12cm PC Cooling Fan 3000RPM | Speed Controller 3V–12V

12cm Exhaust & Cooling Fan with Variable Speed Controller

Keep your rig running cool and quiet with this high-performance 120mm (12cm) cooling and exhaust fan. Engineered for demanding environments, it spins up to 3000 RPM and supports a wide voltage range of 3V to 12V via its included speed controller — giving you precise airflow management for any workload.

Whether you're building a BTC mining rig, upgrading a workstation, organizing a server cabinet, or improving airflow in a PC chassis or radiator setup, this fan delivers reliable, consistent performance in a compact 120mm form factor.

Key Features

• 120mm (12cm) Fan Size — a universally compatible size for PC cases, server racks, and cabinets
• 3000 RPM Max Speed — powerful airflow to keep components at safe operating temperatures
• Variable Voltage Controller (3V–12V) — dial in the exact speed and noise level you need
• Wide Application — ideal for BTC miners, PC chassis, workstations, server cabinets, and radiator systems
• AC Power Source — 220V input for reliable mains-powered operation
• Durable Construction — built to run continuously in high-demand computing environments

Specifications

• Fan Diameter: 120mm (12cm)
• Max Speed: 3000 RPM
• Voltage Range: 3V – 12V (adjustable via controller)
• Power Source: AC 220V
• Compatible With: BTC Miners, PC Chassis, Workstations, Server Cabinets, Radiators
• Country of Origin: Made in China

Compatible With

• Bitcoin (BTC) mining rigs and crypto mining frames
• Desktop PC chassis and mid/full tower cases
• Workstation and server cabinet enclosures
• Liquid cooling radiators
• Network equipment cabinets

For more information on safe PC building practices and thermal management, visit the U.S. Department of Energy — Server Efficiency Resources.

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Frequently Asked Questions

Q: What voltage does this 12cm cooling fan operate at?

A: This fan includes a variable speed controller that supports an operating voltage range of 3V to 12V. The AC power source runs on 220V mains power, which the controller converts to deliver adjustable DC voltage to the fan.

Q: Is this 120mm fan compatible with BTC mining rigs?

A: Yes! This fan is specifically designed for use with BTC miners, PC chassis, workstations, server cabinets, and radiators. The 120mm size is one of the most universally compatible formats in computing and server infrastructure.

Q: Can I control the fan speed?

A: Absolutely. The included speed controller allows you to adjust the voltage from 3V to 12V, directly controlling the fan's RPM and noise level. This lets you balance airflow performance and acoustic output to suit your needs.

Q: What is the maximum RPM of this cooling fan?

A: This fan reaches a maximum speed of 3000 RPM, delivering strong, consistent airflow suitable for high-heat computing environments including crypto mining setups and server racks.