Bitmain Antminer S21 Pro (245TH)

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.

Released: November 2025
Manufactured by
Bitmain
Bitmain Antminer S21 Pro (245TH)
Realtime Mining Profit
$1.07/day
245TH/s
Hashrate
3510W
Power

Profitability Analysis

Live Data

Here you can see a detailed analysis of miner profitability, updated in real-time.

Current BTC Price $63,621.00
Period Income Expense Profit
Daily
$7.81 $6.74
$1.07
Monthly
$234.15 $202.18
$31.98
Yearly
$2,848.85 $2,459.81
$389.04
No Offer available
* Overview

About the Bitmain Antminer S21 Pro (245TH/s)

Learn more about this ASIC miner, including its specifications, performance, energy consumption, and profitability.

The Bitmain Antminer S21 Pro (245Th) is a high-performance SHA-256 ASIC miner developed specifically for Bitcoin mining, delivering a maximum hashrate of 245Th/s. Released in November 2025, the miner combines proven Bitmain engineering with strong energy efficiency, achieving 15j/Th while maintaining dependable processing power for professional mining operations. With power consumption rated at 3675W and a compact footprint of 400 x 195 x 290mm, the S21 Pro is designed to maximize computational output while fitting efficiently into existing mining infrastructures. Equipped with dual cooling fans and Ethernet connectivity, the unit provides stable operation and reliable network communication, helping miners maintain consistent performance across extended mining cycles.

Discover Which Coins This Miner Can Mine

Explore the cryptocurrencies that can be mined using Bitmain Antminer S21 Pro (245TH/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
$7.81 $
0.00012268 Bitcoin Logo
$1.07 $
0.00001675 Bitcoin Logo
$7.74 $
0.00012183 Bitcoin Logo
$1.00 $
0.00001569 Bitcoin Logo
$7.60 $
0.03425036 Bitcoin Cash Logo
$0.86 $
0.00387992 Bitcoin Cash Logo
$6.96 $
20.26 Fractal Bitcoin Logo
$0.22 $
0.65146299 Fractal Bitcoin Logo

Historical Mining Performance

View the performance trends of Bitmain Antminer S21 Pro (245TH/s) over weekly, monthly, and yearly timeframes.

Historical Profitability

View the historical income and profit trends for this miner.

Where to Buy?

Trusted vendors and current market availability, showcasing verified suppliers offering this ASIC miner along with their latest pricing and stock information.

No Offers Available

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

SHA-256 Miner Generations

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

Generation 1

31 miners

Generation 2

31 miners

Generation 3

31 miners

Generation 4

31 miners

Generation 5

31 miners

Generation 6

31 miners

Generation 7

32 miners

Generation 8

32 miners
* Deep dive

More Information about the Bitmain Antminer S21 Pro

Learn more about the Bitmain Antminer S21 Pro (245TH/s)

The Antminer S21 Pro continues to be an attractive option for operators seeking a balance between performance, efficiency, and deployment flexibility. Its air-cooled design simplifies installation compared to liquid-cooled systems while still supporting demanding workloads associated with continuous Bitcoin mining. Operating at a noise level of 75dB, it is best suited for dedicated mining environments where sustained throughput is a priority. The miner functions within temperatures ranging from 5°C to 45°C and humidity levels between 5% and 95%, enabling reliable operation across varied conditions. For miners comparing SHA-256 hardware, the S21 Pro offers a proven combination of substantial 245Th/s hashrate, efficient energy usage, and dependable long-term performance that supports competitive mining profitability.

* Full spec sheet

Technical Specifications

Detailed hardware specifications and mining capabilities for Bitmain Antminer S21 Pro (245TH)

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Basic Information

Brand
Bitmain
Model
Antminer S21 Pro
Release Date
November 2025
Algorithm
SHA-256

Performance

Hashrate
245 TH/s
Power Consumption
3510W
Noise Level
75db
Voltage
220V

Physical Dimensions

Size
400 x 195 x 290mm
Weight
13.5kg
Interface
Ethernet
Humidity
5 - 95 %
Temperature
5 - 45 °C
Cooling
Air

Mineable Cryptocurrencies

Bitcoin
BTC
Bitcoin
Bitcoin Cash
BCH
Bitcoin Cash
Fractal Bitcoin
FB
Fractal Bitcoin
* The algorithm

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 NiceHash 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%

User Reviews

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* Answers Bitmain

Frequently Asked Questions

Everything you need to know about the Bitmain Antminer S21 Pro (245TH)

The efficiency of the Bitmain Antminer S21 Pro 245TH/s is 14.33 J/TH with a hashrate of 245TH/s and power consumption of 3510W.

The Bitmain Antminer S21 Pro 245TH/s consumes $6.74 daily, $202.18 monthly, and $2,459.81 yearly in electricity costs.

The Bitmain Antminer S21 Pro 245TH/s uses 3510W of electricity.

The Antminer S21 Pro is manufactured by Bitmain .

The Bitmain Antminer S21 Pro has a hashrate of 245TH/s using the SHA-256 algorithm.

The Bitmain Antminer S21 Pro 245TH/s can mine the following cryptocurrencies:

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

As of July 17, 2026 with an electricity cost of $0.08 the Bitmain Antminer S21 Pro 245TH/s generates $1.07 daily, $31.98 monthly, and $389.04 yearly.

This makes the Bitmain Antminer S21 Pro 245TH/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.

This miner is not currently listed by any of our verified vendors. You can still use the profitability figures on this page to plan ahead for when new listings appear.
BTC $63,495.99 ↘1.19%
ALPH $0.036980 ↗0.04%
KAS $0.027960 ↘0.88%
ETC $6.90 ↘0.19%
LTC $44.94 ↗1.12%
DOGE $0.072020 ↘0.48%
RXD $0.000075 ↗1.1%
BCH $221.90 ↗0.98%
CKB $0.000896 ↘0.15%
HNS $0.001253 ↗2.31%
KDA $0.005387 ↗0.36%
SC $0.000605 ↗0.27%
ALEO $0.038140 ↗1.02%
FB $0.343700 ↗0.75%
XMR $332.71 ↗0.99%
SCP $0.014330 ↗8.1%
BELLS $0.109200 ↗0%
XTM $0.000334 ↗3.53%
ZEC $529.30 ↘2.41%
BTC $63,495.99 ↘1.19%
ALPH $0.036980 ↗0.04%
KAS $0.027960 ↘0.88%
ETC $6.90 ↘0.19%
LTC $44.94 ↗1.12%
DOGE $0.072020 ↘0.48%
RXD $0.000075 ↗1.1%
BCH $221.90 ↗0.98%
CKB $0.000896 ↘0.15%
HNS $0.001253 ↗2.31%
KDA $0.005387 ↗0.36%
SC $0.000605 ↗0.27%
ALEO $0.038140 ↗1.02%
FB $0.343700 ↗0.75%
XMR $332.71 ↗0.99%
SCP $0.014330 ↗8.1%
BELLS $0.109200 ↗0%
XTM $0.000334 ↗3.53%
ZEC $529.30 ↘2.41%
BTC $63,495.99 ↘1.19%
ALPH $0.036980 ↗0.04%
KAS $0.027960 ↘0.88%
ETC $6.90 ↘0.19%
LTC $44.94 ↗1.12%
DOGE $0.072020 ↘0.48%
RXD $0.000075 ↗1.1%
BCH $221.90 ↗0.98%
CKB $0.000896 ↘0.15%
HNS $0.001253 ↗2.31%
KDA $0.005387 ↗0.36%
SC $0.000605 ↗0.27%
ALEO $0.038140 ↗1.02%
FB $0.343700 ↗0.75%
XMR $332.71 ↗0.99%
SCP $0.014330 ↗8.1%
BELLS $0.109200 ↗0%
XTM $0.000334 ↗3.53%
ZEC $529.30 ↘2.41%