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Black 40 by 56 millimetre NIDEC server fan with ball bearing

OEM Industries

OEM Industries R40W12BS2AC-07 40×56 mm 12 V 1.54 A CPU cooler

SKU CH-ZTZR-KSNGT

A 40 × 56 mm server fan with ball bearing, running at 12 V and 1.54 A for compact CPU cooling

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • Bearing TypeBall
  • LEDNo
  • High airflow from 12 V 1.54 A motor
  • Compact 40 × 56 mm frame fits tight server bays
  • Ball bearing ensures long operational life
  • NIDEC 4056 engineering for reliable cooling
  • Black finish with no LED keeps builds clean

Compact 40 × 56 mm Server Fan

The OEM Industries R40W12BS2AC-07 is a 40 mm square fan built for tight server and workstation chassis. It targets system integrators and technicians who need a direct replacement for a 4056 form-factor cooler in 1U or blade environments.

Ball-Bearing 12 V 1.54 A Operation

The unit runs on a 12 V supply drawing 1.54 A and uses a ball-bearing motor for continuous duty cycles. No LED lighting is fitted, keeping the airflow path clean and the acoustic profile predictable in densely packed racks.

Drop-In 4056 Mounting Pattern

The cooler matches the standard 40 × 56 mm screw spacing so it fits existing brackets without modification. Its black frame and fan-only design leave full clearance for adjacent memory modules, riser cards or storage cages.

Highlights

  • High airflow from 12 V 1.54 A motor
  • Compact 40 × 56 mm frame fits tight server bays
  • Ball bearing ensures long operational life
  • NIDEC 4056 engineering for reliable cooling
  • Black finish with no LED keeps builds clean

Specifications

ModelR40W12BS2AC-07
ColorBlack
TypeFan only
Fan Size40mm
Bearing TypeBall
LEDNo

Questions about this item

How do I install the R40W12BS2AC-07 fan and what step is often missed?

Mount the 40 mm fan using the four corner holes, connect the 12 V power lead, and verify the ball bearing spins freely — the step often missed is confirming the airflow direction arrow points toward the heatsink.

What maintenance will the R40W12BS2AC-07 need later?

The ball bearing is sealed; no lubrication is required. Periodically blow dust from the blades and frame with compressed air to keep airflow at spec.

What limit appears first when the R40W12BS2AC-07 runs continuously at 12 V 1.54 A?

Sustained operation at the rated 1.54 A draw makes motor heating the first limit; ensure case ventilation keeps ambient temperature within the fan's operating range.

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