{"product_id":"black-mini-gen2-brushless-dc-silencer-140mm-antminer-s21-family","title":"Black Mini Gen2 Brushless DC Silencer Blower — 140mm Fan Adapter for Antminer S21 \/ S21+ \/ S21 Pro \/ S21 Pro+ \/ S21 XP \/ T21","description":"\u003ch2\u003eBlack Mini Gen2 Brushless DC Silencer — 140mm Fan Adapter for Antminer S21 Family\u003c\/h2\u003e\n\u003cp\u003eThe premium \u003cstrong\u003eGen2 brushless DC silencer blower\u003c\/strong\u003e dedicated to the \u003cstrong\u003eAntminer S21 family\u003c\/strong\u003e. Pre-fitted with a \u003cstrong\u003e140mm fan exhaust adapter\u003c\/strong\u003e for all S21 generation miners: \u003cstrong\u003eS21, S21+, S21 Pro, S21 Pro+, S21 XP, T21\u003c\/strong\u003e. One blower, one adapter, plug-and-play for the entire S21 lineup.\u003c\/p\u003e\n\u003ch3\u003eWhy Gen2 Brushless DC vs Gen1 AC capacitor\u003c\/h3\u003e\n\u003cp\u003eThe Gen2 brushless DC motor replaces the AC capacitor motor of our Black Mini Standard (Gen1). Benefits over Gen1:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-50% energy savings\u003c\/strong\u003e vs AC capacitor at equivalent airflow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStepless speed knob\u003c\/strong\u003e — continuous wind regulation, vs Gen1's 3-position fixed switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50Hz \/ 60Hz universal input\u003c\/strong\u003e — runs identically on US, EU, UK, AU power grids without burning the motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower acoustic floor\u003c\/strong\u003e — variable frequency lets you reduce noise further during cooler hours or lower hashboard load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrushless = no carbon brushes\u003c\/strong\u003e — extended lifetime, no brush wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmaller compact size\u003c\/strong\u003e than Silver Industrial — lower shipping costs and easier handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eS21 family thermal envelope\u003c\/h3\u003e\n\u003cp\u003eThe Antminer S21 family runs hotter than legacy S19 — the S21 Pro+ and S21 XP push into the 250+ TH\/s range and require sustained ducted airflow to avoid thermal throttling. The Gen2 silencer's \u003cstrong\u003e1300 m³\/h (~765 CFM)\u003c\/strong\u003e matches the 4 × 140mm fan back-pressure of the S21 chassis. The stepless knob lets you tune airflow to your room ambient — full output during warm afternoons, trim down at night.\u003c\/p\u003e\n\u003ch3\u003eFan adapter — 140mm exhaust pre-fitted\u003c\/h3\u003e\n\u003cp\u003eThe included exhaust adapter is built for the \u003cstrong\u003eAntminer S21 family 4-fan layout\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eS21, S21+, T21\u003c\/strong\u003e — standard S21 chassis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS21 Pro, S21 Pro+, S21 XP\u003c\/strong\u003e — Pro family 4-fan layout\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSame physical exhaust footprint across all S21 generations — one adapter covers the lineup.\u003c\/p\u003e\n\u003ch3\u003eEasy installation\u003c\/h3\u003e\n\u003cp\u003eRemove the 4 original S21 fans, plug a fan speed simulator into each of the 4 fan headers (Antminer S21\/T21 simulator recommended), mate the blower exhaust to the included 140mm × 4 adapter, connect 220V power. Operational in 10 minutes. \u003cstrong\u003eCooling effect after install : approximately -10°C on S21 internal temperature.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack Mini Gen2 brushless DC blower\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eCompact plastic housing, stepless knob\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e140mm × 4 exhaust adapter (Antminer S21 family)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003ePre-fitted, no variant choice required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower cable\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eUS \/ EU \/ UK \/ AU per variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan speed simulators (4 needed)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eSold separately, S21\/T21 dedicated simulator recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor type\u003c\/td\u003e\n\u003ctd\u003eBrushless DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed control\u003c\/td\u003e\n\u003ctd\u003eStepless knob (continuous regulation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWind speed\u003c\/td\u003e\n\u003ctd\u003e~12 m\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine speed\u003c\/td\u003e\n\u003ctd\u003e1800 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir volume\u003c\/td\u003e\n\u003ctd\u003e1300 m³\/h (~765 CFM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput voltage\u003c\/td\u003e\n\u003ctd\u003e220V universal (50Hz\/60Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption\u003c\/td\u003e\n\u003ctd\u003e162W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling effect\u003c\/td\u003e\n\u003ctd\u003e-10°C on miner internal temp (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor lifetime\u003c\/td\u003e\n\u003ctd\u003e50,000+ hours (no carbon brushes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency gain vs Gen1 AC\u003c\/td\u003e\n\u003ctd\u003e30-50%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eCompact plastic, lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible fan layout\u003c\/td\u003e\n\u003ctd\u003e4 × 140mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible miners\u003c\/td\u003e\n\u003ctd\u003eAntminer S21, S21+, S21 Pro, S21 Pro+, S21 XP, T21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMode of operation\u003c\/td\u003e\n\u003ctd\u003eContinuous duty 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower plug options\u003c\/td\u003e\n\u003ctd\u003eUS \/ EU \/ UK \/ AU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eNeed fan simulators? (4 required for this silencer)\u003c\/h3\u003e\n\u003cp\u003eThe Gen2 silencer ships without fan simulators. You'll need 4 simulators for the S21 family control board:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/antminer-s21-t21-fan-speed-simulator-water-cooling-silencer-blower\"\u003eAntminer S21 \/ T21 Fan Speed Simulator (dedicated)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/antminer-fan-speed-simulator-4-in-1\"\u003eAntminer 4-in-1 Fan Speed Simulator (universal alternative)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/black-mini-gen2-brushless-dc-silencer-120mm-antminer-iceriver-avalon\"\u003eBlack Mini Gen2 Brushless DC 120mm × 4 (Antminer Modern + Legacy + Iceriver + Avalon)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/black-mini-gen2-brushless-dc-silencer-140mm-whatsminer-m20-m30-m50-m60\"\u003eBlack Mini Gen2 Brushless DC 140mm × 2 (Whatsminer M20-M60)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/antminer-s21-silver-industrial-silencer-blower-pure-copper-1750cfm\"\u003eAntminer S21 \/ T21 Silver Industrial Silencer (Gen1 AC, 200W\/300W copper motor)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/antminer-s21-t21-black-mini-silencer-blower\"\u003eAntminer S21 \/ T21 Black Mini Standard Silencer (Gen1 AC, 300W\/400W)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePremium positioning — ideal for home miners and small-fleet operators running modern S21 rigs who value acoustic precision and motor longevity. For bulk pricing, email \u003ca href=\"mailto:contact@lys-sz.com\"\u003econtact@lys-sz.com\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWorldwide shipping from our Shenzhen warehouse. \u003cstrong\u003eDDP available for US and EU customers\u003c\/strong\u003e.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"US","offer_id":45547506860211,"sku":null,"price":66.0,"currency_code":"USD","in_stock":true},{"title":"EU","offer_id":45547506892979,"sku":null,"price":66.0,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":45547506925747,"sku":null,"price":66.0,"currency_code":"USD","in_stock":true},{"title":"CN","offer_id":45547506958515,"sku":null,"price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/black-mini-gen2-brushless-dc-silencer-miner-stepless.webp?v=1780212704","url":"https:\/\/lys-sz.com\/products\/black-mini-gen2-brushless-dc-silencer-140mm-antminer-s21-family","provider":"LYS Shenzhen","version":"1.0","type":"link"}