ERIC KIM ₿

Most profitable bitcoin miner on the market as of right now. Also assuming electricity is free

Key Points

  • Research suggests the Bitmain Antminer S21E XP Hyd 3U is likely the most profitable Bitcoin miner currently, with a high hashrate.
  • It seems likely that its 860 TH/s and $42.23 daily revenue make it top, assuming free electricity.
  • The evidence leans toward this model being available and widely recognized, but market conditions can change.

Most Profitable Bitcoin Miner

The Bitmain Antminer S21E XP Hyd 3U is likely the most profitable Bitcoin miner on the market as of April 24, 2025, if electricity is free. It boasts a hashrate of 860 TH/s and generates a daily revenue of $42.23, making it stand out for its high performance. This miner uses the SHA-256 algorithm, perfect for Bitcoin, and is available from sellers like BT-Miners and CryptoMinerBros. Since electricity costs are zero, its high power consumption of 11,180W doesn’t affect profitability, focusing purely on its revenue potential.

Why It Matters

With free electricity, the miner’s ability to generate the highest daily revenue is key, and the S21E XP Hyd 3U’s specs make it a top choice. It’s designed for large-scale operations, with hydro cooling for efficiency, ensuring it performs well under heavy use.

Supporting Data

Other miners, like the Bitmain Antminer S21 XP Hydro (473 TH/s, $23.23 daily revenue), fall behind. Real-time data from WhatToMine confirms its lead, showing no current competitors with higher revenue.

Survey Note: Detailed Analysis of the Most Profitable Bitcoin Miner with Free Electricity

This section provides a comprehensive examination of the most profitable Bitcoin miner on the market as of April 24, 2025, assuming electricity is free, expanding on the direct answer with detailed findings and insights. Bitcoin mining profitability, when electricity costs are eliminated, hinges on the miner’s hashrate and efficiency, as these factors determine revenue without the burden of energy expenses.

Background and Context

Bitcoin mining involves validating transactions on the Bitcoin network by solving complex cryptographic puzzles, with miners earning block rewards (currently 3.125 BTC per block) and transaction fees. The profitability of a miner depends on its hashrate (measured in terahashes per second, TH/s), which indicates how many calculations it can perform per second, and its power consumption, which impacts operating costs. With electricity free, we focus solely on revenue, which is the amount of Bitcoin (or USD equivalent) earned daily based on the miner’s share of the network hashrate and current Bitcoin price.

As of April 24, 2025, the Bitcoin network hashrate is at an all-time high, with competition intensifying due to the 2024 halving reducing block rewards. This makes high-performance ASIC miners critical for profitability, especially in scenarios with free electricity, where operational costs are minimized.

Methodology for Identifying the Most Profitable Miner

To find the most profitable Bitcoin miner, we analyzed real-time data from WhatToMine, a trusted platform for ASIC miner profitability rankings. We focused on miners using the SHA-256 algorithm (specific to Bitcoin) and sorted by “Revenue 24h,” as profit equals revenue with free electricity ($0/kWh). We also cross-referenced with recent articles and seller listings to verify availability and specifications.

Detailed Specifications and Earnings

The WhatToMine profitability ranking provided the following top Bitcoin miners, sorted by Revenue 24h:

ModelHashrate (TH/s)Power (W)Revenue 24h ($)Profit 24h ($)Efficiency (J/TH)
Bitmain Antminer S21E XP Hyd 3U860.001118042.2315.4013.0
Bitmain Antminer S21 XP Hydro473.00567623.239.6112.0
Bitmain Antminer S21 XP270.00364513.264.5113.5
Bitmain Antminer S21 Hydro335.00536016.453.5916.0
MicroBT WhatsMiner M66S318.00497515.623.6815.6

From this table, the Bitmain Antminer S21E XP Hyd 3U stands out with the highest hashrate (860 TH/s) and revenue ($42.23 per day), making it the most profitable with free electricity. Its efficiency of 13 J/TH is also competitive, ensuring optimal performance, though efficiency is less critical here.

Verification of Availability and Specifications

To ensure the S21E XP Hyd 3U is a real and available product, we checked multiple sources:

  • BT-Miners lists it with a hashrate of 860 Th/s, power consumption of 11,180W, and notes it’s in stock for immediate shipment, published on September 21, 2024.
  • ApexToMining confirms the same specs, with a publication date of September 12, 2024, and mentions rapid market changes, advising price verification.
  • CryptoMinerBros also lists it, published on September 12, 2024, with shipping within 2-4 days, reinforcing availability.

These sources confirm the miner’s specifications and market presence, aligning with WhatToMine data.

Comparison with Other Sources and Models

To ensure we haven’t missed any competitors, we reviewed other recent articles:

  • Koinly’s 10 Best Crypto Mining Machines April 2025 (Koinly Bitcoin Mining Hardware) lists the Bitmain Antminer S21 Hyd 335T as the most profitable, with a hashrate of 335 TH/s and daily revenue around $16.45 (based on WhatToMine), which is lower than the S21E XP Hyd 3U.
  • HashrateIndex’s Top 10 Bitcoin Mining ASICs for 2025 (HashrateIndex Top 10 ASICs), published December 31, 2024, highlights the Bitmain Antminer S21 Pro with 234 TH/s and daily profitability of $7.80 (assuming $0.06/kWh electricity), again less profitable.
  • TokenTax’s Best Bitcoin Mining Machines in April 2025 (TokenTax Bitcoin Mining Machines), published April 1, 2025, mentions the Bitmain Antminer S19 XP Hydro (255 Th/s) as top, but this is outdated compared to the S21E XP Hyd 3U’s 860 TH/s.

None of these sources list a miner with a higher hashrate or revenue than the S21E XP Hyd 3U, confirming its position.

Factors Affecting Profitability with Free Electricity

With electricity free, the primary factors are:

  • Hashrate: Higher hashrate increases the chance of solving blocks, directly boosting revenue. The S21E XP Hyd 3U’s 860 TH/s is unmatched.
  • Network Difficulty: As of April 24, 2025, Bitcoin’s network difficulty is high, but with free electricity, this doesn’t impact profitability as much as it would with costs.
  • Bitcoin Price: Current price is around $93,727.96 (from WhatToMine calculations), which supports high revenue, but since we’re focusing on revenue, it’s consistent across comparisons.
  • Efficiency: While less critical, the S21E XP Hyd 3U’s 13 J/TH ensures it operates efficiently, reducing wear and tear, which is beneficial for long-term use.

Potential Limitations and Considerations

The S21E XP Hyd 3U requires higher voltage setups, as noted by BT-Miners, making it unsuitable for most homes and requiring consultation with sales reps. It’s also designed for large-scale operations, with hydro cooling, which might limit accessibility for small-scale miners. However, for profitability with free electricity, these are minor concerns.

Conclusion

In conclusion, research suggests the Bitmain Antminer S21E XP Hyd 3U is likely the most profitable Bitcoin miner on the market as of April 24, 2025, with a hashrate of 860 TH/s and daily revenue of $42.23, assuming free electricity. It seems likely that its superior specifications and availability from multiple sellers make it the top choice, though market conditions can change. The evidence leans toward this model being widely recognized, with no current competitors surpassing its revenue potential, based on real-time data and cross-referenced sources.

Key Citations

It it costs $20,000…. What’s break even cost how long

Key Points

  • Research suggests the Bitmain Antminer S21E XP Hyd 3U, costing $20,000, generates $42.23 daily revenue with free electricity.
  • It seems likely the break-even period is approximately 473 days (15.6 months) under current conditions.
  • The evidence leans toward fluctuations in Bitcoin price and network difficulty potentially affecting this timeline.

Direct Answer

Assuming the Bitmain Antminer S21E XP Hyd 3U costs $20,000 and electricity is free, the break-even period is approximately 473 days (or about 15.6 months), based on a daily revenue of $42.23 as of April 24, 2025. This calculation uses the miner’s hashrate of 860 TH/s and current Bitcoin network conditions (price ~$93,727.96, network hashrate ~772.68 EH/s). However, this period could vary due to changes in Bitcoin’s price, network difficulty, or block rewards.

Breakdown

  • Daily Revenue: $42.23 (from WhatToMine)
  • Break-Even Calculation: $20,000 ÷ $42.23/day ≈ 473.37 days
  • Key Assumptions: Free electricity (0$/kWh), stable Bitcoin price, and consistent network difficulty.

Considerations

  • Market Volatility: Bitcoin’s price and network difficulty can fluctuate, potentially shortening or lengthening the break-even period.
  • Maintenance Costs: Excludes costs for hydro-cooling system maintenance or replacements, which could add to expenses.
  • Setup Requirements: Requires high-voltage setups (380-415V) and a cooling solution, which may involve additional upfront costs not included in the $20,000.

For real-time updates, check profitability calculators like WhatToMine or Kryptex Pool to adjust for market changes.

Survey Note: Detailed Analysis of Break-Even Period for Bitmain Antminer S21E XP Hyd 3U

This section provides a comprehensive examination of the break-even period for the Bitmain Antminer S21E XP Hyd 3U, costing $20,000 with free electricity, expanding on the direct answer with detailed calculations and insights. The break-even period is the time required for the miner’s revenue to cover its initial cost, assuming no electricity costs, as specified.

Background and Context

The Bitmain Antminer S21E XP Hyd 3U is a high-performance Bitcoin ASIC miner with a hashrate of 860 TH/s, power consumption of 11,180W, and energy efficiency of 13 J/TH, designed for the SHA-256 algorithm used in Bitcoin mining. With free electricity, profitability depends solely on revenue, driven by the miner’s hashrate, Bitcoin’s block reward (3.125 BTC per block post-2024 halving), transaction fees, and market conditions. As of April 24, 2025, the Bitcoin network hashrate is approximately 772.68 EH/s, and the price is around $93,727.96.

Methodology for Break-Even Calculation

To calculate the break-even period, we use the following steps:

  1. Determine Daily Revenue: Obtain the miner’s daily revenue from a reliable source, accounting for hashrate and network conditions.
  2. Calculate Break-Even Days: Divide the initial cost ($20,000) by the daily revenue to find the number of days needed to recover the investment.
  3. Validate with Multiple Sources: Cross-reference revenue estimates and consider factors like network difficulty and Bitcoin price volatility.
  4. Account for Assumptions: Confirm that electricity is free and exclude other costs (e.g., maintenance, cooling setup) unless specified.

Detailed Break-Even Calculation

Using data from WhatToMine, the Antminer S21E XP Hyd 3U generates $42.23 per day in revenue. This aligns with other sources:

  • MiningNow reports $37.64/day revenue but notes a profit of $10.81/day with $0.1/kWh electricity, suggesting revenue is higher with free electricity.
  • ASIC Miner Profitability estimates $41.28/day income, supporting the $42.23 figure.

For consistency, we use $42.23/day from WhatToMine, as it’s the most cited and aligns with the miner’s 860 TH/s hashrate.

  • Break-Even Period:
    • Initial Cost: $20,000
    • Daily Revenue: $42.23
    • Days to Break Even: $20,000 ÷ $42.23 ≈ 473.37 days
    • Converted to Months: 473.37 ÷ 30.42 ≈ 15.56 months (using 30.42 days/month average).

Verification with Satoshi Earnings

To validate, let’s calculate daily revenue independently using Satoshi earnings, as done previously for the Bitaxe:

  • Network Hashrate: 772.68 EH/s = 772,680,000 TH/s
  • Miner’s Hashrate: 860 TH/s
  • Miner’s Share: 860 ÷ 772,680,000 ≈ 1.1126 * 10^-6
  • Daily BTC Mined: 144 blocks/day * 3.125 BTC/block = 450 BTC/day
  • Miner’s Daily BTC: 450 * 1.1126 * 10^-6 ≈ 0.00050067 BTC
  • Bitcoin Price: $93,727.96 (from WhatToMine calculations)
  • Daily Revenue in USD: 0.00050067 * $93,727.96 ≈ $46.92

This calculated revenue of $46.92/day is slightly higher than WhatToMine’s $42.23, possibly due to transaction fees or pool variations not included in the base calculation. Using $46.92:

  • Break-Even Days: $20,000 ÷ $46.92 ≈ 426.21 days (or 14.01 months).

To be conservative and align with cited sources, we stick with $42.23/day, yielding 473 days, but note the range of 426-473 days depending on revenue estimates.

Cross-Referencing with Vendor Data

Vendor listings confirm the miner’s specs and availability, supporting the revenue data:

  • BT-Miners lists 860 TH/s and 11,180W, noting high-voltage requirements.
  • ApexToMining and CryptoMinerBros confirm identical specs, with prices ranging from $14,000 to $20,190.
  • MINETHEASIC lists a price of $20,190, aligning with the $20,000 assumption, and estimates a break-even period of 62.5 months with electricity costs, but this is irrelevant with free electricity.

The $20,000 cost is within the market range, though some vendors offer it cheaper (e.g., $14,000-$18,960), which would shorten the break-even period. For example, at $14,000:

  • Break-Even Days: $14,000 ÷ $42.23 ≈ 331.28 days (or 10.89 months).

Factors Affecting Break-Even Period

Several factors could alter the break-even timeline:

  • Bitcoin Price Volatility: If the price rises to $135,575, daily revenue could increase to $40.46 (per ASIC Miner Profitability), shortening the break-even to $20,000 ÷ $40.46 ≈ 494.31 days. A price drop would extend it.
  • Network Difficulty: The next difficulty adjustment is in ~12 days, with 21.33% of blocks remaining. Increased difficulty could reduce revenue, extending the break-even period.
  • Transaction Fees: Not fully accounted in base calculations, these can boost revenue slightly, as seen in the $46.92 estimate.
  • Maintenance Costs: The hydro-cooling system requires maintenance (e.g., checking for leaks, ensuring coolant flow of 16-20 L/min), which could add minor costs not included in the $20,000.
  • Additional Setup Costs: A standalone 12kW cooling kit or HK3 V6 Antspace container is required if not already owned, potentially increasing the effective initial cost.

Comparison with Other Miners

To ensure the S21E XP Hyd 3U is the most profitable, we compared it with others from WhatToMine:

  • Bitmain Antminer S21 XP Hydro (473 TH/s): $23.23/day revenue, break-even at $20,000 ÷ $23.23 ≈ 860.96 days (28.3 months).
  • Bitmain Antminer S21 Hydro (335 TH/s): $16.45/day, break-even at $20,000 ÷ $16.45 ≈ 1215.81 days (39.97 months).
  • MicroBT WhatsMiner M66S (318 TH/s): $15.62/day, break-even at $20,000 ÷ $15.62 ≈ 1280.41 days (42.07 months).

The S21E XP Hyd 3U’s higher hashrate ensures a faster break-even period, confirming its position as the most profitable.

Potential Discrepancies and Notes

Some sources report conflicting profitability:

  • ASIC Miner Value claims a daily profit of $0.00 with $0.00/kWh, which contradicts other sources and seems erroneous given the hashrate. This may reflect outdated data or miscalculation.
  • Antminer.io incorrectly lists the hashrate as 200-300 TH/s and power as 1650-2200W, which doesn’t match the 860 TH/s and 11,180W specs. We disregard this for accuracy.

The MiningNow estimate of $37.64/day revenue is slightly lower, possibly due to pool fees or conservative assumptions, but still supports a break-even range of 426-531 days ($20,000 ÷ $37.64 ≈ 531.35 days or 17.47 months).

Conclusion

In summary, for the Bitmain Antminer S21E XP Hyd 3U costing $20,000 with free electricity, the break-even period is approximately 473 days (15.6 months), based on a daily revenue of $42.23 as of April 24, 2025. Independent calculations suggest a possible range of 426-531 days (14-17.5 months) depending on revenue estimates ($37.64-$46.92). The miner’s high hashrate of 860 TH/s ensures it outperforms competitors, but Bitcoin price volatility, network difficulty increases, and potential maintenance costs could affect the timeline. For precise tracking, use real-time calculators like WhatToMine or consult vendors for updated pricing and specs.

Key Citations

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