Which ASIC miner should you buy this year?

The cryptocurrency market has recently undergone its fourth Bitcoin halving, significantly impacting mining economics. This event cut rewards for miners by half, resulting in a major restructuring of the digital asset mining sector. In this environment, selecting the right equipment is essential to sustain profitability.

When choosing mining equipment today, key considerations include energy efficiency below 20 joules per terahash, high performance, and reasonable pricing. Leading models deliver efficiency ratings starting at 15 J/TH for SHA-256 and 0.21 J/MH for the Scrypt algorithm. With electricity costs around $0.06 per kilowatt-hour, modern equipment typically pays for itself in 19–30 months, depending on the model and operating conditions.

ASIC Mining Technology Overview

Mining involves generating cryptocurrency by solving complex mathematical problems within a distributed blockchain network. To mine efficiently, operators need substantial computing power, which specialized devices provide.

ASIC stands for Application-Specific Integrated Circuit. These devices are engineered exclusively for cryptocurrency mining, delivering professional-grade performance far beyond that of standard computers or graphics cards.

ASIC miners produce considerable heat and noise during operation. As a result, they are unsuitable for residential use and require dedicated facilities with proper ventilation and soundproofing.

ASIC Miners for SHA-256 Algorithm

Bitcoin’s SHA-256 algorithm remains the dominant application for ASIC technology. Top manufacturers, Bitmain and MicroBT, have launched next-generation flagship models that set new benchmarks for industry efficiency.

The Bitmain Antminer S21 Pro is currently one of the most powerful SHA-256 miners available. It delivers approximately 234 TH/s at about 3,510 watts, equating to roughly 15 J/TH. This marks a significant improvement over earlier models, which offered 140 TH/s at 3,010 watts.

The S21 Pro features a standard enclosure measuring about 400×195×290 mm and weighs 18–20 kg. It uses dual air-cooled fans and operates at up to 75 dB. Its primary strengths are outstanding performance and energy efficiency, making it ideal for large-scale mining farms with access to low-cost electricity. However, the model is expensive—around $4,000–$5,000—and requires a power supply of 220–277 volts.

The Bitmain Antminer T21 serves as a more budget-friendly alternative in the same product generation. It offers roughly 190 TH/s at approximately 3,610 watts and achieves about 19 J/TH. While the T21 trails the S21 Pro by about 20% in both performance and efficiency, it is considerably more affordable at $2,500–$3,000.

The T21 shares the Pro’s design, including air cooling, a 75 dB noise level, and a weight of about 16 kg. Its key advantage is a lower cost per unit of hashrate, while maintaining Bitmain’s reliability. However, its higher energy consumption per unit of computing power increases operating costs, especially where electricity rates are high. Importantly, the T21 requires a three-phase power supply of 380–415 volts.

MicroBT’s WhatsMiner M60S is the flagship competitor to Bitmain’s offerings. It delivers approximately 186 TH/s at about 3,440 watts, reaching 18.5 J/TH. In some operating modes, it can achieve up to 192–194 TH/s at 3,600 watts.

The M60S is more compact than rival models, measuring 430×155×226 mm and weighing about 13.5 kg. It operates at around 75 dB, features 5-nanometer chips, and comes with a built-in power supply. Its major selling points are reliable performance and high build quality, which have earned the WhatsMiner series recognition comparable to Antminer. Pricing ranges from $3,000–$4,000 depending on the supplier.

Previous-generation WhatsMiner M50S units are also available, offering 126 TH/s at 3,276 watts and approximately 26 J/TH. These can be found used for $1,000–$1,500, making them a solid mid-tier option.

The Canaan AvalonMiner A1466 is the flagship model in Canaan’s Avalon series, designed for Bitcoin mining. It delivers about 150 TH/s at roughly 3,230 watts, achieving around 21.5 J/TH—a notable upgrade from the older A12 series.

It measures approximately 271×192×292 mm and weighs 13 kg. AvalonMiner devices are prized for their stability and competitive pricing. The A1466 offers a strong price-to-hashrate ratio and seamlessly integrates with existing mining farm infrastructure due to its standard dimensions. Downsides include lower energy efficiency compared to competitors and a higher noise level, reaching up to 80 dB. New units cost $2,000–$2,500.

ASIC Miners for Scrypt Algorithm

Mining Scrypt-based cryptocurrencies typically relies on Bitmain’s Antminer L series, as well as devices from Goldshell and Innosilicon. Recently, Scrypt miners have seen substantial advances in performance.

The Bitmain Antminer L9 is a breakthrough device for Scrypt mining, delivering a record 17 GH/s (17,000 MH/s) at about 3,450 watts with energy efficiency of around 0.20 J/MH—nearly double the previous generation. This leap makes the L9 the most profitable choice for Litecoin and Dogecoin, provided access to affordable electricity.

The L9 uses a standard form factor with dual intake and exhaust fans, generates 75–80 dB of noise, and weighs about 14 kg. Its strengths are record-setting performance, improved efficiency, and support for simultaneous mining of Litecoin and Dogecoin. Its main drawbacks are a steep price—$7,000–$10,000—and high power consumption (3.4 kW), requiring robust infrastructure.

The Bitmain Antminer L7 represents the previous generation and until recently was the most powerful Scrypt ASIC. It provides about 9.5 GH/s at around 3,425 watts and achieves roughly 0.36 J/MH. The L7 still delivers reliable results and stable income with reasonable electricity costs.

L7’s advantages include proven reliability—many farms run dozens of units without issue. Prices have dropped to around $3,000–$4,000 for new and about $2,000 used, making the L7 an attractive mid-range option for Litecoin and Dogecoin. Drawbacks include lower efficiency than newer models and significant noise (75–80 dB).

For newcomers, compact devices like Goldshell Mini-DOGE and Mini-DOGE Pro are attractive. These desktop ASICs deliver 185–205 MH/s on Scrypt at just 200–230 watts and operate quietly at 35–45 dB. While much less powerful than larger models, they support home mining of Litecoin and Dogecoin with minimal noise. Mini miners cost $300–$600, offering a low-cost entry to mining.

ASIC Miners for Kaspa

Kaspa, powered by the kHeavyHash algorithm, has surged in popularity, prompting the development of dedicated ASIC miners. Originally mined with GPUs, the introduction of ASICs dramatically increased network difficulty.

The Bitmain Antminer KS5 Pro is the leading Kaspa miner from the industry’s top manufacturer. It processes kHeavyHash at a rate of 21 TH/s at roughly 3,150 watts, with efficiency near 150 J/TH.

This miner uses Bitmain’s standard enclosure (430×195×290 mm, about 16 kg), air-cooled with four fans and noise output around 75 dB. Its key advantages are market-leading Kaspa mining speeds and relatively low energy use per hash for this algorithm. Downsides include a very high price—$15,000–$20,000—and limited utility since it cannot mine other major cryptocurrencies.

The IceRiver KS5 Pro offers an alternative approach, featuring much lower noise (about 40 dB versus the usual 75 dB), making it suitable for quiet environments. It maintains competitive performance and energy efficiency for its algorithm.

ASIC Miners for Ethereum Classic

After Ethereum switched to Proof-of-Stake, Ethereum Classic became the primary coin for Ethash ASIC mining. While the market has shrunk, these ASICs remain in use.

The Jasminer X16-Q is one of the most efficient Ethash ASICs available. It delivers approximately 1.84 GH/s (1,845 MH/s) at just 630 watts, reaching 0.34 J/MH—better than most competitors.

The X16-Q’s insulated chassis keeps noise down to about 40 dB and includes 8 GB of memory for mining Ethereum Classic and other Ethash projects. Key strengths are quiet operation, high energy efficiency, and a compact form factor suitable for home or office setups. The main drawback is its premium price—$5,000–$6,000.

The Bitmain Antminer E9 Pro is Bitmain’s ASIC for Ethash and ETChash algorithms. The upgraded Pro version achieves up to 3.68 GH/s at about 2,200 watts (0.60 J/MH), but it is loud—75 dB—which complicates home use.

Its advantages include Bitmain’s reliability and strong optimization for ETChash. The main weakness is lower efficiency compared to Jasminer. The E9 Pro’s price has dropped to about $1,500 for a new unit.

ASIC Miners for Alternative Algorithms

Specialized ASICs exist for various other Proof-of-Work cryptocurrencies, each with distinct market niches.

For Dash (X11), the Bitmain Antminer D7 is the most powerful, offering 1.286 TH/s at about 3,148 watts—plenty for mining Dash and its forks.

For Zcash (Equihash), top models include the Antminer Z15 (420 kilosolutions/s at 1,510 watts) and the older Innosilicon A9++ (140 kilosolutions/s at 1,550 watts). The Z15 achieves 420,000 solutions/s at about 3.6 J/kilosolution and remains the best choice for Zcash mining. Z15 units sell for about $1,500 on the used market.

For Handshake and Siacoin, the Goldshell HS6 is notable. In Handshake mode, it delivers 4.3 TH/s at 3,250 watts; in Siacoin mode, 10.6 TH/s at 2,350 watts. The HS6 is the most powerful Handshake miner, costing $2,000–$3,000.

Mining Equipment Payback Calculation

Calculating the payback period for an ASIC miner is crucial before making a purchase. The process includes several key steps to assess the investment’s economic viability.

First, calculate electricity costs: device wattage × 24 hours × 30 days, divided by 1,000, multiplied by the rate per kilowatt-hour. This yields the monthly electricity expense for one miner.

Estimate revenue using mining calculators like NiceHash or ASICMinerValue. Enter your device’s hashrate and power draw, and these tools automatically project expected income based on current network difficulty and cryptocurrency prices.

Payback is determined by dividing the device’s price by the difference between monthly income and electricity expenses. Add about 10% to account for likely increases in network difficulty over time.

When comparing miner models, consider not only payback periods but also residual equipment value on the secondary market. Major brands tend to retain value better, which matters if you plan to upgrade your fleet.

How to Choose the Best ASIC Miner

Analyze mining prospects and operational conditions before purchasing equipment. This involves several important steps, each influencing overall profitability.

First, determine local electricity costs, which directly affect operating expenses and can make mining unprofitable at high rates. Next, select your target cryptocurrency based on market outlook, current profitability, and personal preference.

Choose hardware optimized for the desired algorithm, considering performance, energy efficiency, noise, and infrastructure needs.

Set up a suitable location for equipment, ensuring adequate ventilation, temperature control, and soundproofing. Learn how to connect miners to the grid and pools, and review basic maintenance requirements.

Consider third-party hosting services, which rent out space for ASIC miners and often provide comprehensive support. These solutions are ideal for users unable to build their own infrastructure.

Where to Buy Mining Equipment

There are several main channels for purchasing ASIC miners, each offering distinct benefits. Buying directly from manufacturers like Bitmain, MicroBT, or Canaan via their official sites generally yields the lowest price but may require prepayment and a longer wait.

Alternatively, authorized distributors and resellers offer faster delivery and local warranty support but may charge higher prices.

Buying used equipment on the secondary market suits those with smaller budgets or who don’t need the latest models. Manufacturers rarely sell outdated units directly; older models are only available secondhand.

Used miners can be found on general marketplaces or specialized mining hardware platforms. Always check the device’s condition, usage history, and confirm all components work—ask for operational proof, such as screenshots or video of the current hashrate.

Assess seller reputation, review feedback, and verify return or warranty terms. Some platforms offer equipment inspection before shipment, reducing the risk of purchasing defective hardware.

FAQ

Which ASIC miner brands are best to consider this year?

In 2024, recommended models include the Dragonmint T1 from Halong Mining (16 TH/s, excellent energy efficiency) and the Bitmain Antminer S19. Both deliver strong performance and reliability for mining operations.

How do various ASIC miner models compare in performance and power consumption?

Modern ASIC miners vary by throughput and energy use. For example, the Antminer S9 offers 13.5 TH/s at 1,350 watts. Newer models achieve greater efficiency (more hashes per watt), consume less power, and deliver higher performance than previous generations.

What key factors should you consider when buying an ASIC miner?

Consider power usage, hashrate, and device cost. Payback period should not exceed 24 months. Also, check local electricity rates before buying.

What’s the price range for current ASIC miners and how do you choose the best value?

ASIC miners cost $3,000–$10,000. Look for models with optimal hashrate-to-energy efficiency (J/TH). Popular options such as the Antminer S19 Pro and WhatsMiner M30S++ provide high efficiency and profitability.

What’s the mining yield and investment return cycle for ASIC miners?

ASIC mining returns depend on Bitcoin price, mining difficulty, and electricity costs. Current payback cycles are about 18–29 months, historically 12–24 months. Both yield and payback are volatile and should be evaluated based on purchase timing, electricity costs, and market conditions.

What should you watch for when buying an ASIC miner, and what risks and pitfalls are common?

Buy only from reputable sources and avoid counterfeits. Check for warranty, technical support, and return policy. Consider energy consumption, electricity costs, and the risk of hardware failure before purchasing.