{"product_id":"whatsminer-p21-power-supply-psu-3300w","title":"Whatsminer P21 Power Supply PSU 3300W M20 M21 series","description":"\u003ch2\u003eWhatsminer P21 3300W Switching Power Supply – Reliable Power for M10, M20S \u0026amp; M21S Miners\u003c\/h2\u003e\n\u003cp\u003eThe Whatsminer P21 (model P21-12-3600-V1) is a 3,300-watt switching power supply engineered to deliver stable, high-current output to Whatsminer M10, M20S and M21S mining rigs. With a wide 200–277 VAC input range and dual 12 V rails providing up to 285 A on the main output and 12 A on the auxiliary rail, this PSU ensures your miners receive clean, consistent power under full load. The C19 connector enables straightforward installation with no adapter required.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the P21 for Your Whatsminer Setup\u003c\/h3\u003e\n\u003cp\u003eThe wide 200–277 VAC input range makes the P21 compatible with both 220 V and 240 V circuits commonly found in mining facilities across Asia, Europe and the Americas, eliminating the need for step-up or step-down transformers. The standard C19 plug connects directly to heavy-duty PDUs and industrial power strips without adapters.\u003c\/p\u003e\n\u003ch3\u003eInstallation \u0026amp; Maintenance Tips\u003c\/h3\u003e\n\u003cp\u003eBefore installing the P21, verify that your input circuit is rated for at least 20 A at the local mains voltage. Connect the C19 cable firmly—a loose connection under high current can generate heat and trigger protective shutdown. After powering on, confirm that the 12 V output reads within ±5 % on both rails using a multimeter or the miner's built-in voltage reporting. If you experience intermittent reboots, check the 20 A glass fuse on the input stage and inspect the output cable for damage before replacing the entire unit.\u003c\/p\u003e\n\u003ch4\u003eP21 PSU Technical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eP21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSwitching Power Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200-277VAC 50\/60Hz 20A Max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V – 285A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V – 12A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3300W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePlug Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eC19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Devices\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhatsminer M10, M20, M20S, M21, M21S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eRelated Replacement Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/20a-250v-glass-fuse-whatsminer-p21-psu-repair\"\u003e20A 250V Glass Fuse – Whatsminer P21 PSU Repair\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/bcx53-al-pnp-silicon-af-transistor-whatsminer-psu-p21\"\u003eBCX53 PNP Transistor – Whatsminer PSU P21\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/18p-data-cable-whatsminer-m21b-psu-power-supply-connection\"\u003e18P Data Cable – Whatsminer M21B PSU Connection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/advanced-hr1001a-mps1745-llc-controller-whatsminer-power-supply-repair\"\u003eHR1001A LLC Controller – Whatsminer Power Supply Repair\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNeed a quote for multiple units or have questions about compatibility with your mining setup? \u003ca href=\"mailto:contact@lys-sz.com\"\u003eContact us at contact@lys-sz.com\u003c\/a\u003e — our team of mining hardware engineers is ready to help.\u003c\/p\u003e\n\u003cp\u003eWorldwide shipping from our Shenzhen warehouse.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":41715946094771,"sku":null,"price":112.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/P21-whatsminer-Switching-Power-Supply-PSU-3300W-C19-plug-m20-m21-crypto-miner_2.webp?v=1747103508","url":"https:\/\/lys-sz.com\/products\/whatsminer-p21-power-supply-psu-3300w","provider":"LYS Shenzhen","version":"1.0","type":"link"}