads between 1600 and 1999 in your monitoring software.

What comes with the AD0205MB-k50 and what must I source separately?

The package includes the 25 mm ball-bearing fan with a two-wire 5 V 0.09 A lead; mounting screws and any PWM controller are not supplied.

Which version of the AD0205MB-k50 should I choose for my build?

Only the single 5 V 0.09 A ball-bearing model in black is offered; select it when you need a 25 mm ultra-thin cooler with 1 to 5 CFM airflow.

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