Bitmain Antminer S21 Pro Bitcoin Cash Mining Profitability — 2026 Simulation

Live-data simulation of mining Bitcoin Cash with the Bitmain Antminer S21 Pro at current network difficulty and Bitcoin Cash price.

234 TH/s Hashrate 3,510 W Power SHA-256 Algorithm ASIC 15 J/TH Efficiency Live data

Daily Results at $0.07/kWh

Based on Bitcoin Cash price: $210.00 — Network hashrate — Live data from our API

Daily Revenue
$5.27
0.025071 BCH
Daily Electricity
$-5.90
3,510 W × 24 h × $0.07
Daily Profit
$-0.6318
Break-Even
Monthly Profit
$-18.95
30-day estimate
$0.063/kWh
Break-even electricity rate
$235.20
Break-even BCH price at $0.07/kWh
$-230.61
Projected annual profit (constant prices)

Profitability Analysis

The Bitmain Antminer S21 Pro requires electricity below $0.063/kWh to mine Bitcoin Cash profitably — achievable in industrial settings, mining farms, or regions with subsidised energy (Kazakhstan, parts of the US, Paraguay). Standard residential rates are above this threshold.

As a dedicated ASIC, the Bitmain Antminer S21 Pro is permanently optimised for SHA-256 — the algorithm used by Bitcoin and Bitcoin Cash. It cannot be repurposed for other algorithms, so its long-term viability is directly tied to the economics of those specific coins.

At 3,510 watts and an average electricity consumption of 2,527 kWh per month, electricity cost is the single largest variable in profitability. The difference between $0.04/kWh and $0.12/kWh amounts to $202.18 per month in operating margins — which is why electricity rate selection is as important as hardware selection for any serious mining operation.

Profitability at Key Electricity Rates

All figures assume constant Bitcoin Cash price ($210.00) and current network difficulty. Actual results will vary as both change over time.

Electricity Rate Daily Revenue Daily Elec. Cost Daily Profit Monthly Profit Status
$0.04/kWh $5.27 $3.37 $1.90 $56.86 Marginal
$0.06/kWh $5.27 $5.05 $0.2106 $6.32 Marginal
$0.08/kWh $5.27 $6.74 $-1.47 $-44.23 Break-Even
$0.10/kWh $5.27 $8.42 $-3.16 $-94.77 Unprofitable
$0.12/kWh $5.27 $10.11 $-4.84 $-145.31 Unprofitable

Bitmain Antminer S21 Pro — Key Specifications

ManufacturerBitmain
CategoryASIC
AlgorithmSHA-256
Hashrate234 TH/s
Power Draw3,510 W
Efficiency15 J/TH
Noise75 dB(A)
Approx. Price$4,500
Supported CoinsBTC, BCH
Release2024-Q1

→ Full Bitmain Antminer S21 Pro review, pros & cons, and buying guide

How to Mine Bitcoin Cash with the Bitmain Antminer S21 Pro

  1. Acquire and receive the Bitmain Antminer S21 Pro

    Purchase the Bitmain Antminer S21 Pro from an authorised reseller or reputable secondary market. Budget approximately $4,500. Verify the unit is complete and inspect for physical damage before powering on. The unit ships ready to mine — no assembly required beyond power and network connections.

  2. Connect power and network

    Connect the Bitmain Antminer S21 Pro to a dedicated 3510W power supply on a 16 A+ circuit at 220–240 V. Connect an Ethernet cable to your router. Power on the unit and wait 2–3 minutes for it to boot.

  3. Configure your Bitcoin Cash mining pool

    Access the miner's web interface by entering its IP address in your browser (find it via your router's DHCP lease list). Navigate to Miner Configuration and enter your chosen pool stratum URL, your Bitcoin Cash wallet address as the worker username, and 'x' as the password. Recommended pools: ViaBTC, AntPool, F2Pool.

  4. Monitor performance and optimise

    After starting, confirm your hashrate matches the expected 234 TH/s in the pool dashboard (allow 10–15 minutes for the pool to register your worker). Use our live Bitcoin Cash calculator to track daily earnings against your electricity cost. Consider enabling auto-tune mode or third-party firmware (BOS+ for Antminer units) to improve efficiency 5–10%.

Recommended Bitcoin Cash Mining Pools

ViaBTC stratum+tcp://bch.viabtc.com:3333 2% PPLNS
AntPool stratum+tcp://stratum.antpool.com:3333 2.5% FPPS
F2Pool stratum+tcp://bch.f2pool.com:3333 2.5% FPPS

Bitmain Antminer S21 Pro vs. Other Bitcoin Cash Miners

Sorted by efficiency. Daily profit calculated at $0.07/kWh.

Hardware Hashrate Power Efficiency Daily Profit Approx. Price
Bitmain Antminer S21 XP Hyd 473 TH/s 5,676 W 12 J/TH $1.11 $12,000
MicroBT Whatsminer M66S 298 TH/s 3,441 W 11.5 J/TH $0.9241 $5,800
Bitmain Antminer S21 XP 270 TH/s 3,245 W 12 J/TH $0.6234 $6,500
This page
Bitmain Antminer S21 Pro 		234 TH/s 3,510 W 15 J/TH $-0.6318 $4,500
Bitmain Antminer S21 200 TH/s 3,500 W 17.5 J/TH $-1.38 $3,200
MicroBT Whatsminer M60S 186 TH/s 3,441 W 18.5 J/TH $-1.60 $2,800
Canaan Avalon A1566 185 TH/s 3,430 W 18.5 J/TH $-1.60 $2,500
Bitmain Antminer S19k Pro 120 TH/s 2,760 W 23 J/TH $-1.94 $1,400

Run the Live Bitcoin Cash Calculator

This simulation uses cached data updated every 10 minutes. The interactive calculator lets you adjust hashrate, electricity cost, and pool fee in real time.

Open Bitcoin Cash Mining Calculator

Frequently Asked Questions

Is the Bitmain Antminer S21 Pro profitable for Bitcoin Cash mining in 2026?
At $0.07/kWh, the Bitmain Antminer S21 Pro generates approximately $-0.6318 per day mining Bitcoin Cash at current prices ($210.00/coin). The break-even electricity rate is $0.063/kWh. Profitable operation requires below-average electricity costs. Use our live Bitcoin Cash calculator for updated estimates as prices and difficulty change.
What electricity rate does the Bitmain Antminer S21 Pro need to mine Bitcoin Cash profitably?
The Bitmain Antminer S21 Pro breaks even on Bitcoin Cash mining at exactly $0.0625/kWh at current network conditions. At $4 cents/kWh, the daily profit is $1.90; at $8 cents/kWh it is $-1.47. See the full profitability table on this page for all five electricity tiers.
What is the ROI timeline for the Bitmain Antminer S21 Pro mining Bitcoin Cash?
At a hardware acquisition price of approximately $4,500 and $0.07/kWh electricity, the Bitmain Antminer S21 Pro has an estimated ROI of N/A at current prices — the hardware is not yet cash-flow positive at this electricity rate. ROI calculations assume constant Bitcoin Cash price and network difficulty, both of which fluctuate significantly.
How does the Bitmain Antminer S21 Pro compare to other Bitcoin Cash miners?
The Bitmain Antminer S21 Pro mines Bitcoin Cash at 234 TH/s with 15 J/TH efficiency. There are 8 compatible hardware models for Bitcoin Cash in our database. See the comparison table below for a side-by-side efficiency and profitability breakdown of all compatible miners.

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