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Small black 30mm blower fan with turbine impeller

Fans

Fans UB5U3-500 3003 Blower 30mm 5V case fan

SKU CH-RPB5-G253V

A 30 mm micro blower moves air through tight spaces at 5 V

  • 30 mm square footprint fits ultra-compact builds
  • 5 V power enables direct USB or header connection
  • Blower design pushes air through tight channels
  • 3 mm slim profile clears low-clearance brackets

SUNON UB5U3-500 micro blower for tight spaces

This 30 mm square turbine fan runs on 5 V power and fits inside cramped enclosures where conventional axial fans cannot sit. The blower wheel pushes air through a focused outlet, making it suitable for small-form-factor PCs, embedded boards or peripheral cooling.

Ideal for builders needing directed airflow

Not suited for cases that require high-volume airflow across large heatsinks or radiators. Buyers who need PWM speed control or standard mounting hole spacing should look elsewhere.

How it compares

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

Price $17.99
Cheaper than about 57% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What 5 V header or power source do I need to run the UB5U3-500 blower?

The blower requires a 5 V power connection; plug it into a 5 V fan header on the motherboard or a 5 V supply with sufficient current.

Will the 30 mm blower fit in the same mounting holes as my existing 30 mm fans?

Yes, it uses the standard 30 mm square footprint, so existing 30 mm mounting points will align.

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