A detailed guide to ASIC mining in 2025–2026: which cryptocurrencies make sense to participate in, which ASIC miners to choose, and how to reduce power consumption and risks. A review of the current Antminer S21 Pro, Whatsminer M60 S, and IceRiver KS5 Pro models, as well as the prospects for Kaspa, Litecoin, Dogecoin, and Zcash. Tips for choosing secure wallets for storing mined cryptocurrency.
Introduction: Why ASIC Mining Is Still Relevant 🌍
In 2025, interest in cryptocurrency mining is experiencing a resurgence. Despite the transition of many networks to Proof-of-Stake and increased regulatory requirements, mining Bitcoin, Litecoin, Dogecoin, and other PoW coins remains profitable with the right approach. The blog notes that key ROI factors include equipment cost, hashrate, electricity tariff, network difficulty, and mining pool fees. Specialized ASIC miners provide maximum performance and the lowest energy consumption per unit of hash, allowing large farms to continue to generate a stable income.
Since Ethereum’s transition to PoS, GPU mining has become unprofitable: according to , the profitability of a multi-GPU mining rig is measured in dollars or even cents per day. Therefore, the question “What is more profitable to mine with ASICs?” is relevant for miners worldwide. In this article, we will examine the most profitable algorithms and ASIC hardware models in 2025–2026, as well as strategies for increasing profitability.
Factors Affecting Mining Profitability ⚖️
Before choosing a cryptocurrency to mine, it’s important to understand the economics of the process.
💡 Key ROI metrics
- Equipment cost. Current ASIC models and their price determine the basic investment. According to , the lifespan of ASIC miners is 2–4 years, so it’s important to estimate when the device will pay for itself.
- Hashrate and power consumption. The higher the device’s hashrate and the lower its power consumption, the more coins can be mined with the same amount of energy. Top-end ASIC devices consume 15–20 J/TH, which is much more efficient than GPUs.
- Electricity costs. Energy consumption accounts for 60-80% of a mining rig’s costs. An article on Cool-Mining.org notes that a typical ASIC consumes 1.5-3.5 kW, which, at $0.12 per kWh, translates into a monthly cost of $130-300 per unit. Reducing consumption by just 20% increases net profit by 40-60%.
- Network complexity and coin price. Increased complexity and a declining price can extend the payback period. notes that after the 2024 halving, the Bitcoin network has grown to 800 EH/s, and the projected ROI for modern ASICs at a price of $130,000 per BTC and a tariff of $0.045/kWh is approximately 27 months.
The Best ASIC Miners for 2025–2026 🏆
has compiled a selection of models that offer the best return on investment and energy efficiency:
| Algorithm | Model | Hashrate and power | Advantages |
|---|---|---|---|
| SHA-256 (Bitcoin) | Antminer S21 Pro | 235 TH/s, 3300 W | leader in efficiency, stable payback |
| Whatsminer M60 S | 226 TH/s, 3440 W | reliability and ease of maintenance | |
| Antminer S19 XP | 140 TH/s, 3010 W | budget option; used models pay for themselves faster | |
| KHeavyHash (Kaspa) | IceRiver KS5 Pro | 15 TH/s, 3400 W | top performance, but expensive |
| IceRiver KS3M | 6 TH/s, 3200 W | optimal balance of price and power | |
| Scrypt (Litecoin/Dogecoin) | Antminer L7 | 9.5 GH/s, 3500 W | Scrypt mining leader, still relevant in 2025 |
| Equihash (Zcash) | Antminer Z15 Pro | 840 KSol/s, 2570 W | one of the most efficient ASICs for Equihash |
💡 Tip: Combining ASICs and GPUs allows you to diversify risks: ASICs provide a stable income, while GPUs give you the flexibility to switch to new PoW projects .
Promising Altcoins for ASIC Mining
- Bitcoin (BTC) remains the most stable coin for ASIC mining. Success depends on access to cheap or “green” energy: warns that at $0.15–0.20/kWh, mining for small farms becomes unprofitable. Large operators are increasingly using renewable energy sources.
- Litecoin/Dogecoin (Scrypt). Thanks to merged mining of LTC and DOGE, profitability remains attractive. However, network difficulty is increasing, so it makes sense to invest in modern models like the Antminer L7.
- Kaspa (KAS). This coin has been gaining popularity since Ethereum’s transition to PoS. According to Cool-Mining.org , Kaspa uses the energy-efficient kHeavyHash algorithm and offers fast block processing thanks to blockDAG technology. With low electricity costs and modern hardware, the payback period can be as short as 8-12 months. However, one should take into account the decreasing reward (~5.94% per month) and increasing network difficulty.
- Zcash (ZEC). An alternative PoW project for ASIC miners. The Antminer Z15 Pro is considered one of the most efficient devices for Equihash. ZEC’s privacy makes it attractive to users, but profitability depends heavily on difficulty and price.
Reduce energy consumption and increase ROI 🔧
Electricity is the main expense in mining. Cool-Mining.org provides specific figures: ASIC devices consume 1.5–3.5 kW, which, at $0.12/kWh, costs $130–300 per month. A few practical tips will help reduce costs:
- BIOS optimization, undervolting, and overclocking. For GPUs, it’s recommended to reduce voltage and frequency to reduce power consumption without significantly impacting hashrate. For ASICs, custom firmware (Braiins OS+, Hiveon ASIC, VNish) is available that can reduce power consumption by 15–20% without sacrificing performance. Avoid extreme overclocking, as the increase in hashrate may be offset by increased power consumption.
- Weeding out inefficient devices. Monitor each miner: if a particular device is consuming too much power, it’s best to turn it off and focus on the most efficient models.
- Cooling optimization. Good ventilation reduces fan speed and, consequently, energy consumption. Large farms use liquid and immersion cooling, which reduces costs by 8–10% per unit.
- Using solar panels and alternative energy. Reducing dependence on grid tariffs increases margins. Thanks to the reduction in the cost of photovoltaic panels (~70% over ten years), even home miners can partially power their farms with solar power.
- Choosing the right pool and schedule. Use pools with minimal fees and stable uptime; switch between coins based on profitability. Also consider the seasons: in cold climates, some of the heat from miners can be used for heating, effectively reducing costs.
Looking Ahead: Trends for 2026 🔮
Experts predict a further increase in the overall hashrate and the release of more energy-efficient ASIC miners in 2025–2027. JPMorgan estimates that the Bitcoin network hashrate could reach 1,200–1,300 EH/s by the end of 2025. This will reduce the profitability of older devices and force miners to regularly upgrade their fleets.
On the other hand, the transition of large companies to green energy and the development of mining hosting services with low tariffs will help maintain profitability. Small miners can survive if they find cheap electricity (for example, in Kazakhstan, Canada, Iceland) and master flexible strategies: switching between coins, participating in decentralized pools, and diversifying their equipment.
Safe Storage: Which Wallet to Choose 🔒
Ensuring the security of mined coins is equally important. Crypto-Wallets.org published a detailed overview of cryptocurrency wallets for beginners. It emphasizes that the choice of wallet affects not only convenience but also the security of funds. Types of wallets:
- Custodial (exchange) cryptocurrencies are easy to use, but the private keys are stored by the company, which carries the risk of being blocked. These are best used temporarily.
- Mobile wallets are convenient for everyday transactions and support multiple currencies, but smartphones are vulnerable. Popular options include Trust Wallet and Exodus.
- Hardware wallets are the most secure way to store large amounts of money; private keys are stored offline. Examples: Ledger, Trezor, Keystone.
- Web3 wallets (MetaMask, Rabby) are suitable for DeFi and NFTs, but require caution against phishing sites.
🚨 Tip: For long-term storage of mined BTC, LTC, KAS, or ZEC, a hardware wallet is recommended. For everyday transactions, you can use mobile or Web3 wallets, but be sure to enable two-factor authentication and keep your seed phrases safe.
Conclusion ✅
In 2025–2026, ASIC mining will remain profitable if several conditions are met: energy-efficient hardware, access to affordable or renewable energy, a sound assessment of profitability, and flexibility in switching between PoW coins. Top-end models like the Antminer S21 Pro, Whatsminer M60 S, and IceRiver KS5 Pro provide high hashrate with moderate power consumption. Altcoins like Kaspa, Litecoin/Dogecoin, and Zcash offer additional diversification, but require consideration of decreasing rewards and increasing difficulty.
Mining success depends on attention to detail: setting up equipment and cooling, choosing an efficient mining pool, reducing power consumption, and using green energy. Finally, the security of funds is key: choosing the right crypto wallet protects your income from hacks and losses. By following the advice from , , , and , miners around the world can improve their efficiency and enter 2026 with sustainable profits.
Sources
- — article “Mining Economics in 2025: How to Calculate a Farm’s Payback and Reduce Risks” (more on ROI, device lifespan, and profitability factors).
- — article “Mining Hardware in 2025: The Best ASICs and GPUs” (list of current ASICs, energy efficiency comparison).
- — article “Cryptocurrency Mining in 2026: Forecasts, Trends, and Profitability” (data on hashrate growth, the impact of price on ROI, and the prospects for ASICs).
- Cool‑Mining.org – article “Kaspa (KAS): Mining Prospects and Profitability in 2025–2026” (description of blockDAG, kHeavyHash, payback and risks of Kaspa).
- Cool-Mining.org — guide “How to reduce mining rig energy consumption, increase ROI and efficiency” (electricity costs, PoW algorithm efficiency, and consumption reduction tips).
- — article “The Best Crypto Wallet for Beginners: How to Choose and Avoid Mistakes” (types of wallets, advantages and disadvantages of mobile, hardware, and Web3 wallets).
