120mm 3000RPM Server Cooling Fan 12V with Speed Controller

120mm High-Speed Server Cooling Fan with Speed Controller

Keep your workstation, mining rig, server cabinet, or chassis running at optimal temperatures with this powerful 120mm 3000RPM DC 12V Cooling Fan. Engineered for high-demand environments, this fan delivers powerful, consistent airflow to protect your hardware investments. The included speed controller lets you dial in exactly the airflow you need — all from a standard wall outlet.

Why Choose This 120mm Server Fan?

• Plug & Play Setup — Simply connect the speed controller to the fan terminals and plug into any standard wall outlet (AC 100V–240V compatible worldwide)
• Variable Speed Control — Adjustable output from DC 3V–12V so you can balance airflow and noise levels to your preference
• High Durability Bearings — Available with Dual Ball or Hydraulic bearing options for extended operational life of 40,000–50,000 hours
• Compact & Versatile Form Factor — Standard 120x120x25mm size fits most chassis, cabinets, workstations, server racks, and BTC mining machines
• Rated 3000RPM ±10% — Delivers strong, steady airflow to keep sensitive electronics cool during intensive workloads
• DC 5.5x2.1mm Connector — Universal connector type for straightforward installation

Full Specifications

Fan Parameters

• Dimensions: 120 x 120 x 25mm
• Rated Voltage: DC 12V
• Rated Speed: 3000 RPM ±10%
• Bearing Type: Dual Ball / Hydraulic
• Power Connector: DC 5.5 x 2.1mm
• Cable Length: ~350mm (35cm)
• Service Life: 40,000–50,000 hours
• Net Weight: 345g per fan

Speed Controller / Adapter Parameters

• Input: AC 100V–240V, 50/60Hz (universal)
• Output: DC 3V–12V
• Current: 200–2000mA
• Includes On/Off Switch: Yes
• Weight: 158g per unit
• Power Plug Adapter: 10A, 2.5/250V

What's in the Box

• 1x 120mm Server Cooling Fan
• 1x Speed Controller / Power Adapter

Perfect For

• BTC / Cryptocurrency Mining Machines
• Server Racks & Cabinets
• Workstations & Desktop Chassis
• Network Equipment Enclosures
• DIY Cooling & Ventilation Projects

Made in Mainland China.

For more information on electronics safety standards and best practices for computer hardware cooling, visit U.S. Consumer Product Safety Commission (CPSC).

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Frequently Asked Questions

Q: What voltage does this 120mm cooling fan operate on?

A: The fan itself is rated for DC 12V. However, the included speed controller accepts a universal AC input of 100V–240V (50/60Hz), converting it to DC 3V–12V — making it compatible with standard wall outlets in the US, EU, and most countries worldwide.

Q: Can I control the fan speed?

A: Yes! The included speed control adapter allows you to adjust the output voltage from DC 3V to DC 12V, giving you full control over the fan's rotational speed. Lower voltage = quieter, slower fan; higher voltage = maximum 3000RPM airflow performance.

Q: What chassis or systems is this fan compatible with?

A: This fan uses the standard 120x120x25mm form factor, which is compatible with most PC chassis, server cabinets, workstations, BTC/cryptocurrency mining rigs, and network equipment enclosures that accept 120mm fans. The DC 5.5x2.1mm connector ensures broad device compatibility.

Q: How long will this fan last?

A: This fan is rated for 40,000–50,000 hours of operational life, thanks to its high-quality Dual Ball or Hydraulic bearing construction. That equates to roughly 4–5+ years of continuous 24/7 operation.