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Tiny black 25mm square fan with two wires

SunnyStar Co., Ltd

SunnyStar Co., Ltd FD0525107B-2N 25mm 5V 0.55W 2-wire CPU cooler

SKU CH-4Z3E-AQG4D

A 25 mm 5 V ball-bearing fan drawing 0.55 W, suited for routers, switches or small enclosures

  • ColorBlack
  • TypeFan only
  • Fan Size25mm
  • Bearing TypeBall
  • LEDNo
  • Ultra-compact 25 mm frame fits tight 2.5 cm spaces
  • Low 0.55 W draw at 5 V keeps power use minimal
  • Ball bearing design extends operating life in continuous use
  • Two-wire connection simplifies installation on routers or switches
  • 2510 form factor suits small server and inverter chassis

Compact 25 mm 5 V fan for tight spaces

The SunnyStar FD0525107B-2N is a 25 mm square, 10 mm thick micro cooler that draws 0.55 W at 5 V. Its two-wire design makes it a direct replacement for small chassis fans in routers, switches or embedded boards where space is measured in millimetres.

Check voltage header and mounting holes before

Verify that your device supplies a 5 V two-pin header and that the 25 mm screw pattern matches the existing cut-out. The fan uses ball bearings and has no PWM or tachometer signal, so speed control and monitoring are not available through the connector.

Steady airflow at constant 5 V without thermal

Under continuous load the unit maintains its rated 0.55 W draw and ball-bearing rotation without the speed dips seen in sleeve-bearing alternatives. The fixed-voltage design delivers consistent cooling for always-on network gear rather than burst-oriented CPU thermal spikes.

Points forts

  • Ultra-compact 25 mm frame fits tight 2.5 cm spaces
  • Low 0.55 W draw at 5 V keeps power use minimal
  • Ball bearing design extends operating life in continuous use
  • Two-wire connection simplifies installation on routers or switches
  • 2510 form factor suits small server and inverter chassis

Caractéristiques

ModelFD0525107B-2N
ColorBlack
TypeFan only
Fan Size25mm
Bearing TypeBall
LEDNo

Questions sur cet article

Does the FD0525107B-2N include mounting screws or a power adapter in the box?

The package contains the 25 mm ball-bearing fan with two-wire 5 V lead only; screws and any voltage adapter must be sourced separately.

How do I choose between the 2510 micro cooler and a larger frame for my router or switch?

Select the 2510 when the chassis allows only a 25 × 10 mm footprint; larger frames deliver more airflow but will not fit the same cut-out.

What does the 0.55 W rating mean for actual cooling inside a compact network device?

At 5 V the fan draws 0.55 W, providing modest airflow suited to low-heat router or switch boards rather than high-TDP CPUs.

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