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Two black 40 by 56 millimetre fans with three pin connectors

OEM Industries

OEM Industries AS04012UB565300 40x56mm 12V 3-Pin Fan CPU Cooler

SKU CH-PBFW-NCPMZ

Two 40 × 56 mm ball-bearing fans with 3-pin 12 V connectors for server or CPU cooling

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • Bearing TypeBall
  • Power Connector3 Pins * 2
  • LEDNo
  • Compact 40×56 mm footprint fits tight server chassis
  • Dual 3-pin connectors simplify redundant fan wiring
  • Ball-bearing design extends operating life in continuous use
  • 12 V 1 A rating delivers strong airflow for inverter cooling
  • New condition ensures reliable performance out of the box

Compact 40 mm Server Fan

The ADDA JARO AS04012UB565300 is a 40 x 56 mm cooling fan built for server and compact system use. It runs on 12 V power and uses a ball bearing for long-term reliability. The unit is sold as a fan-only cooler without integrated LEDs. Two fans are included in the package.

Three-Pin Speed Reporting

Each fan connects via a standard three-pin header that supplies power and returns a tachometer signal. The motherboard or fan controller can monitor speed but cannot vary voltage automatically. Pulse-width modulation control is not available on this connector. Current draw is rated at 1 A per fan.

Header and Clearance Check

Verify that your board provides two separate three-pin fan headers or a suitable splitter cable. Confirm the 40 mm mounting pattern matches the intended heatsink or chassis location. Ensure the 56 mm depth fits within the available space without interfering with nearby components or cables.

Points forts

  • Compact 40×56 mm footprint fits tight server chassis
  • Dual 3-pin connectors simplify redundant fan wiring
  • Ball-bearing design extends operating life in continuous use
  • 12 V 1 A rating delivers strong airflow for inverter cooling
  • New condition ensures reliable performance out of the box

Caractéristiques

ModelAS04012UB565300
ColorBlack
TypeFan only
Fan Size40mm
Bearing TypeBall
Power Connector3 Pins * 2
LEDNo

Questions sur cet article

Should I pick the single-fan or the dual-fan version of the AS04012UB565300?

The listing supplies two identical 40mm ball-bearing fans, each with a 3-pin 12V connector, so you receive a dual-fan kit in one package.

What does the 12V 1A rating mean when the fan is installed in a server chassis?

Each fan draws up to 1 amp at 12 volts, giving a maximum of 12 watts per unit; the 3-pin header supplies constant voltage so speed stays steady under load.

How does the 3-pin connector limit control compared with a 4-pin PWM header?

A 3-pin header provides fixed 12V power and a tachometer signal, so the fan runs at full speed unless the motherboard reduces voltage, whereas PWM would allow precise duty-cycle control.

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