{"product_id":"sunon-4020-12v-3-pin-cooling-fan-kde1204pkv3-40-40-20mm-ultra-quiet-15-5dba","title":"Sunon 4020 12V 3-Pin Cooling Fan — KDE1204PKV3 (40×40×20mm, Ultra-Quiet 15.5dBA)","description":"\u003cstyle\u003e\n  @import url('https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:wght@400;500;600;700\u0026display=swap');\n  .nzn-desc .tagline{font-family:'DM Sans',sans-serif;font-size:17px;line-height:1.7;color:#333;border-left:3px solid #e07e2c;padding-left:16px;margin-bottom:32px}\n  .nzn-desc .section-title{font-family:'DM Sans',sans-serif;font-size:15px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#e07e2c;margin-bottom:14px}\n  .nzn-desc .specs-table{width:100%;border-collapse:collapse;margin-bottom:32px;font-family:'DM Sans',sans-serif;font-size:14px}\n  .nzn-desc .specs-table tr{border-bottom:1px solid #ebebeb}\n  .nzn-desc .specs-table tr:last-child{border-bottom:none}\n  .nzn-desc .specs-table td{padding:10px 8px}\n  .nzn-desc .specs-table td:first-child{color:#888;width:42%;font-size:14px}\n  .nzn-desc .specs-table td:last-child{font-weight:600;color:#1a1a1a}\n  .nzn-desc .uses-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:32px}\n  .nzn-desc .use-item{background:#f7f7f7;border-left:3px solid #e07e2c;padding:12px 14px;font-family:'DM Sans',sans-serif;font-size:13.5px;line-height:1.5;color:#2a2a2a}\n  .nzn-desc .note{background:#fafafa;border:1px solid #e8e8e8;border-radius:4px;padding:14px 16px;font-family:'DM Sans',sans-serif;font-size:13px;color:#888;line-height:1.6}\n  .nzn-desc .note strong{color:#555}\n  .nzn-desc .setup-box{background:#f0f7ff;border-left:3px solid #4a90d9;padding:14px 16px;font-family:'DM Sans',sans-serif;font-size:13px;color:#2c4a6e;line-height:1.7;margin-bottom:32px;border-radius:0 4px 4px 0}\n  .nzn-desc .faq-item{margin-bottom:12px}\n  .nzn-desc .faq-q{font-family:'DM Sans',sans-serif;font-size:13.5px;font-weight:700;color:#1a1a1a;margin-bottom:3px}\n  .nzn-desc .faq-a{font-family:'DM Sans',sans-serif;font-size:13.5px;color:#555;line-height:1.5;padding-left:14px;border-left:2px solid #e07e2c}\n  .nzn-desc hr.divider{border:none;border-top:1px solid #ebebeb;margin:28px 0}\n\u003c\/style\u003e\n\u003cdiv class=\"nzn-desc\" style=\"max-width:1200px;margin:0 auto;\"\u003e\n\n  \u003cp class=\"tagline\"\u003eGenuine Sunon 40×40×20mm 12V DC cooling fan with electromagnetic MagLev bearing. Rated at 15.5dBA — near-silent in operation. 8.9 CFM airflow at 3,000 RPM and rated for 100,000 hours of continuous use. A direct OEM replacement used in routers, NAS enclosures, 3D printers, and embedded systems worldwide.\u003c\/p\u003e\n\n  \u003chr class=\"divider\"\u003e\n\n  \u003cp class=\"section-title\"\u003eSpecifications\u003c\/p\u003e\n  \u003ctable class=\"specs-table\"\u003e\n    \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eKDE1204PKV3 MS.AF.GN\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e40 × 40 × 20mm (4020)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003e3-Pin (GND \/ 12V \/ Tach)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eElectromagnetic (MagLev)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWorking Voltage Range\u003c\/td\u003e\n\u003ctd\u003e4V – 13V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e0.4W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpeed\u003c\/td\u003e\n\u003ctd\u003e3,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAirflow\u003c\/td\u003e\n\u003ctd\u003e8.9 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNoise Level\u003c\/td\u003e\n\u003ctd\u003e15.5 dBA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRated Lifespan\u003c\/td\u003e\n\u003ctd\u003e100,000 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGenuine Sunon\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003chr class=\"divider\"\u003e\n\n  \u003cp class=\"section-title\"\u003eWiring — 3-Pin Connector\u003c\/p\u003e\n  \u003ctable class=\"specs-table\"\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBlack wire\u003c\/td\u003e\n\u003ctd\u003eGND (negative \/ ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRed wire\u003c\/td\u003e\n\u003ctd\u003e+12V (positive supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eYellow wire\u003c\/td\u003e\n\u003ctd\u003eTach signal (speed feedback — optional, can be left unconnected)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n  \u003cdiv class=\"setup-box\"\u003eThis is a 3-pin fan — it does \u003cstrong\u003enot\u003c\/strong\u003e support PWM speed control. Speed is fixed at 3,000 RPM when powered at 12V. The tach wire provides a pulse signal for fan speed monitoring only; it does not need to be connected for the fan to operate. Running at lower voltages (down to ~4V) will reduce speed and noise at the cost of airflow.\u003c\/div\u003e\n\n  \u003chr class=\"divider\"\u003e\n\n  \u003cp class=\"section-title\"\u003eWhat's Included\u003c\/p\u003e\n  \u003ctable class=\"specs-table\"\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1 ×\u003c\/td\u003e\n\u003ctd\u003eSunon KDE1204PKV3 40×40×20mm fan with pre-attached 3-pin connector\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003chr class=\"divider\"\u003e\n\n  \u003cp class=\"section-title\"\u003eCommon Uses\u003c\/p\u003e\n  \u003cdiv class=\"uses-grid\"\u003e\n    \u003cdiv class=\"use-item\"\u003eRouter \u0026amp; NAS fan replacement — Ubiquiti, MikroTik, Synology \u0026amp; others\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003e3D printer hotend \u0026amp; electronics bay cooling\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eMini-PC, SBC \u0026amp; embedded system enclosure cooling\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eNetwork switches \u0026amp; rack equipment ventilation\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eIndustrial \u0026amp; medical equipment using 40mm 12V fans\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eAny device requiring a 40×40×20mm 12V 3-pin replacement\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003chr class=\"divider\"\u003e\n\n  \u003cp class=\"section-title\"\u003eCommon Questions\u003c\/p\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cdiv class=\"faq-q\"\u003eCan I control the speed with PWM?\u003c\/div\u003e\n    \u003cdiv class=\"faq-a\"\u003eNo — this is a 3-pin fan (GND, 12V, Tach) with no PWM wire. Speed is fixed at 3,000 RPM at 12V. To reduce speed, lower the supply voltage, but note airflow and cooling performance will decrease proportionally.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cdiv class=\"faq-q\"\u003eWill this fit my device — how do I check?\u003c\/div\u003e\n    \u003cdiv class=\"faq-a\"\u003eMeasure your existing fan: the body should be 40mm × 40mm × 20mm deep, with mounting holes on a 32mm square pattern. Confirm your device uses a 3-pin 12V header. The connector style is standard JST-style 3-pin.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cdiv class=\"faq-q\"\u003eIs this a genuine Sunon fan or a clone?\u003c\/div\u003e\n    \u003cdiv class=\"faq-a\"\u003eGenuine Sunon — the model number KDE1204PKV3 MS.AF.GN is a real Sunon part. Sunon is a Taiwanese manufacturer used by OEMs worldwide. The MagLev bearing provides significantly longer lifespan than ball or sleeve bearings.\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003chr class=\"divider\"\u003e\n\n  \u003cp class=\"note\"\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e 3-pin connector (GND \/ 12V \/ Tach) — no PWM speed control. Verify your device uses a 3-pin header before ordering. Genuine Sunon — not a generic clone.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Sunon","offers":[{"title":"Default Title","offer_id":42735877587040,"sku":"SUNON-4020-KDE1204PKV3","price":15.65,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/Sunon_Main_Fan_Angled_4020.png?v=1777800767","url":"https:\/\/www.nznelectronics.co.nz\/products\/sunon-4020-12v-3-pin-cooling-fan-kde1204pkv3-40-40-20mm-ultra-quiet-15-5dba","provider":"NZN Electronics","version":"1.0","type":"link"}