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Small black square CPU cooler 40 by 40 by 20 mm three pin

Zyvpee

Zyvpee EFB0405MD W310 40x40x20mm 3-pin CPU cooler

SKU CH-JT1W-NQ9MC

A 40 mm square DC cooler with ball bearing and 3-pin connector runs at 5 V 0.24 A

  • Bearing designBall
  • Power input connector3 Pin
  • LED lightingNon-LED
  • Product typeCase Fan
  • Compatible withCPU Cooler
  • Product colorBlack
  • Compact 40 × 40 × 20 mm footprint fits tight builds
  • Ball bearing ensures long-life, quiet operation
  • 5 V 0.24 A draw keeps power use low
  • Three-pin connector enables speed monitoring
  • Square DC cooler design targets CPU hotspots directly

Compact 40 mm CPU cooler

The Zyvpee EFB0405MD W310 is a 40 by 40 by 20 millimetre square DC cooler designed for tight CPU cooler mounts. It suits builders working with small-form-factor boards or proprietary chassis where a full-size tower will not fit. The three-pin connector provides simple voltage control on most headers.

Ball-bearing thermals and low power

A ball bearing keeps friction low for consistent rotation and longer service life. The fan draws 0.24 amps at five volts, so heat output stays minimal and acoustic levels remain subdued during typical workloads. No LEDs mean no extra light bleed in dark cases.

Three-pin integration and clearance

The 3-pin power connector plugs directly into standard motherboard headers without adapters. At 20 millimetres thick the unit leaves room for adjacent memory slots or voltage-regulator heatsinks. It is not suited for high-TDP sockets that demand larger heatsink surfaces or higher static pressure.

How it compares

Measured against everything we stock in CPU Coolers & Heatsink Fans, at today’s prices. Recalculated every night.

Price $22.99
Pricier than about 64% of the 1,559 comparable items (median $19.99).

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Specifications

Product
Product lineEFB0405MD W310
Model nameEFB0405MD
Product typeCase Fan
Product colorBlack
Power
Power input connector3 Pin
Size & build
Bearing designBall
Product dimensions40 × 40 × 20 mm
Compatibility
Compatible withCPU Cooler
In the box
In the boxRefer to title
More details
LED lightingNon-LED

Questions about this item

How do I install the 40×40×20 mm fan and which step is often missed?

Mount the square frame with four screws, plug the 3-pin connector into the motherboard header, then verify the 5 V 0.24 A rating matches the header limit — many forget to check current draw.

What maintenance will the ball-bearing fan need later?

The sealed ball bearing runs without lubrication; only periodic dust removal from the 40 mm blades is required.

What limit appears first during sustained 5 V operation?

The 0.24 A current ceiling restricts maximum airflow before thermal throttling becomes a factor.

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