{"product_id":"dc-5521-to-4pin-pwm-2-way-pc-fan-power-adapter-cable-12v","title":"DC 5521 to 4-Pin PWM 2-Way PC Fan Power Adapter Cable 12V","description":"\u003ch2\u003eDC 5521 to Dual 4-Pin PWM PC Fan Power Adapter Cable\u003c\/h2\u003e\n\u003cp\u003eNeed to power your PC or router case fans from a DC barrel jack source? This compact KOQZM adapter cable converts a standard DC 5521 (5.5mm × 2.1mm) barrel connector into two 4-pin PWM fan headers, giving you a clean and reliable power solution for cabinet fans, networking equipment cooling, and custom PC builds. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Fan Output:\u003c\/strong\u003e One DC 5521 input splits into 2 × 4-pin computer fan connectors — power two fans from a single DC adapter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePure Copper Conductors:\u003c\/strong\u003e Ensures excellent conductivity and minimal voltage drop for stable fan operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePVC Insulation:\u003c\/strong\u003e Durable, heat-resistant insulation rated up to 80°C for safe, long-term use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Weighs just 16g — easy to route inside tight enclosures or cable-managed builds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-Play:\u003c\/strong\u003e No tools required; simply connect and go\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal Cable Length:\u003c\/strong\u003e 35cm (main: 20cm, branch: 15cm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMain Wire Gauge:\u003c\/strong\u003e 22AWG, OD 4.5mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBranch Wire Gauge:\u003c\/strong\u003e 24AWG, OD 3.0mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConductor Material:\u003c\/strong\u003e Pure copper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsulation Material:\u003c\/strong\u003e PVC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Temperature:\u003c\/strong\u003e 80°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Color:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 16g\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnectors:\u003c\/strong\u003e 1 × DC 5521 (5.5mm\/2.1mm barrel) input | 2 × 4-pin PWM fan output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × DC 5521 to 4-Pin PWM 2-Way PC Fan Power Adapter Cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-relay-module-dc-3-3v-24v-optocoupler-arduino\"\u003e1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-25mm-1000-turn-precision-copper-inductor-coil-diy-electronics\"\u003e0.25mm 1000-Turn Precision Copper Inductor Coil for DIY Circuits\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on safe wiring and connector standards in electronics, refer to the \u003ca href=\"https:\/\/www.nist.gov\/topics\/electronics\" target=\"_blank\" rel=\"nofollow noopener\"\u003eNIST Electronics Resources\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What fan connector type does this cable support?\u003c\/h4\u003e\n\u003cp\u003eA: This adapter cable is compatible with standard 4-pin PWM computer fan connectors, commonly used in PC case fans, CPU fans, and router cooling fans. It does NOT support 3-pin fan headers.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this cable with a 12V DC power adapter?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the DC 5521 (5.5mm × 2.1mm) barrel connector on this cable is designed to work with standard 12V DC power adapters using that barrel size, making it ideal for powering fans in routers, NAS enclosures, and custom PC builds.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many fans can I connect to this cable?\u003c\/h4\u003e\n\u003cp\u003eA: This cable features a 2-way split, allowing you to connect and power two 4-pin PWM fans simultaneously from a single DC 5521 power source.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this cable safe for long-term continuous use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The cable uses pure copper conductors and PVC insulation rated up to 80°C, making it suitable for continuous operation in well-ventilated enclosures.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What fan connector type does this cable support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This adapter cable is compatible with standard 4-pin PWM computer fan connectors, commonly used in PC case fans, CPU fans, and router cooling fans. It does NOT support 3-pin fan headers.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this cable with a 12V DC power adapter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — the DC 5521 (5.5mm × 2.1mm) barrel connector on this cable is designed to work with standard 12V DC power adapters using that barrel size, making it ideal for powering fans in routers, NAS enclosures, and custom PC builds.\"}}, {\"@type\": \"Question\", \"name\": \"How many fans can I connect to this cable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This cable features a 2-way split, allowing you to connect and power two 4-pin PWM fans simultaneously from a single DC 5521 power source.\"}}, {\"@type\": \"Question\", \"name\": \"Is this cable safe for long-term continuous use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The cable uses pure copper conductors and PVC insulation rated up to 80°C, making it suitable for continuous operation in well-ventilated enclosures.\"}}]}\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:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/oasis-select.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"DC 5521 to 4-Pin PWM 2-Way PC Fan Power Adapter Cable 12V\", \"item\": \"https:\/\/oasis-select.com\/products\/dc-5521-to-4pin-pwm-2-way-pc-fan-power-adapter-cable-12v\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Type 7","offer_id":47751422509161,"sku":"14:350686#Type 7","price":2.28,"currency_code":"USD","in_stock":true},{"title":"Type 8","offer_id":47751422541929,"sku":"14:365311#Type 8","price":2.28,"currency_code":"USD","in_stock":true},{"title":"Type 9","offer_id":47751422574697,"sku":"14:350850#Type 9","price":2.28,"currency_code":"USD","in_stock":true},{"title":"Type 3","offer_id":47751422607465,"sku":"14:29#Type 3","price":2.28,"currency_code":"USD","in_stock":true},{"title":"Type 4","offer_id":47751422640233,"sku":"14:173#Type 4","price":2.28,"currency_code":"USD","in_stock":true},{"title":"Type 5","offer_id":47751422673001,"sku":"14:175#Type 5","price":2.28,"currency_code":"USD","in_stock":true},{"title":"Type 6","offer_id":47751422705769,"sku":"14:193#Type 6","price":2.28,"currency_code":"USD","in_stock":true},{"title":"Type 1","offer_id":47751422738537,"sku":"14:350852#Type 1","price":2.28,"currency_code":"USD","in_stock":true},{"title":"Type 2","offer_id":47751422771305,"sku":"14:10#Type 2","price":2.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S7b7da9ddda58410d98194d5061a35b87t.webp?v=1783189480","url":"https:\/\/oasis-select.com\/products\/dc-5521-to-4pin-pwm-2-way-pc-fan-power-adapter-cable-12v","provider":"Oasis Select","version":"1.0","type":"link"}