{"product_id":"usb-to-4pin-pwm-5v-12v-fan-power-adapter-converter-cable","title":"USB to 4-Pin PWM 5V–12V Fan Power Adapter Converter Cable","description":"\n\u003ch2\u003eUSB to 4-Pin PWM Fan Power Adapter Converter Cable\u003c\/h2\u003e\n\u003cp\u003ePower your PC chassis fan or CPU fan directly from a USB port with this compact 5V to 12V boost converter cable. Whether you're building a custom laptop cooling pad, repurposing a PC fan for a DIY project, or simply need to run a 12V fan from a USB power source, this adapter cable makes it quick and easy — no additional power supply required.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5V USB Input → 12V Fan Output:\u003c\/strong\u003e Built-in boost converter steps up standard USB 5V power to the 12V required by most PC fans.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Pin PWM Connector:\u003c\/strong\u003e Compatible with standard 4-pin chassis and CPU fans for reliable, stable power delivery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Speed Switch:\u003c\/strong\u003e Inline control switch lets you fine-tune fan speed to balance airflow and noise to your preference.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAll-Copper Core Wire:\u003c\/strong\u003e Ensures efficient power transmission with minimal energy loss.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePVC Insulation:\u003c\/strong\u003e Durable outer jacket protects wiring and provides long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e ~35cm (approx. 13.8 in) cable length — ideal for desktop setups, DIY cooling pads, and custom builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Power:\u003c\/strong\u003e Supports up to 11W output — sufficient for most standard PC fans.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V (USB)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~35cm \/ ~13.8 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWire Outer Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOD 3.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard USB-A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Pin Fan (PWM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePowering PC chassis or CPU fans via a USB port or power bank\u003c\/li\u003e\n  \u003cli\u003eConverting existing PC fans for use in DIY laptop cooling pads\u003c\/li\u003e\n  \u003cli\u003eCustom PC builds and mod projects requiring flexible fan power options\u003c\/li\u003e\n  \u003cli\u003eWorkshop or bench cooling setups using available USB power sources\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You Might Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10cm-wireless-led-motion-sensor-night-light-type-c-rechargeable-cabinet-wardrobe-lamp-for-staircase-backlight-kitchen-lighting\"\u003e10CM Wireless LED Motion Sensor Night Light – Type-C Rechargeable Cabinet Lamp\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-100pcs-microfiber-towels-car-wash-drying-cloth-towel-household-cleaning-cloths-auto-detailing-polishing-cloth-home-clean-tools\"\u003eMicrofiber Towels – Car Wash \u0026amp; Household Cleaning Cloths\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-precision-japanese-double-edged-hand-saw-sk5-steel-fine-toothed-for-carpentry-and-gardening-6-inch-blade-portable-mini-1\"\u003e1pc Precision Japanese Double-Edged Hand Saw – SK5 Steel, Portable Mini\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Will this USB to 4-Pin fan power adapter work with any USB power source?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the cable accepts any standard 5V USB-A power source, including PC USB ports, USB wall adapters, and power banks. Just ensure your USB source can supply enough current for the fan you're powering (the cable supports up to 11W maximum output).\u003c\/p\u003e\n\u003ch4\u003eQ: Is this cable compatible with 3-pin fans as well as 4-pin PWM fans?\u003c\/h4\u003e\n\u003cp\u003eA: The output connector is a standard 4-pin fan connector. While it may physically fit a 3-pin fan with an adapter, it is designed and optimized for 4-pin PWM chassis and CPU fans. The speed adjust switch allows manual fan speed control regardless of PWM support.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this cable to build a DIY laptop cooling pad with a PC fan?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely! This is one of the most popular uses for this cable. Simply connect your preferred 12V PC fan to the 4-pin output and plug the USB end into your laptop's USB port or a USB charger to create a custom, effective cooling solution.\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\": \"Will this USB to 4-Pin fan power adapter work with any USB power source?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — the cable accepts any standard 5V USB-A power source, including PC USB ports, USB wall adapters, and power banks. Just ensure your USB source can supply enough current for the fan you're powering (the cable supports up to 11W maximum output).\"}}, {\"@type\": \"Question\", \"name\": \"Is this cable compatible with 3-pin fans as well as 4-pin PWM fans?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The output connector is a standard 4-pin fan connector. 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Simply connect your preferred 12V PC fan to the 4-pin output and plug the USB end into your laptop's USB port or a USB charger to create a custom, effective cooling solution.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"USB to 4-Pin PWM 5V–12V Fan Power Adapter Converter Cable\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/products\/usb-to-4pin-pwm-5v-12v-fan-power-adapter-converter-cable\"}]}\u003c\/script\u003e","brand":"Babs","offers":[{"title":"02","offer_id":53157901402252,"sku":"14:10#02","price":6.69,"currency_code":"USD","in_stock":true},{"title":"01","offer_id":53157901435020,"sku":"14:350852#01","price":6.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/2862\/6316\/files\/S1dcea20e94184f45874c03e37d6dbe438.webp?v=1787162492","url":"https:\/\/babcustomersupport.com\/products\/usb-to-4pin-pwm-5v-12v-fan-power-adapter-converter-cable","provider":"Babs","version":"1.0","type":"link"}