ASIC for Mining in 2025: Profitable Models, Actual Earnings, and a Complete Guide to Choosing Equipment

Cryptocurrency mining in 2025 is experiencing an interesting phase. After the halving, Bitcoin’s price recovered to $90.25K, and ASIC hardware technology reached new efficiency heights. If you think that cryptocurrency mining is no longer profitable — that’s not entirely true. It all depends on choosing the right equipment and understanding the actual payback period.

Why ASIC Dominates the Mining Market

ASIC miners (Application-Specific Integrated Circuit) are not just computers. They are specialized devices designed for one task: mining cryptocurrencies with maximum efficiency. In practice, this means performance that is dozens of times higher than GPUs (Graphics Processing Units).

The difference is impressive: if a GPU delivers megahashes per second (MH/s), then an ASIC for Bitcoin operates with hundreds of terahashes (TH/s). At the same time, power consumption remains lower thanks to optimization for a specific algorithm — whether SHA-256 for Bitcoin, Scrypt for Litecoin, or kHeavyHash for Kaspa.

The main downside of ASIC miners is that they are tied to a single algorithm. Switching between coins is not easy. But if you’ve already decided what exactly to mine, this becomes an advantage rather than a disadvantage.

Which Coins Are Profitable to Mine on ASIC in 2025

The ASIC mining ecosystem has expanded. Currently profitable are:

SHA-256 algorithm: Bitcoin (BTC) at $90.25K remains the leader, also Bitcoin Cash (BCH) with a quote of $630.86.

Scrypt: Litecoin (LTC) trades at $81.01, Dogecoin (DOGE) at $0.14. Despite smaller volumes, these coins provide stable income due to low network difficulty.

Alternative algorithms: Kaspa (KAS) at $0.05, Ethereum Classic (ETC) at $12.55, Kadena (KDA) at $0.01. These options are interesting for those seeking new opportunities.

Top ASIC Miners for 2025

The market is dominated by three manufacturers: a company producing the Antminer line, the well-known WhatsMiner, and AvalonMiner creator. Here are models worth attention:

Top performance:

• Hydro-cooled model with 473 TH/s and water cooling — ideal for serious operations. Power consumption 5676 W, but hash rate justifies the cost. Price around $9500.
• 390 TH/s with immersion cooling — an alternative, consumes 5360 W, priced at $9000.

Best price/quality ratio:

• 234 TH/s, 3510 W — one of the most balanced options. Energy efficiency of 15 J/TH — better than competitors. Payback period at $0.05/kWh is 14–16 months. Price $4700.
• 132 TH/s, 4092 W — sufficiently powerful but significantly cheaper. Suitable for startups.

For Litecoin and Dogecoin:

• 17 GH/s, 3400 W — specialized model. Noise level 75 dB.

For Kaspa:

• 21 TH/s, 4000 W — gaining popularity. KAS grows slower in volume, but network difficulty is lower.

For Kadena:

• 29.2 TH/s, 2630 W — compact option, suitable for small operations.

Real Earnings Figures in 2025

Let’s get practical. What actual income can you expect?

**Scenario 1: Mid-range Antminer S21 Pro $2200 234 TH/s$6500 **

With Bitcoin at $90.25K and electricity at $0.05/kWh:

• Daily income: $15.2 in Bitcoin
• Daily electricity costs: $4.2
• Net profit: $11/day
• Monthly earnings: $6000 - Payback period: 14–16 months under stable conditions

Scenario 2: Budget choice WhatsMiner M50S (132 TH/s)

• Daily income: $8.5
• Power costs: $2.05/day
• Net profit: $6.45/day
• Monthly: $330
• Pays off in 11–12 months due to lower equipment cost

Scenario 3: Litecoin/Dogecoin (Antminer L9, 17 GH/s)

• Daily income $193 LTC $81.01 + DOGE $0.14(: $12.5
• Costs: $4.1/day
• Net profit: $8.4/day
• Monthly income: )- Payback: 24–26 months ( due to equipment price

Important: These calculations assume stability. If Bitcoin rises to )— payback shortens to 8–10 months. If it falls to $252 — it extends to 18–24 months.

How to Choose the Right ASIC for Your Conditions

Choosing equipment is not just about finding the most powerful device. Consider:

1. Energy efficiency (J/TH): This is a key indicator. 15 J/TH in the Pro version means each terahash costs less in electricity. If your region has high electricity prices, focus on this parameter.

2. Initial costs: Expensive equipment with higher hash rate pays off faster but requires large investments. Budget options $100K $2000–$3000$50K are suitable for testing.

3. Placement conditions: For apartment use, models with water cooling (noise 50 dB) are needed. Standard air cooling creates 75–80 dB noise — disruptive to neighbors. For farms, any options are suitable.

4. Specialization: If you plan to mine only Bitcoin — a very wide choice. For Litecoin/Dogecoin — specialized models. For Kaspa or KDA — niche but promising markets.

Where to Buy Equipment and What to Watch For

Purchasing ASICs is a responsible step. Practical tips:

New devices: Buy from official dealers or trusted suppliers. Prices for new ASIC miners range from (to ) depending on performance. Warranty usually 1 year.

Used equipment: Can be 50–70% cheaper. But be cautious:

• Check videos of working units
• Ask about repair history
• Request data on hash board wear
• Find out remaining warranty from manufacturer

Used Antminer S19 Pro (110 TH/s) can be found for $800–$2000 versus new.

Pre-orders: Sometimes new models are offered with 15–20% discounts for pre-order.

Setting Up and Connecting ASIC

After purchase, set up properly:

Connection: Use a compatible power supply. Ethernet connection is mandatory — Wi-Fi is unstable for mining. Power supply voltage: 220–380 V depending on model.

Web interface: Find the device’s IP via router, enter in browser. Default login/password often remains unchanged. Enter mining pool address, worker ID, and password.

Pool selection: F2Pool has 1.5% fee, ViaBTC offers 2%, official manufacturer pools — 1%. The difference can be about $50–$9500 per month with optimal choice.

Cooling and Noise: Solutions for Home

If mining in a residential space, address noise and heat:

Soundproof boxes: Reduce noise by 10–20 dB, cost $200–$400. Necessary for apartments.

Water cooling: Modern ASIC miners with hydro cooling operate at around 50 dB. Require cooling systems but are worth it.

Immersion cooling: Submerging ASICs in dielectric liquid virtually eliminates noise. But system costs about (~)per kit$1200 .

Temperature control: Maintain 20–40°C. Over 70°C reduces hash rate by 10–20%. Ensure adequate ventilation.

Maintenance, Firmware, and Repairs

ASIC miners require minimal maintenance but sometimes need optimization:

Custom firmware: HiveOS, Vnish, Braiins OS can boost performance by 5–15% or reduce power consumption. Updates via web interface, but errors can brick the device.

Common issues: Hash board disconnections due to overheating or power failures. Reduced performance signals dust on radiators or chip wear. Network issues indicate unstable internet.

Repairs: In large cities, specialized workshops are available. Diagnostics and repairs cost from $2000 to $200. Direct suppliers in China offer warranty repairs with shipping.

Final Recommendations

If you’re a beginner, start with a budget option like WhatsMiner M50S — quick payback, learn the process, and decide if a full farm is needed.

For serious earnings, choose between 234 TH/s and 390 TH/s models. They balance price, efficiency, and reliability.

If diversification interests you — add a specialized ASIC for Litecoin or Kaspa. This reduces risk concentration on one coin.

Monitor exchange rates: Bitcoin at $90.25K, LTC at $81.01, DOGE at $0.14 — roughly current quotes. But volatility can sharply change profitability. Use mining calculators like WhatToMine for current estimates.

Remember: mining remains profitable with low electricity rates and responsible equipment choice. Invest thoughtfully and don’t chase maximum power if conditions don’t support it.