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| Daily | Monthly | Yearly | |
|---|---|---|---|
 Income
|
$7.48 | $224.27 | $2,728.64 |
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|
-$4.21 | -$126.36 | -$1,537.38 |
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|
$3.26 | $97.91 | $1,191.26 |
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Contact UsEvaluate Antminer S21 Pro profitability using current Bitcoin mining conditions and SHA-256 network data. Analyze projected daily earnings, electricity expenses, mining rewards and ROI potential to determine whether this energy-efficient ASIC miner can generate sustainable long-term mining revenue.
Antminer S21 Pro is manufactured By Bitmain And it's mining SHA-256 algorithm which running maximum hashrate of 234Th/s for a power consumption of only 3510W.
| Manufacturer | Bitmain |
|---|---|
| Model | Antminer S21 Pro |
| Size w/o | 450 X 219 X 293mm |
| Size with | 680 X 390 X 450mm |
| Weight Net | 20000g |
| Noise level | 76db |
| Fan(s) | 4 |
| Power | 3510W |
| Voltage | 220-277V |
| Interface | Ethernet |
| Storage Temp. | -20-70 |
| Temperature | -20 - 45 °C |
| Humidity | 10 - 90 % |
| Warranty | 365 Days |
The Bitmain Antminer S21 Pro profitability calculator helps miners estimate potential earnings based on hashrate, electricity rates and current Bitcoin mining conditions. Available in 234TH/s and 245TH/s variants, the Antminer S21 Pro is optimized for SHA-256 mining and designed to deliver reliable Bitcoin mining performance. Daily profits, monthly revenue and annual earnings may vary depending on Bitcoin price fluctuations, mining difficulty and overall network competition.
Understanding mining profitability is essential before investing in ASIC hardware. The Antminer S21 Pro ROI analysis provides valuable insight into electricity consumption, operating expenses and estimated mining rewards. By comparing projected revenue with power costs, miners can assess long-term earning potential and determine whether the Antminer S21 Pro aligns with their investment strategy. Regular profitability monitoring can help optimize mining operations and improve decision-making as market conditions evolve.
The Bitmain Antminer S21 Pro mines on the SHA-256 algorithm at 234 TH/s while drawing 3510 W from the wall. That combination gives it an efficiency of 15.0 J/TH, and efficiency is the figure that matters most when electricity is your largest cost, because it tells you how much energy the machine spends on every terahash of work.
The unit is air cooled and weighs 18.5 kg, so it needs steady airflow and a rack or shelf that can carry its weight. Hashrate, power draw and efficiency together decide how the profit numbers in the calculator above respond as Bitcoin network conditions move.
Running around the clock at 3510 W, the S21 Pro consumes about 84.2 kWh of electricity per day. At a rate of $0.05 per kWh that costs $4.21 per day, and at $0.10 per kWh the daily cost rises to $8.42. Your power price is the one input you control, so even a small difference per kWh changes the outcome noticeably over a full month of mining.
Revenue is the other half of the equation and it depends on network conditions, mainly the Bitcoin price and mining difficulty, which shift every day. Enter your own electricity rate in the calculator above to see current daily and longer term estimates for your exact situation.
Bitmain announced the Antminer S21 Pro on March 28, 2024 and launched it the next day, on March 29, 2024, so it is a recent machine rather than aging hardware. Its 15.0 J/TH efficiency keeps it competitive among current SHA-256 miners, and efficient machines tend to keep earning for longer as network difficulty rises.
The history chart on this page shows how daily profit for this model has trended recently, which is a better guide than any single day of results. Compare the live figures above against your own electricity rate before you decide, because the same miner can be profitable at one power price and marginal at another.
The S21 Pro draws 3510 watts. Multiply that by 24 hours and divide by 1000: 3510 x 24 / 1000 is about 84.2 kWh per day. At $0.05 per kWh that is $4.21 in power cost each day, and at $0.10 per kWh it is $8.42.
It runs at 15.0 J/TH, meaning it uses 15.0 joules of energy for each terahash of SHA-256 computing. Efficiency is the most useful spec for comparing miners because it connects power cost directly to mining output.
The Antminer S21 Pro mines Bitcoin. It is built for the SHA-256 algorithm, and the calculator on this page tracks its Bitcoin profitability using its 234 TH/s hashrate and your electricity rate.
Divide the price shown on this page by the live daily profit from the calculator above. That gives a rough number of days to recover the hardware cost at current conditions. S21 Pro ROI changes as Bitcoin price and difficulty move, so repeat the check with your own electricity rate before buying.
The Bitmain Antminer S21 Pro draws around 3510 W at the wall, so it needs a stable, dedicated power source and a circuit rated to handle that load continuously. Sharing a circuit with other appliances is not recommended, since the miner runs 24/7 at full draw. Before installing, confirm that your electrical setup can safely support a sustained 3510 W load, and have an electrician review the wiring if you are unsure. Because the S21 Pro is an air-cooled unit, no water cooling loop is required as part of the installation.
It can work at home, but only in a properly prepared space. The S21 Pro is an air-cooled unit, which avoids the water loop that hydro miners require, but its 3510 W draw puts it in the high-wattage category. That means it needs serious airflow to move heat out of the room and wiring that can support a continuous load of that size, which typical living areas are rarely set up for. At 18.5 kg it also needs a sturdy shelf or rack. A garage, workshop, or similar prepared space is a better fit than a bedroom or office. Low-wattage air-cooled miners are the more home-friendly option if you cannot dedicate a space to it.
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