{"product_id":"12cm-120mm-cooling-exhaust-fan-3000rpm-speed-controller-3v-12v-pc-btc-miner-server","title":"12cm PC Cooling Fan 3000RPM | Speed Controller 3V–12V","description":"\n\u003ch2\u003e12cm Exhaust \u0026amp; Cooling Fan with Variable Speed Controller\u003c\/h2\u003e\n\u003cp\u003eKeep your rig running cool and quiet with this high-performance \u003cstrong\u003e120mm (12cm) cooling and exhaust fan\u003c\/strong\u003e. Engineered for demanding environments, it spins up to \u003cstrong\u003e3000 RPM\u003c\/strong\u003e and supports a wide voltage range of \u003cstrong\u003e3V to 12V\u003c\/strong\u003e via its included speed controller — giving you precise airflow management for any workload.\u003c\/p\u003e\n\n\u003cp\u003eWhether 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.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e120mm (12cm) Fan Size\u003c\/strong\u003e — a universally compatible size for PC cases, server racks, and cabinets\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3000 RPM Max Speed\u003c\/strong\u003e — powerful airflow to keep components at safe operating temperatures\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Voltage Controller (3V–12V)\u003c\/strong\u003e — dial in the exact speed and noise level you need\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application\u003c\/strong\u003e — ideal for BTC miners, PC chassis, workstations, server cabinets, and radiator systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAC Power Source\u003c\/strong\u003e — 220V input for reliable mains-powered operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e — built to run continuously in high-demand computing environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFan Diameter:\u003c\/strong\u003e 120mm (12cm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Speed:\u003c\/strong\u003e 3000 RPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e 3V – 12V (adjustable via controller)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e AC 220V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible With:\u003c\/strong\u003e BTC Miners, PC Chassis, Workstations, Server Cabinets, Radiators\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible With\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBitcoin (BTC) mining rigs and crypto mining frames\u003c\/li\u003e\n  \u003cli\u003eDesktop PC chassis and mid\/full tower cases\u003c\/li\u003e\n  \u003cli\u003eWorkstation and server cabinet enclosures\u003c\/li\u003e\n  \u003cli\u003eLiquid cooling radiators\u003c\/li\u003e\n  \u003cli\u003eNetwork equipment cabinets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on safe PC building practices and thermal management, visit the U.S. Department of Energy — Server Efficiency Resources.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster | Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/everything-is-fine-trust-government-mens-graphic-t-shirt-cotton\"\u003e\"Everything Is Fine\" Funny Men's Graphic T-Shirt | Cotton Tee\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage does this 12cm cooling fan operate at?\u003c\/h4\u003e\n\u003cp\u003eA: This fan includes a variable speed controller that supports an operating voltage range of \u003cstrong\u003e3V to 12V\u003c\/strong\u003e. The AC power source runs on 220V mains power, which the controller converts to deliver adjustable DC voltage to the fan.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this 120mm fan compatible with BTC mining rigs?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I control the fan speed?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum RPM of this cooling fan?\u003c\/h4\u003e\n\u003cp\u003eA: This fan reaches a maximum speed of \u003cstrong\u003e3000 RPM\u003c\/strong\u003e, delivering strong, consistent airflow suitable for high-heat computing environments including crypto mining setups and server racks.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage does this 12cm cooling fan operate at?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This fan includes a variable speed controller that supports an operating voltage range of 3V to 12V. 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