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Small black square 40 by 28 mm 12 V 4 pin ball bearing fan

Zyvpee

Zyvpee W40S12BS4A5-07 T03A 40x28mm 12V 4 Pin Ball Bearing Case Fan

SKU CH-S1D4-F5RYK

A 40 by 28 millimetre server cooling fan with a ball bearing, 12 volt four-pin connector and 0.73 amp draw

  • Bearing designBall
  • Power input connector4 Pin
  • LED lightingNon-LED
  • Product typeCase Fan
  • Product colorBlack
  • Key featuresServer Coolingg
  • Compact 40×28 mm size fits tight server chassis
  • Ball bearing ensures long life in continuous duty
  • 4-pin PWM connector enables precise speed control
  • 12 V 0.73 A draw balances airflow with low power
  • Non-LED black frame keeps rack lighting clean

Compact 40 mm Server Fan

The Zyvpee W40S12BS4A5-07 is a 40 x 28 mm case fan built for server cooling. It runs on 12 V and draws 0.73 A through a 4 pin connector. The ball bearing design targets continuous operation in tight chassis.

Suits Dense Server Builds

This unit fits builders who need a 4028 form factor for rack or blade systems. It is not for buyers who want RGB lighting or larger diameter fans. Buyers who need a different voltage or connector type should look elsewhere.

Simple Four Pin Install

The 4 pin plug connects directly to a standard motherboard or fan controller header. Ensure the 40 x 28 mm mounting holes align with your chassis. Misaligned screw holes are the most common fitment issue.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 60% of the 8,339 comparable items (median $19.99).

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Specifications

Product
Brand nameZyvpee
Product lineW40S12BS4A5-07
Model nameW40S12BS4A5-07
Product typeCase Fan
Product colorBlack
Power
Power input connector4 Pin
Size & build
Bearing designBall
Product dimensions40 × 28 mm
More details
LED lightingNon-LED

Questions about this item

What 4-pin header and voltage does my motherboard or fan controller need to supply for this 12V 0.73A fan?

Connect it to a standard 12 V four-pin PWM header rated for at least 0.73 A; the fan draws that current at full speed.

Will the 28 mm frame depth fit in the same mounting holes as my existing 40 mm fans?

The fan is 40 mm square and 28 mm deep; match those dimensions and the four corner screw holes against your current bracket before swapping.

How can I confirm the ball bearing and PWM control are operating correctly after installation?

Spin-up should be smooth and quiet; in BIOS or fan software the reported RPM must follow the PWM duty-cycle curve you set.

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