Bitmain Antminer S21

Crypto mining has evolved massively since the inception of Bitcoin in 2009. In the past, mining Bitcoin was possible with CPUs outfitted with GPUs. However, as the Bitcoin network ballooned by a factor of ten in 2013, so did difficulties associated with mining.

To keep up with the steep competition and the challenges competition has engendered, miners turned to specialized hardware to optimize their operations. These specialized pieces of hardware are called Application-Specific Integrated Circuits (ASICs), which are now the norm in the crypto-mining space.

Bitmain has been a key player in the evolution of crypto mining with its highly efficient ASIC miners like the Antminer series.

The Antminer S21 and S21 HYD models represent Bitmain’s commitment to innovation, offering higher hash rates and energy efficiency compared to previous models.

Learn more about this innovative and ground-breaking piece of mining hardware and find out how it can be a worthwhile addition to your mining arsenal.

Bitmain and the S21’s Role in the Crypto Mining Industry

Bitmain’s journey in the ASIC mining hardware industry began with its founding in 2013. Since its inception, Bitmain has shaped the landscape of ASIC mining hardware with its famous Antminer line.

From the S1 to the S9

The first Antminer model, the S1, was released in 2013. It was designed specifically for mining Bitcoin with a hash rate of around 180 GH/s and consuming approximately 360 watts.

In 2014, Bitmain released the AntMiner S3 and S5. These improved hash rates and energy efficiency, with the S5 offering a hash rate of around 1155 GH/s.

From here, the AntMiner S7 (2015) marked a significant advancement, boasting a hash rate of approximately 4.73 TH/s and higher efficiency.

However, released a year later, the AntMiner S9 took things a step further. Besides improved energy efficiency, it boasted a hash rate of 13.5 TH/s. Due to the diverse set of mineable coins on the S9, it also became a popular choice for altcoin miners.

The Pinnacle of Antminer Design: The S19 Line

In 2020, Bitmain revolutionized the cryptocurrency mining industry with its Antiner S19.

The S19 series, including models like the S19 Pro and S19, offers even higher hash rates of 55 TH/s. The S19 line also boasts improved energy efficiency, pushing the boundaries of ASIC mining technology and enabling miners to achieve greater performance and profitability in their operations.

The S21: The Latest Stage of ASIC Mining Hardware Evolution

Bitmain announced its latest mining hardware, the Antminer S21, on October 8, 2023.

The S21 series, including variants like the S21 and S21 HYD, continues Bitmain’s tradition of pushing the boundaries of ASIC mining technology. The S21 HYD, in particular, introduces innovations like water cooling, enhancing performance and longevity.

These models offer even higher hash rates compared to their predecessors, particularly the S19 line. These innovations and features enable miners to achieve greater performance and profitability.

The Antminer S21’s Tentative Technical Specs

The Antminer S21 is poised to make an impact on the crypto-mining industry.

What’s Under the Hood and On It

Packing a 200-TH/s hash rate, it matches the S19e head-to-head. The S21 also measures 382mm x 210mm x 372mm and weighs 14.2kg, making it comparable to its predecessors in terms of dimensions and weight.

Cooling Requirements and Noise Level

With advanced cooling systems, the S21 maintains optimal operating temperatures, thereby extending hardware longevity. The system’s noise reduction features also make it a more viable option for varied mining environments.

Algorithm Compatibility

Lastly, like its predecessors, the Antminer S21 is compatible with the SHA-256 algorithm. The compatibility with this algorithm makes the S21 ideal not just for mining Bitcoin but the 56 other coins on the Bitcoin blockchain as well.

Maintenance

According to Bitmain, ensure that the “Secure Boot” function is activated while disabling the “Root Authority” feature within the firmware. This helps prevent the potential spread of viruses and safeguards your device from damage.

For voltage safety, you’ll have to select an AC input wire per 10A and operate at a temperature of 40°C at sea level. You can also adjust the temperature when operating between 900m and 2000m.

Performance Analysis

On low power, the Antminer S21 does deliver on its superior hash rate promise, clocking in at an average hash rate of 197 Th/s at 16.7 J/TH. Although the rate comes three TH/s shy of its advertised hash rate, it’s still impressive, considering that this output is on low power.

However, the hash rates don’t necessarily increase on higher settings. Hence, you’ll have to stick to low-power mode to get the most efficiency out of the Antminer S21.

With its performance in normal mode, the S21 slightly lags behind other models like the S19. Nevertheless, the Antminer S21 outshines its predecessor in low power performance and efficiency.

To learn more about how the Antminer performs in real-time, here’s a video from The Hobbyist Miner.

The S21’s Profitability

When determining your profitability with the S21, you’ll have to consider multiple factors, namely electricity costs, mining difficulty, and the price of Bitcoin.

Let’s first determine how much you’d have to spend on electricity.

Let’s assume that the cost of electricity in your area is 10 cents/kWh. The Antminer S21 has a wattage requirement of 3,500 watts. Ran for 24 hours; you may have to pay at least $8.40.

The price of Bitcoin will also determine how much you can bring in. However, since Bitcoin prices fluctuate greatly, estimating your exact profit margin with the S21 is hard.

Predicting long-term ROI can also be tricky. However, one factor you can count on is the depreciation of hardware. As time passes, hardware (like the S21) will devalue. This can affect your ROI.

The S21’s Potential Market Impact on Bitcoin Mining

The S21 could shake up the mining space if it delivers on its specifications across the board. With its high hash rate and efficiency, the S21 can potentially increase the overall hash rate of the Bitcoin network, making it more secure and resilient.

However, whether this all comes to pass depends not just on whether the S21 lives up to the hype. Other factors like adoption, crypto demand, and pricing trends will also come into play.

Pricing trends can also influence how big of a splash the S21 can make in an ever-competitive crypto-mining space.

Environmental Considerations

The Antminer S21 is a new piece of mining hardware, meaning its environmental effects are still unknown. However, we can extrapolate that it may leave a much wider carbon footprint than its predecessor, the S19, due to its lower efficiency in normal mode.

Adopted in countries where there’s a heavy reliance on fossil fuels, the Antminer S21 can also bring about more carbon emissions due to its wattage requirements.

The Future of ASIC Mining Technology

If there’s one thing the Antminer S21’s specs suggest, it’s that the future of ASIC mining technology errs on the side of higher hash rates, improved energy efficiency, and enhanced stability.

Improvements in the Antminer series and Bitmain’s innovation suggest the continued development of cutting-edge products with advanced features and optimizations for emerging mining algorithms and growing blockchains.

Guides and Tutorials for Beginners

To learn more about cryptocurrencies and mining, here are some beginner-friendly guides and tutorials you can check out:

• Bitcoin Wiki: Your source for all information on Bitcoin mining, including hardware, software, and pool selection.
• Hasrate.no: Hasrate provides news, guides, and tutorials on various aspects of mining, including setting up your first mining rig.
• 99 Bitcoins: This YouTube channel is dedicated to curious, new, and seasoned miners.
• Bitmain’s S21 Guide: In this guide, Bitmain outlines the S21’s specs and gives some practical maintenance tips.

If you want to join forums for ongoing discussions, here are some you can take part in:

• Bitcoin Talk
• Hiveon

FAQs

What’s the Hash Rate of the Antminer S21? Is It More Than the S19’s?

The Antminer S21’s hash rate trumps that of the S19, clocking in at 200 TH/s — more than 145 TH/s more than the S19.

Is the Antminer S21 okay for home mining?

While the Antminer S21 can be used for home mining operations, its high hash rate and power consumption may make it more suitable for professional mining farms or colocation facilities.

Antminer S21 miners are available for pre-order in 2023. 50% down now and 50% remaining balance at the time of shipping (Q1 2024). If you need a Bitcoin mining hosting for your Antminer S19 Pro or our AntMiner S21 units, we can assist. We offer host partners with rates starting from 6.9 to 8.5 cents USD all over the United States, Canada and in the EU (limited). All in pricing (rack space, cooling, power and Internet) ranges from $155 to $190 USD per unit a month. Better hosting rates may be available for miners with 1MW of miners (ie) 260 S21 units. Please contact us for more details on purchasing options.

Antminer S21 Prices and In Sock Availability