Bitcoin miners seek increasingly efficient machines that can deliver top-tier performance while managing power consumption.
The Antminer S21 Pro promises to meet these needs, boasting significant advancements in both hashrate and energy efficiency.
In this review, we’ll dive deep into its features, performance, and overall value for miners of all scales.
The S21 Pro delivers an impressive hashrate of 234 TH/s, positioning it as the most powerful air-cooled Bitcoin mining machine available. This marks a 17% increase over its smaller counterpart, the S21, which operates at 200 TH/s.
While maximizing hashrate is crucial, the most significant advancement the S21 Pro brings to the market is its exceptional energy efficiency of 15 J/TH—an impressive 14% improvement over the S21’s 17.5 J/TH.!
The S21 Pro is a powerhouse, delivering a massive hashrate with superior energy efficiency, making it a top choice for serious miners.
Experienced miners understand that nameplate specifications can sometimes paint a more favorable picture than real-world performance, especially with Antminer models. This is why conducting real-world testing is essential to obtain accurate data on how the machine truly performs under typical operating conditions. These tests reveal important insights into efficiency, hashrate consistency, and power consumption that may differ from the manufacturer’s claims.
We’ve been running several S21 Pro units in Norway for two weeks, providing real-world data on their actual performance, efficiency, and stability compared to the nameplate specs. Let’s look at test results from one machine.
Over a 24-hour period, with measurements taken every 5 minutes, the Antminer S21 Pro achieved an average hashrate of 238 TH/s, surpassing its rated hashrate of 234 TH/s. The hashrate remained highly stable, with a variance of only 6 TH/s between the lowest and highest readings of 235 TH/s and 241 TH/s, respectively.
Energy efficiency is significantly affected by the operating environment, especially temperature. The S21 Pro is specified to achieve an efficiency of 15 J/T at 25°C.
We have achieved a similar efficiency in Norway. It is important to note that our facility in Norway offers an optimal climate for mining, providing an excellent environment for the S21 Pro to perform at its best. If you are mining in a location with less favorable conditions, you may not experience the same level of performance.
In summary, the S21 Pro meets its impressive nameplate specifications and consistently delivers this high level of performance in real-world conditions.
A bitcoin mining machine’s primary goal is to maximize hashrate while minimizing energy consumption. The S21 Pro certainly achieves this goal by delivering an impressive hashrate of 234 TH/s with a leading energy efficiency of 15 J/T.
How do these performance parameters translate into actual mining profitability?
According to the chart, with an electricity cost of $0.07/kWh, the Antminer S21 Pro stands out as the most profitable bitcoin mining machine, achieving a direct BTC production cost of just $32k. This results in a nearly 50% gross profit margin at the current bitcoin price of $62k.
For miners aiming to secure high gross margins over the long term, the Antminer S21 Pro is an excellent choice.
At the $0.07/kWh electricity rate we offer in Norway, this machine is projected to remain cash flow positive for at least 4 years, aligning well with bitcoin's historical 4-year cycles.
Durability is a critical yet often overlooked factor when selecting a bitcoin mining machine. It is important to invest in a machine that can endure for at least 4-5 years before it becomes obsolete or is reduced to scrap metal.
Naturally, given that this machine is relatively new, its durability is still somewhat speculative. However, based on Antminer’s historical track record of 4-5 years of durability, there is reason to believe that this model will prove to be similarly long-lasting. If hosted in an optimal operating environment, providing a substantial period for generating bitcoin for its owner.
As a leader in efficiency and hashrate, the Antminer S21 Pro naturally will come at higher prices than most other machines. As you know, quality doesn’t come for free. The machine is still competitively priced, and not overpriced like some other historical leaders like the S19 XP was when it was newly launched.
Prices fluctuate daily, and you can follow them in our Telegram channel.
The Antminer S21 Pro represents the latest in Bitcoin mining technology, offering an impressive balance of performance and energy efficiency. Its 234 TH/s hashrate, coupled with its 15 J/TH power efficiency, makes it the most profitable option for miners looking to optimize their operations.
Whether you’re running a large-scale mining farm or simply looking to upgrade your current setup, the S21 Pro delivers reliable performance, lower electricity costs, and a solid return on investment. If you’re serious about Bitcoin mining, the Antminer S21 Pro is an investment worth considering.
Ready to maximize your Bitcoin mining potential? Our team of experts is standing by to craft a personalized hosting package for your Antminer S21 Pro in our state-of-the-art Norway facility.
Benefit from optimal climate conditions, stable power, and 24/7 professional management. Fill out the form below to receive your tailored offer and take the first step towards unparalleled mining efficiency.
who've experienced the Hashlabs difference
I've been following Hashlabs' journey in the crypto space, and their commitment to transparency and reliability is unmatched. Their detailed updates and clear communication make me confident that their new facility in Ethiopia will be a game-changer in sustainable Bitcoin mining. - Brian Kim, Tech Entrepreneur
In a world where sustainability is key, Hashlabs stands out for their commitment to eco-friendly mining solutions. Their new hydropower-based facility in Ethiopia is a testament to their dedication to the environment. I trust Hashlabs to lead the way in responsible Bitcoin mining. - Steven Quinn, Digital Investor
As a Bitcoin enthusiast, I'm always on the lookout for companies that push the boundaries of innovation. Hashlabs has impressed me with their state-of-the-art mining technology and sustainable practices. Their approach to transparent and ethical mining aligns perfectly with what I look for in a mining partner. - Gulnara Slambekova, Bitcoin Enthusiast
The Antminer S21 Pro boasts an impressive hashrate of 234 TH/s and an industry-leading efficiency of 15 J/TH. This combination of power and efficiency makes it one of the most profitable Bitcoin miners on the market today.
Our Norway facility offers several advantages: cool climate for optimal miner performance, stable and affordable electricity $0.068, expert management, and 24/7 monitoring. These factors combine to maximize your mining profitability and extend the lifespan of your S21 Pro.
ROI can vary based on Bitcoin price and network difficulty. However, with our optimal operating conditions and low electricity costs, many clients see ROI within 12-18 months. We provide detailed profitability projections with every quote.
We provide 24/7 monitoring, regular maintenance, and prompt issue resolution. Our team of experts ensures your S21 Pro operates at peak performance, handling everything from setup to ongoing optimization.
Yes, we provide a user-friendly dashboard where you can monitor your miner's performance, earnings, and other key metrics in real-time. You have full transparency into your mining operation.
You can choose from 1-year, 2-year, or 3-year contract terms based on your preference and business needs.
Our on-site technicians handle all repairs promptly. In case of major issues, we have partnerships with manufacturers for quick replacements, minimizing any downtime for your mining operation.