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Mining profitability
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Bitmain Antminer S21 PRO (234 TH/s)
Antminer S21 PRO Profit Calculator delivers accurate real-time prof…itability insights powered by live network data. Discover how much your Antminer S21 PRO can earn using our advanced ASIC miner calculator. We use current mining reward data, network difficulty, block rewards, and market prices while automatically factoring in your electricity costs to give you a clear and detailed overview of potential daily, monthly, and yearly returns. This powerful Antminer S21 PRO Mining Profit Calculator helps you evaluate profitability across different scenarios, adjust power settings, electricity rates, and hardware configurations so you can make informed decisions about your mining hardware investment. Stay ahead with continuously updated data for the best Antminer S21 PRO Mining Profitability.
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Antminer S21 PRO Profit Calculator delivers accurate real-time profitability insights powered by live network data. Discover how much your Antminer S21 PRO can earn using our advanced ASIC miner calculator. We use current mining reward data, network difficulty, block re…wards, and market prices while automatically factoring in your electricity costs to give you a clear and detailed overview of potential daily, monthly, and yearly returns. This powerful Antminer S21 PRO Mining Profit Calculator helps you evaluate profitability across different scenarios, adjust power settings, electricity rates, and hardware configurations so you can make informed decisions about your mining hardware investment. Stay ahead with continuously updated data for the best Antminer S21 PRO Mining Profitability.
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Released: March 2024
Manufacturer
Realtime Mining Profit
$2.84/day
234TH/s
Hashrate
3550W
Power
Profitability Analysis
Live Data
Here you can see a detailed analysis of miner profitability, updated in real-time.
Current BTC Price
$86,255.00
| Period | Income | Expense | Profit |
|---|---|---|---|
|
Daily
|
$9.65 | $6.82 |
$2.84
|
|
Monthly
|
$289.62 | $204.48 |
$85.14
|
|
Yearly
|
$3,523.68 | $2,487.84 |
$1,035.84
|
Cheapest Price:
$2,430.00
Price per hashrate: $10.38/TH
Estimated ROI:
days
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Overview
Bitmain Antminer S21 PRO (234TH/s) — Hardware Overview
Learn more about this ASIC miner, including its specifications, performance, energy consumption, and profitability.
The Bitmain Antminer S21 Pro presents itself as a machine of utilitarian poetry: engineered for the SHA-256 algorithm, it pushes 234 terahashes per se…cond while drawing roughly 3,531 watts and achieving an energy efficiency of about 15 joules per terahash, a balance of brute computation and relative thrift that speaks to both professional operations and ambitious backyard rigs; it is purpose-built to mine SHA-256 coins such as Bitcoin (BTC), Bitcoin Cash (BCH) and Bitcoin SV (BSV), and its steady hashrate and efficiency make it a compelling choice when you map potential yield against running costs. Think beyond the raw numbers: sustained performance depends on adequate cooling and ventilation, stable electrical supply and suitable power infrastructure, firmware and pool configuration, and the ongoing maintenance and lifecycle of ASICs - all factors that shape real-world uptime and hash-delivered revenue. Use a crypto miner profit calculator to translate hashrate, power draw and pool fees into daily, monthly and yearly estimates while adjusting for your region’s electricity cost and different energy-rate scenarios; compare outcomes for low-cost renewable-heavy grids versus higher-rate urban supplies, consider heat reuse or colocated cooling to reclaim waste energy, and weigh solo versus pooled mining for variance and reward cadence. Remember the moving parts that alter returns: network difficulty, block rewards and fee dynamics, pool luck, and the timeline for hardware depreciation; in practice the S21 Pro’s 234TH/s at ~15 J/TH can reduce per-hash emissions compared with older units but still consumes significant power, so site selection, duty cycles and potential regulatory or grid constraints matter as much as raw efficiency. Deploy it where kilowatts are responsibly sourced or where waste heat can be turned into serviceable warmth, keep firmware and monitoring tight to preserve uptime, and run scenario analyses across differing electricity rates to judge cost-effectiveness and expected returns before committing capital - the S21 Pro is less a simple appliance and more an engine that demands a designed ecosystem of power, cooling, maintenance and strategic planning to transform terahashes into sustainable, reliable mining operations.
Read more Read less
The Bitmain Antminer S21 Pro presents itself as a machine of utilitarian poetry: engineered for the SHA-256 algorithm, it pushes 234 terahashes per second while drawing roughly 3,531 watts and achieving an energy efficiency of about 15 joules per terahash, a balance of brute computation and relative thrift that speaks to both professional operations and ambitious backyard rigs; it is purpose-built to mine SHA-256 coins such as Bitcoin (BTC), Bitcoin Cash (BCH) and Bitcoin SV (BSV), and its steady hashrate and efficiency make it a compelling choice when you map potential yield against running costs. Think beyond the raw numbers: sustained performance depends on adequate cooling and ventilation, stable electrical supply and suitable power infrastructure, firmware and pool configuration, and… the ongoing maintenance and lifecycle of ASICs - all factors that shape real-world uptime and hash-delivered revenue. Use a crypto miner profit calculator to translate hashrate, power draw and pool fees into daily, monthly and yearly estimates while adjusting for your region’s electricity cost and different energy-rate scenarios; compare outcomes for low-cost renewable-heavy grids versus higher-rate urban supplies, consider heat reuse or colocated cooling to reclaim waste energy, and weigh solo versus pooled mining for variance and reward cadence. Remember the moving parts that alter returns: network difficulty, block rewards and fee dynamics, pool luck, and the timeline for hardware depreciation; in practice the S21 Pro’s 234TH/s at ~15 J/TH can reduce per-hash emissions compared with older units but still consumes significant power, so site selection, duty cycles and potential regulatory or grid constraints matter as much as raw efficiency. Deploy it where kilowatts are responsibly sourced or where waste heat can be turned into serviceable warmth, keep firmware and monitoring tight to preserve uptime, and run scenario analyses across differing electricity rates to judge cost-effectiveness and expected returns before committing capital - the S21 Pro is less a simple appliance and more an engine that demands a designed ecosystem of power, cooling, maintenance and strategic planning to transform terahashes into sustainable, reliable mining operations.
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Discover Which Coins This Miner Can Mine
Explore the cryptocurrencies that can be mined using Bitmain Antminer S21 PRO (234TH/s), including detailed profitability.
Currency Converter
Calculate the mineable coins to any currency.
Rate is for reference only. Updated just now.
| Coin | Income/Day | Profit/Day |
|---|---|---|
|
$9.65
$
0.00011192
|
$2.84
$
0.00003290
|
|
|
$9.59
$
0.00011129
|
$2.77
$
0.00003216
|
|
|
$8.89
$
0.02820029
|
$2.07
$
0.00657661
|
|
|
$7.04
$
17.10
|
$0.23
$
0.55188713
|
Historical Mining Performance
Bitmain Antminer S21 PRO (234TH/s) performance trends over weekly, monthly, and yearly timeframes.
Historical Profitability
View the historical income and profit trends for this miner.
Where to Buy?
Explore current market availability, trusted suppliers and the latest pricing and stock for this ASIC miner. V…erified vendors are clearly marked with a green checkmark. Verified Vendor means we have reviewed the company registration and verified their control over at least one company asset, along with other eligibility criteria. Regardless, offers are provided by third-party sellers, we assume no liability. In case of serious issues, please contact us so we can review their eligibility to be listed on our pages.
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Explore current market availability, trusted suppliers and the latest pricing and stock for this ASIC miner. Verified vendors are clearly marked with a green checkmark. Verified Vendor means we have reviewed the company registration and verified their control… over at least one company asset, along with other eligibility criteria. Regardless, offers are provided by third-party sellers, we assume no liability. In case of serious issues, please contact us so we can review their eligibility to be listed on our pages.
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| Vendor | Price | Offer |
|---|---|---|
|
Bitmain Antminer S21 PRO (234TH/s)
|
$2,340
+ $90 shipping
$10.38/TH
|
SHA-256 Miner Generations
Evolution of cryptocurrency mining hardware throughout the years, with the current generation highlighted for reference.
Gen 1
33 miners
Generation 1
33 miners
Gen 2
33 miners
Generation 2
33 miners
Gen 3
33 miners
Generation 3
33 miners
Gen 4
34 miners
Generation 4
34 miners
Gen 5
34 miners
Generation 5
34 miners
Gen 6
34 miners
Generation 6
34 miners
Gen 7
34 miners
Generation 7
34 miners
Gen 8
34 miners
Generation 8
34 minersGeneration 1
33 minersGeneration 2
33 minersGeneration 3
33 minersGeneration 4
34 minersGeneration 5
34 minersGeneration 6
34 minersGeneration 7
34 minersGeneration 8
34 miners
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Deep dive
Bitmain Antminer S21 PRO — In Detail
Bitmain Antminer S21 PRO (234TH/s) — a closer look at the hardware and how it performs.
Listen close as if from the bridge of a silent cruiser: the Bitmain Antminer S21 Pro arrives as a purpose-built workhorse for SHA-256 mining, deliveri…ng a hefty 234 terahashes per second while drawing roughly 3,531 watts and running at an energy envelope near 15 joules per terahash, a combination that positions it for serious professional deployments targeting Bitcoin, Bitcoin Cash and Bitcoin SV; under that polished chassis beats an optimized air-cooling architecture and engineered heat-dissipation channels that keep the rig steady under continuous load, while bespoke 5nm ASIC dies squeeze efficiency from every cycle to improve power-to-hash economics for large-scale farms. Its firmware carries an adaptive auto-tuning routine that tweaks chip behavior in real time to stabilize hashrates and reduce oscillations, and robustness is built into the hardware with reinforced connectors, hardened PCB layouts and a redesigned control board that elevates error detection and simplifies diagnostics and repair, all factors that extend service life and reduce mean time to recovery. But numbers are only part of the navigation: real-world returns hinge on adequate ventilation and cooling capacity, reliable electrical feeds and properly rated power infrastructure, careful firmware and pool configuration, and disciplined maintenance and lifecycle management to preserve uptime and delivered hash - plan for network difficulty shifts, evolving block rewards and fee conditions, variance from pooled mining versus solo attempts, and hardware depreciation when modeling outcomes. Think strategically about site selection and energy sourcing - low-carbon or low-cost grids change the margin math, colocated setups or heat-reuse schemes can reclaim waste energy and improve overall project economics, and duty-cycle control or staged rollouts can mitigate grid constraints and regulatory risk. Monitor telemetry closely, run scenario-based profitability models across varying electricity rates and pool fee structures, and treat the S21 Pro not as a plug-and-play appliance but as an integrated engine that demands power, cooling, maintenance and governance to reliably turn terahashes into sustainable mining yield.
Read more Read less
Listen close as if from the bridge of a silent cruiser: the Bitmain Antminer S21 Pro arrives as a purpose-built workhorse for SHA-256 mining, delivering a hefty 234 terahashes per second while drawing roughly 3,531 watts and running at an energy envelope near 15 joules per terahash, a combination that positions it for serious professional deployments targeting Bitcoin, Bitcoin Cash and Bitcoin SV; under that polished chassis beats an optimized air-cooling architecture and engineered heat-dissipation channels that keep the rig steady under continuous load, while bespoke 5nm ASIC dies squeeze efficiency from every cycle to improve power-to-hash economics for large-scale farms. Its firmware carries an adaptive auto-tuning routine that tweaks chip behavior in real time to stabilize hashrates a…nd reduce oscillations, and robustness is built into the hardware with reinforced connectors, hardened PCB layouts and a redesigned control board that elevates error detection and simplifies diagnostics and repair, all factors that extend service life and reduce mean time to recovery. But numbers are only part of the navigation: real-world returns hinge on adequate ventilation and cooling capacity, reliable electrical feeds and properly rated power infrastructure, careful firmware and pool configuration, and disciplined maintenance and lifecycle management to preserve uptime and delivered hash - plan for network difficulty shifts, evolving block rewards and fee conditions, variance from pooled mining versus solo attempts, and hardware depreciation when modeling outcomes. Think strategically about site selection and energy sourcing - low-carbon or low-cost grids change the margin math, colocated setups or heat-reuse schemes can reclaim waste energy and improve overall project economics, and duty-cycle control or staged rollouts can mitigate grid constraints and regulatory risk. Monitor telemetry closely, run scenario-based profitability models across varying electricity rates and pool fee structures, and treat the S21 Pro not as a plug-and-play appliance but as an integrated engine that demands power, cooling, maintenance and governance to reliably turn terahashes into sustainable mining yield.
Read more Read less
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Full spec sheet
Technical Specifications
Bitmain Antminer S21 PRO (234Th) — full hardware specifications and mining capabilities.
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Basic Information
Brand
Bitmain
Model
Antminer S21 PRO
Release Date
March 2024
Algorithm
SHA-256
Performance
Hashrate
234 TH/s
Power Consumption
3550W
Noise Level
75db
Voltage
100-240V
Physical Dimensions
Size
400 x 195 x 290mm
Weight
20000gkg
Interface
Ethernet
Humidity
5 - 95 %
Temperature
5 - 45 °C
Cooling
Air
Mineable Cryptocurrencies
BTC
Bitcoin
BCH
Bitcoin Cash
FB
Fractal Bitcoin
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The algorithm
Algorithm Information: SHA-256
SHA-256 — what this algorithm is and how it works.
SHA-256 is a cryptographic hash function. NiceHash relies on it for proof-of-work consensus. This algorithm processes input data of any length and produces a fixed hash value, ensuring security and integrity in the mining process.
Crypto Mining Pools
Connect to the most reliable mining pools and maximize your crypto mining efficiency with optimized uptime and profitability.
| Pool | Fee & Payment | Connect |
|---|---|---|
|
|
Reseller | |
|
|
4% FPPS
2% PPLNS
|
|
|
|
4% PPS+
2% PPLNS
|
|
|
|
4% FPPS
2% PPLNS
|
|
|
|
1.5% FPPS | |
|
|
3% PPS+ | |
|
|
2.5% |
User Reviews
See what users are saying about this miner.
No Reviews Yet
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Answers
Bitmain
Frequently Asked Questions
Everything you need to know about the Bitmain Antminer S21 PRO (234Th)
The efficiency of the Bitmain Antminer S21 PRO 234TH/s is 15.17 J/TH with a hashrate of 234TH/s and power consumption of 3550W.
The Bitmain Antminer S21 PRO 234TH/s consumes $6.82 daily, $204.48 monthly, and $2,487.84 yearly in electricity costs.
The Bitmain Antminer S21 PRO 234TH/s uses 3550W of electricity.
The Antminer S21 PRO is manufactured by Bitmain.
The Bitmain Antminer S21 PRO has a hashrate of 234TH/s using the SHA-256 algorithm.
The Bitmain Antminer S21 PRO 234TH/s can mine the following cryptocurrencies:
NiceHash (BTC)
Bitcoin (BTC)
Bitcoin Cash (BCH)
Fractal Bitcoin (FB)
NiceHash (BTC)
Bitcoin (BTC)
Bitcoin Cash (BCH)
Fractal Bitcoin (FB)
As of October 2, 2026 with an electricity cost of $0.08 the Bitmain Antminer S21 PRO 234TH/s generates $2.84 daily, $85.14 monthly, and $1,035.84 yearly.
This makes the Bitmain Antminer S21 PRO 234TH/s a profitable choice for mining.
This makes the Bitmain Antminer S21 PRO 234TH/s a profitable choice for mining.
Based on our real-time ASIC mining profit calculation, the Bitmain Antminer S21 PRO is currently most profitable mining NiceHash at your electricity rate of $0.080/kWh. This can change as coin prices and network difficulty shift, so check the Mineable Coins table above for the latest ranking.
This ASIC mining profit calculation for the Bitmain Antminer S21 PRO uses live cryptocurrency prices, current network difficulty, and block rewards for every supported coin, combined with your custom electricity rate. Figures update automatically as network conditions change, so the profitability shown reflects current conditions rather than a static estimate.
NiceHash is a hashpower marketplace, not a traditional mining pool — instead of mining a coin directly, you sell your Bitmain Antminer S21 PRO hashrate to buyers and get paid in Bitcoin. Compare the NiceHash row against direct-mining rows in the Mineable Coins table above: whichever shows the higher Profit/Day at your electricity rate is currently the better option for this specific miner.
Based on current data, the estimated ROI for the Bitmain Antminer S21 PRO is approximately 856 days, assuming a purchase price of $2,430.00 and daily profits of $2.84. This estimate assumes stable coin prices and network difficulty — actual ASIC mining profit calculation results will shift as those change.
The Bitmain Antminer S21 PRO is available starting at $2,430.00 from our verified vendor listings above. Prices and stock change frequently, so check the vendor offers section for the latest availability.
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