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Black 40x40x20mm square case fan with 4-pin connector

Zyvpee

Zyvpee W40S12BS4A5-57 40x40x20mm 12V .73A 4-pin 2 ball case fan

SKU CH-6VTE-A4NG5

A 40×40×20 mm dual-ball-bearing case fan with a 4-pin PWM connector running at 12 V and 0.73 A for server cooling

  • Bearing design2 Ball
  • Power input connector4 Pin
  • LED lightingNon-LED
  • Product typeCase Fan
  • Compatible withCase
  • Product colorBlack
  • Dual-ball bearing extends service life
  • 12 V, .73 A delivers strong airflow
  • Four-pin connector enables PWM speed control
  • Compact 40 x 40 x 20 mm fits tight bays
  • Nidec 4028 motor built for server duty

Compact 40 mm server fan

The Zyvpee W40S12BS4A5-57 is a 40 mm square case fan designed for tight server and workstation chassis. Its two-ball bearing and 4-pin PWM connector suit builds that need reliable airflow in a 40 x 40 x 20 mm footprint.

Sustained 12 V operation

Running continuously at 12 V and 0.73 A, the dual-ball bearing maintains consistent speed without the wear seen in sleeve designs. The 4-pin interface allows the motherboard to adjust duty cycle under prolonged thermal load.

Verify 40 mm mount and 4-pin header

Confirm your chassis has 40 mm mounting holes and that the board provides a 4-pin fan header for PWM control. Builds limited to 3-pin headers or larger fan frames cannot use this unit.

How it compares

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

Price $21.99
Pricier than about 55% of the 8,339 comparable items (median $19.99).

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Specifications

Product
Product lineW40S12BS4A5-57
Model nameW40S12BS4A5-57
Product typeCase Fan
Product colorBlack
Power
Power input connector4 Pin
Size & build
Bearing design2 Ball
Product dimensions40 × 40 × 20 mm
Compatibility
Compatible withCase
More details
LED lightingNon-LED

Questions about this item

How loud is the 40×40×20 mm 12 V 0.73 A 2-ball fan when it runs continuously in a server chassis?

The fan uses a dual ball bearing and a 4-pin PWM connector, so speed can be lowered via the motherboard to reduce noise during extended operation.

What must my motherboard or controller provide to run this 4-pin 12 V 0.73 A case fan?

A standard 4-pin PWM header supplying 12 V and at least 0.73 A per fan is required; the connector carries power, ground, tachometer and PWM control signals.

Will this 40 mm 12 V 0.73 A 2-ball fan fit alongside older 4028-size coolers that use 3-pin headers?

The physical 40×40×20 mm footprint matches the 4028 form factor, and the 4-pin plug works in a 3-pin header at fixed 12 V, though PWM speed control will be unavailable.

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