The Bitmain Antminer S21 series represents the latest innovation in Bitcoin mining hardware, designed to deliver superior efficiency and performance. This guide offers a detailed analysis of the S21’s profitability, covering both the air-cooled and hydro-cooled models, to help miners make informed decisions.
Overview of the Antminer S21 Series
Bitmain’s Antminer S21 series includes two advanced models tailored for different mining environments:
- Antminer S21 200TH (Air-cooled)
- Antminer S21 Hydro 335TH (Hydro-cooled)
These models are engineered with state-of-the-art cooling technologies and enhanced computational power, making them some of the most efficient ASIC miners available.
Hashrate Performance
The Antminer S21 series offers exceptional hashrate capabilities:
- The air-cooled model delivers a hashrate of 200 TH/s.
- The hydro-cooled model provides an impressive 335 TH/s.
This high hashrate ensures robust performance in solving cryptographic puzzles, essential for profitable Bitcoin mining.
Energy Efficiency
Energy efficiency is a critical factor in mining profitability. The Antminer S21 series excels in this area:
- The air-cooled version operates at 17.5 J/TH.
- The hydro-cooled version achieves an remarkable 16 J/TH.
These efficiency ratings represent a significant improvement over previous models, reducing operational costs and enhancing net earnings.
Pricing Structure
During the initial launch, Bitmain offered promotional pricing for bulk orders:
- Air-cooled units were priced at approximately $2,800 each.
- Hydro-cooled units were available for around $4,690 each.
It’s important to note that these prices were introductory and subject to change in subsequent phases.
Calculating Antminer S21 Profitability
To evaluate profitability, we assume an electricity cost of $0.06 per kWh and a hashprice of $74.79 per PH/s per day (based on recent data). Here’s a breakdown for both models:
Profitability for the Air-Cooled Model
- Daily Earnings: $12.47 (Revenue) - $5.04 (Electricity) = $7.43
- Monthly Earnings: $379.43 (Revenue) - $153.30 (Electricity) = $226.13
- Annual Earnings: $4,553.16 (Revenue) - $1,839.60 (Electricity) = $2,713.56
These figures highlight the potential returns under standard operating conditions.
Profitability for the Hydro-Cooled Model
- Daily Earnings: $25.06 (Revenue) - $7.72 (Electricity) = $17.34
- Monthly Earnings: $762.13 (Revenue) - $234.77 (Electricity) = $527.36
- Annual Earnings: $9,145.56 (Revenue) - $2,817.22 (Electricity) = $6,328.34
The hydro-cooled model’s higher hashrate and efficiency contribute to substantially greater profitability.
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Technical Specifications
Antminer S21 200TH (Air-Cooled) Specifications
- Hashrate: 200 TH/s
- Efficiency: 17.5 J/TH
- Power Consumption: 3500 W
- Voltage: 12 V
- Dimensions: 195 x 290 x 400 mm
- Weight: 18,000 g
- Algorithm: SHA-256
- Release Date: August 2023
Antminer S21 Hydro 335TH Specifications
- Hashrate: 335 TH/s
- Efficiency: 16.0 J/TH
- Power Consumption: 5360 W
- Algorithm: SHA-256
- Release Date: To be announced
These specifications provide essential details for miners evaluating hardware compatibility and performance.
Purchasing the Antminer S21
Bitmain initially accepted pre-orders for the Antminer S21, primarily targeting bulk buyers. However, secondary marketplaces and authorized retailers may offer opportunities for smaller purchases. Prospective buyers should verify seller credibility and delivery timelines.
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Frequently Asked Questions
What makes the Antminer S21 series more efficient than previous models?
The S21 series incorporates advanced cooling solutions and optimized chip design, resulting in lower energy consumption per terahash. This efficiency directly reduces electricity costs and improves overall profitability.
How does the hashprice impact mining profitability?
Hashprice refers to the daily revenue generated per unit of hashrate. It fluctuates based on Bitcoin’s market price, network difficulty, and transaction fees. Higher hashprice values increase mining income, while lower values reduce it.
Can individual miners purchase the Antminer S21, or is it only for large operations?
While Bitmain’s initial pre-orders targeted bulk buyers, secondary retailers often accommodate smaller orders. Miners should research authorized sellers to secure units without minimum quantity requirements.
What are the main differences between air-cooled and hydro-cooled models?
Air-cooled models use fans for heat dissipation and are generally easier to set up. Hydro-cooled models use liquid cooling for superior efficiency and higher hashrates but may require more complex installation and maintenance.
How often should I update my profitability calculations?
Mining profitability depends on dynamic factors like electricity costs, Bitcoin price, and network difficulty. It’s advisable to recalculate earnings periodically using updated metrics for accurate planning.
Is the Antminer S21 suitable for mining other cryptocurrencies?
The S21 is designed for SHA-256 algorithm mining, which includes Bitcoin and a few other cryptocurrencies. It is not compatible with algorithms used by coins like Ethereum or Litecoin.
Conclusion
The Bitmain Antminer S21 series offers cutting-edge efficiency and high hashrates, making it a compelling choice for Bitcoin miners. By understanding its profitability metrics, technical specs, and market availability, miners can strategically integrate these units into their operations for optimized returns. Always stay informed about market trends and adjust strategies accordingly for sustained success.