{"product_id":"12v-40mm-4-pin-pwm-server-cooling-fan-dual-ball-bearing","title":"12V 40mm 4-Pin PWM Server Cooling Fan – Dual Ball Bearing","description":"\u003ch2\u003e12V 1A 4-Pin PWM High-Speed 40mm Server Cooling Fan – Dual Ball Bearing\u003c\/h2\u003e\n\n\u003cp\u003eKeep your server, workstation, or high-performance electronics running at optimal temperatures with this compact yet powerful 40×40mm PWM cooling fan. Engineered for demanding environments, the dual ball bearing design ensures long-lasting, reliable airflow even during continuous high-speed operation.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Pin PWM Control:\u003c\/strong\u003e Intelligent speed regulation adapts airflow to your system's thermal demands, keeping noise low when cooling needs are minimal and ramping up when it counts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Ball Bearing:\u003c\/strong\u003e Superior to sleeve-bearing fans, dual ball bearings extend the fan's service life and maintain consistent performance over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed Performance:\u003c\/strong\u003e Delivers powerful, concentrated airflow in a compact 40×40mm (4×4cm) form factor — ideal for 1U\/2U servers, network switches, and dense equipment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Wire Design:\u003c\/strong\u003e Features separate wires for power, ground, RPM tachometer signal, and PWM control for full compatibility with motherboard fan headers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Reference Model:\u003c\/strong\u003e Fits AVC 4028 \/ DBTB0428B2G server fan replacement applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Made from high-quality black plastic housing — lightweight yet sturdy.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% Brand New:\u003c\/strong\u003e Shipped in brand-new condition, ready to install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Pin PWM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 × 40mm (1.57 × 1.57 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBearing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 40mm 4-Pin PWM Cooling Fan\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow ±5–10mm tolerance due to manual measurement. Colors may vary slightly from product images due to monitor settings and lighting conditions.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-2-inch-8-piece-hex-short-socket-set-vanadium-steel\"\u003e1\/2\" Drive 8-Piece Hex Short Socket Set – Vanadium Steel\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hex-nut-bolt-extractor-tool-kit-10-piece\"\u003e10-Pc Hex Nut \u0026amp; Bolt Extractor Kit 9–19mm | HIP Tools\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/105-degree-right-angle-driver-with-hex-screwdriver-bit\"\u003e105° Right Angle Driver with 1\/4\" Hex Screwdriver Bit | HIP\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What systems is this 40mm PWM cooling fan compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This 12V 4-pin PWM cooling fan is designed as a replacement or upgrade for AVC 4028 \/ DBTB0428B2G server fans. Its standard 40×40mm size also makes it compatible with a wide range of 1U\/2U rack servers, network switches, NAS enclosures, and other equipment using 40mm fan mounts with a 4-pin PWM header.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the advantage of a dual ball bearing fan over a sleeve bearing fan?\u003c\/h4\u003e\n\u003cp\u003eA: Dual ball bearing fans offer a significantly longer operational lifespan, better performance at higher speeds, and greater reliability when mounted in non-horizontal orientations. They are the preferred choice for server and enterprise equipment running 24\/7.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I control the fan speed with my motherboard?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The 4-pin PWM connector allows your motherboard or server management system to automatically regulate the fan speed based on real-time temperature readings, helping to balance cooling performance and noise levels.\u003c\/p\u003e\n\u003ch4\u003eQ: What is included in the package?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes one (1) 40mm 4-pin PWM dual ball bearing cooling fan. No adapter or additional accessories are included.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What systems is this 40mm PWM cooling fan compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This 12V 4-pin PWM cooling fan is designed as a replacement or upgrade for AVC 4028 \/ DBTB0428B2G server fans. 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