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Arctic S4028-6K 40mm Server Fan – 250-6000 RPM PWM, 4-Pin Connector, 12V, Dual Ball Bearing
About this item
This little guy might be small, but it sure packs a punch.
The Arctic S4028-6K is a legit 40mm server fan that spins anywhere from a whisper-quiet 250 RPM all the way up to a jet-engine 6000 RPM.
Yep, it’s PWM-controlled, so your system calls the shots on speed.
Whether you're cooling a tight server setup or a 3D printer enclosure, this 12V fan moves air at 7.1 CFM with 4.2 mm H₂O static pressure—solid for its size.
Dual ball bearings mean it’s built to last, and Arctic backs it with a full 6-year warranty.
Comes with a standard 2510 4-pin connector, so no guesswork.
Retail packaging, brand new, ready to roll.
USD$ 5.25 
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4.2 out of 5 stars
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