Bitmain Antminer S21 Pro (220Th)은(는) Bitmain의 SHA-256 알고리즘용 ASIC 채굴기로, 3,300 W에서 220 TH/s의 성능을 냅니다. 2024년 7월에 출시되었습니다. 효율 15.0 J/TH로, 저희가 추적하는 SHA-256 채굴기 중앙값(20.4 J/TH)보다 26% 더 효율적입니다. $0.036/kWh 기준 일일 수익으로 299대의 SHA-256 채굴기 중 97위이며, BTC 채굴로 하루 약 $5.16를 법니다. AsicProfit 최저가는 $1,899입니다. 현재 수치로는 약 368일 만에 본전을 찾습니다. 75 dB로 전용 채굴장이나 호스팅 시설에 두어야 합니다.
질문과 답변 6
이 채굴기에 대해 질문하세요. 인증된 계정이 질문하고 답하며, 판매자는 매장 이름으로 답합니다. 모든 글은 확인 후 게시됩니다.
Ryan M. · 2026년 10월 12일 · 다른 버전에 대해
How reliable is the S21 Pro, and how long is the warranty?
AsicProfit SupportAsicProfit · 2026년 10월 12일
Owner reports vary by batch. Some farms see low failure rates and others report fan, power supply and hashboard problems within months. Fans and power supplies are the cheaper, easier fixes. Bitmain's shop gives 365 days of warranty from shipping for the original buyer, while resellers set their own terms. Keep intake air clean and within minus 20 to 45 C to reduce failures.
Javier O. · 2026년 10월 7일 · 다른 버전에 대해
I pay high electricity rates, will an S21 Pro at home even cover its power bill?
AsicProfit SupportAsicProfit · 2026년 10월 8일
Your electricity price matters most. The S21 Pro uses about 3.5 kW, around 84 kWh a day, so at high household rates power can eat most or all of the earnings. Owners in expensive-power countries often host abroad or wait for cheaper tariffs. Put your exact rate into the calculator above. Reusing the heat in winter can also change the sums.
Andrei P. · 2026년 10월 5일 · 다른 버전에 대해
is the S21 Pro too loud to run in my house?
AsicProfit SupportAsicProfit · 2026년 10월 6일
For most homes, yes. Bitmain rates it at 76 dBA at full fan speed, with up to 550 CFM of airflow. That is far too loud for living space, and it runs around the clock. Owners put it in a garage, outbuilding or ducted room, or use shrouds to send the hot air somewhere useful. Any enclosure must still let it breathe, or it will overheat and throttle.
Tomas K. · 2026년 10월 4일 · 다른 버전에 대해
Do I need a special outlet for the S21 Pro, and does it come with a cord?
AsicProfit SupportAsicProfit · 2026년 10월 5일
It needs single-phase 220 to 277 V at up to 20 A, so plan a dedicated 240 V circuit. Standard 110 to 120 V outlets will not work. Bitmain includes a C20 power cord with the S21 Pro. Have an electrician fit the right receptacle and breaker for a continuous load of about 3.5 kW. Do not use extension cords or power strips.
Stefan I. · 2026년 10월 3일 · 다른 버전에 대해
What's different between the S21 Pro 234T and 245T?
AsicProfit SupportAsicProfit · 2026년 10월 4일
They are the same machine in different bins, both rated around 15 J/TH. Bitmain's current spec lists 245 TH/s at 3675 W, 234 TH/s at 3510 W and 220 TH/s at 3300 W. The 245T draws a little more power for a little more hashrate, so the better pick depends on the price gap. The calculator above compares them at your electricity price.
Ondrej C. · 2026년 9월 15일 · 다른 버전에 대해
Is the S21 Pro the same as the S21 Hyd but with fans?
AsicProfit SupportAsicProfit · 2026년 9월 16일
Not exactly. Owners comparing the two report that both use the same generation of chips, but the boards and chip counts differ. The S21 Pro is air cooled on single-phase power at about 15 J/TH. The Hyd versions need three-phase power and a water loop, and push more hashrate per unit. Choose based on the cooling and power you can provide.
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