Bitmain Antminer S21 PRO (234Th)

Antminer S21 PRO profitability insights powered by real-time data: Discover how much your Antminer S21 PRO can earn using our advanced ASIC miner calculator. We use live mining reward data and automatically factor in electricity costs, giving you a clear overview of your potential daily, monthly, and yearly returns.

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Released: March 2024
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Manufactured by
Bitmain
Bitmain Antminer S21 PRO (234Th)
Realtime Mining Profit
$3.76/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 $101,589.00
Period Income Expense Profit
Daily
$10.58 $6.82
$3.76
Monthly
$317.28 $204.48
$112.80
Yearly
$3,860.24 $2,487.84
$1,372.40
No Offer available

About the Bitmain Antminer S21 PRO (234TH/s)

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 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.

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
$9.88 $
0.00009727 Bitcoin Logo
$3.07 $
0.00003018 Bitcoin Logo
$9.83 $
0.00009708 Bitcoin Logo
$3.01 $
0.00002976 Bitcoin Logo
$9.64 $
0.01913261 Bitcoin Cash Logo
$2.83 $
0.00560773 Bitcoin Cash Logo
$10.57 $
26.36 Fractal Bitcoin Logo
$3.76 $
9.37 Fractal Bitcoin Logo

Historical Mining Performance

View the performance trends of Bitmain Antminer S21 PRO (234TH/s) over weekly, monthly, and yearly timeframes.

Historical Profitability

View the historical income and profit trends for this miner.

SHA-256 Miner Generations

Evolution of cryptocurrency mining hardware throughout the years, with the current generation highlighted for reference.

More Information about the

Learn more about the Bitmain Antminer S21 PRO (234TH/s)

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 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.

Where to Buy?

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There are currently no offers for this miner. Please check back later.

Technical Specifications

Detailed hardware specifications and mining capabilities for Bitmain Antminer S21 PRO (234Th)

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
75dbdB
Voltage
100-240VV

Physical Dimensions

Size
400 x 195 x 290mmmm
Weight
20000gkg
Interface
Ethernet
Humidity
5 - 95 %%
Cooling
Air

Mineable Cryptocurrencies

Bitcoin
BTC
Bitcoin
Bitcoin Cash
BCH
Bitcoin Cash
Fractal Bitcoin
FB
Fractal Bitcoin

Algorithm Information: SHA-256

Learn more about the SHA-256 algorithm and how it works.

SHA-256 is a cryptographic hash function that serves as the backbone of Fractal Bitcoin proof-of-work consensus mechanism. 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
NiceHash pool logo
Reseller
F2Pool pool logo
4% FPPS 2% PPLNS
ViaBTC pool logo
4% PPS+ 2% PPLNS
AntPool pool logo
4% FPPS 2% PPLNS
EMCD pool logo
1.5% FPPS
Kryptex pool logo
3% PPS+
BinancePool pool logo
2.5%

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Frequently Asked Questions

Everything you need to know about the Bitmain Antminer S21 PRO (234Th)

How efficient is the Bitmain Antminer S21 PRO 234TH/s?

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.

What are the electricity costs for the Bitmain Antminer S21 PRO 234TH/s (USD)?

The Bitmain Antminer S21 PRO 234TH/s consumes $6.82 daily, $204.48 monthly, and $2,487.84 yearly in electricity costs.

How much power does the Bitmain Antminer S21 PRO 234TH/s use?

The Bitmain Antminer S21 PRO 234TH/s uses 3550W of electricity.

Who manufactures the Antminer S21 PRO?

The Antminer S21 PRO is manufactured by Bitmain.

What is the hashrate of the Bitmain Antminer S21 PRO?

The Bitmain Antminer S21 PRO has a hashrate of 234TH/s using the SHA-256 algorithm.

Which cryptocurrencies can be mined with the Bitmain Antminer S21 PRO 234TH/s?

The Bitmain Antminer S21 PRO 234TH/s can mine the following cryptocurrencies:

NiceHash NiceHash (BTC) Bitcoin Bitcoin (BTC) Bitcoin Cash Bitcoin Cash (BCH) Fractal Bitcoin Fractal Bitcoin (FB)

Is the Bitmain Antminer S21 PRO 234TH/s a profitable miner?

As of November 12, 2025 with an electricity cost of $0.08 the Bitmain Antminer S21 PRO 234TH/s generates $3.76 daily, $112.80 monthly, and $1,372.40 yearly.

This makes the Bitmain Antminer S21 PRO 234TH/s a profitable choice for mining.
BTC $101,250.00 ↘1.95%
ALPH $0.138700 ↗6.22%
KAS $0.048320 ↗0.07%
ETC $15.22 ↘1.19%
LTC $97.85 ↘0.57%
DOGE $0.169100 ↘0.4%
RXD $0.000171 ↗0.76%
BCH $503.96 ↗0.33%
CKB $0.003153 ↘1.32%
HNS $0.003381 ↘0.67%
KDA $0.040390 ↗22.35%
SC $0.001940 ↘1.01%
ALEO $0.223500 ↘2.22%
FB $0.401100 ↗0.93%
XMR $384.76 ↗3.49%
SCP $0.028080 ↘4.96%
BELLS $0.179100 ↘1.94%
XTM $0.003997 ↗3.59%
ZEC $491.36 ↗6.82%
BTC $101,250.00 ↘1.95%
ALPH $0.138700 ↗6.22%
KAS $0.048320 ↗0.07%
ETC $15.22 ↘1.19%
LTC $97.85 ↘0.57%
DOGE $0.169100 ↘0.4%
RXD $0.000171 ↗0.76%
BCH $503.96 ↗0.33%
CKB $0.003153 ↘1.32%
HNS $0.003381 ↘0.67%
KDA $0.040390 ↗22.35%
SC $0.001940 ↘1.01%
ALEO $0.223500 ↘2.22%
FB $0.401100 ↗0.93%
XMR $384.76 ↗3.49%
SCP $0.028080 ↘4.96%
BELLS $0.179100 ↘1.94%
XTM $0.003997 ↗3.59%
ZEC $491.36 ↗6.82%
BTC $101,250.00 ↘1.95%
ALPH $0.138700 ↗6.22%
KAS $0.048320 ↗0.07%
ETC $15.22 ↘1.19%
LTC $97.85 ↘0.57%
DOGE $0.169100 ↘0.4%
RXD $0.000171 ↗0.76%
BCH $503.96 ↗0.33%
CKB $0.003153 ↘1.32%
HNS $0.003381 ↘0.67%
KDA $0.040390 ↗22.35%
SC $0.001940 ↘1.01%
ALEO $0.223500 ↘2.22%
FB $0.401100 ↗0.93%
XMR $384.76 ↗3.49%
SCP $0.028080 ↘4.96%
BELLS $0.179100 ↘1.94%
XTM $0.003997 ↗3.59%
ZEC $491.36 ↗6.82%