What makes the Antminer Z15 Pro 860K a good investment right now?
Zcash mining is getting a lot of attention again. The Antminer Z15 Pro is the machine that everyone is talking about. Our Hong Kong team just unboxed a fresh batch of them today. You might ask if this Equihash algorithm miner is still profitable. The numbers give a clear answer.
Yes, the Antminer Z15 Pro 860K is a strong investment right now. It delivers 860 KSol/s with 2560W power consumption. At $0.06 per kWh, you get a daily net profit of about $44. The machine runs on the Equihash algorithm for Zcash mining.
This machine is a favorite among our North American and European clients. The reason is simple. The Z15 Pro runs relatively cool compared to some Bitcoin miners. It uses a standard air-cooled design. You can operate it in a normal mining facility without expensive immersion setups. Many of our clients in Canada run these machines year-round. The cool ambient air helps keep fan speeds low. This reduces noise and extends the fan lifespan. For clients in warmer regions like Dubai or the UAE, you need good ventilation. A well-designed airflow system is enough to keep these machines happy.
We also offer futures contracts for the Z15 Pro 840K MIX. These are great for large-scale buyers who want to lock in a lower price. The July batch is $6,900. The November batch drops to $3,580. This is a big price gap. Smart buyers use futures to plan their expansion while managing cash flow. We sell you the machine. We also help you plan your mining future.
Z15 Pro 860K Full Parameter Breakdown
| Parameter | Value |
|---|---|
| Model | Antminer Z15 Pro 860K |
| Algorithm | Equihash |
| Hashrate | 860 KSol/s |
| Power Consumption | 2560W |
| Power Efficiency | 2.98 W/KSol |
| Daily Gross Revenue | ~$47.68 |
| Daily Power Cost (at $0.06/kWh) | ~$3.68 |
| Daily Net Profit | ~$44.00 |
| Spot Price | Contact us |
Z15 Pro Futures Pricing
| Model | Batch Month | Price (USD) |
|---|---|---|
| Z15 Pro 840K MIX | July 2026 | $6,900 |
| Z15 Pro 840K MIX | November 2026 | $3,580 |
How to Control Costs When Scaling Z15 Pro
If you plan to run 100 units of the Z15 Pro, power cost is your biggest concern. Total power draw for 100 units is 256kW. You need a facility that can handle that load. We always tell our clients to negotiate power rates first. Even a small drop from $0.06 to $0.05 per kWh makes a huge difference. For 100 machines, that saves you about $61 per day. Over a year, that is over $22,000 in pure savings. Our team can help you calculate the exact numbers for your location. Just reach out to us.
A Real Look at Our Z15 Pro Stock
We don’t just talk about machines. We show them to you. Every single Z15 Pro we sell has a sticker. That sticker has our MinerSource logo. It has the current date. It has the machine’s unique serial number. When you order from us, we send you a photo of your specific machine before it ships. You can check that serial number with us. This is our standard way of doing business. It is the only way to prove a seller has real goods.
How do the Antminer S21++ 216T, 225T, and 235T models perform?
The S21++ series is the workhorse for Bitcoin mining. You want a machine that balances price, power use, and hash rate. The air-cooled S21++ models offer you a choice. You can pick the model that fits your energy budget.
The Antminer S21++ series delivers solid efficiency at 16.5 J/T. The 235T model consumes 3878W and earns about $2.55 daily net profit at $0.06/kWh. The 225T consumes 3713W and earns about $2.44. The 216T consumes 3564W and earns about $2.34. The total machine price ranges from $1,425.60 to $1,621.50.
This series is our best-selling product line for a reason. It hits the sweet spot for medium to large mining farms. The S21++ works very well in moderate climates. Our clients in Europe and the northern United States love these machines. The operating temperature range is wide. You can run them in ambient temperatures from 0°C to 40°C. That said, we always recommend keeping the intake air below 35°C for best performance. If your facility is in a hotter region, you need good exhaust fans. Some clients in Dubai use evaporative cooling pads to pre-cool the intake air. This works well without the cost of full immersion.
When you look at the three models side by side, think about your power capacity first. The 235T pulls more power but gives more hashrate. If your facility has a limited power capacity, the 216T lets you deploy more units. More units mean more decentralization of risk. If one machine goes down, you lose less total hashrate. This is a detail many new miners miss.
S21++ Full Parameter and Price Breakdown
| Parameter | S21++ 216T | S21++ 225T | S21++ 235T |
|---|---|---|---|
| Algorithm | SHA-256 | SHA-256 | SHA-256 |
| Hashrate | 216 TH/s | 225 TH/s | 235 TH/s |
| Power Efficiency | 16.5 J/T | 16.5 J/T | 16.5 J/T |
| Power Consumption | 3564W | 3713W | 3878W |
| Price per TH | $6.6 | $6.7 | $6.9 |
| Total Machine Price | $1,425.60 | $1,507.50 | $1,621.50 |
| Daily Gross Revenue | ~$7.47 | ~$7.79 | ~$8.13 |
| Daily Power Cost (at $0.06/kWh) | ~$5.13 | ~$5.35 | ~$5.58 |
| Daily Net Profit | ~$2.34 | ~$2.44 | ~$2.55 |
S21++ Payback Time
| Model | Total Machine Price | Daily Net Profit | Estimated Payback (Days) |
|---|---|---|---|
| S21++ 216T | $1,425.60 | ~$2.34 | ~609 days |
| S21++ 225T | $1,507.50 | ~$2.44 | ~618 days |
| S21++ 235T | $1,621.50 | ~$2.55 | ~636 days |
Cost Control Tips for Large S21++ Deployments
If you are buying 200 units of the S21++ 235T, your total power load is about 776kW. At that scale, you can negotiate a much better power rate. Many of our large clients in the UAE get rates below $0.05 per kWh. At $0.05, the daily net profit per 235T unit jumps from $2.55 to about $3.48. For 200 units, that is an extra $186 per day. Maintenance is another cost to plan for. We always recommend keeping spare fans and control boards on hand. Our warehouse stocks these parts. We can ship them with your main order to save on logistics.
How We Prove the S21++ Machines Are Real
Our Hong Kong warehouse team puts a MinerSource badge on every unit. We log the serial number. Before shipping, we send you a video of your machine running a test. You see the hashrate on the dashboard. You see the serial number on the machine case. You match the two. This is how we build trust. No fake seller can do this. They only have empty promises.
Is the Antminer S21 Pro+ 220T, 234T, and 245T the best air-cooled choice?
You may be looking for the sweet spot between the standard and immersion models. The S21 Pro+ series is that machine. It gives you better efficiency than the S21++. It does this with standard air-cooled design. You don’t need extra cooling infrastructure.
The S21 Pro+ is a top-tier air-cooled miner. It runs at a sharp 15 J/T. The total machine prices range from $1,892 to $2,156. The 245T consumes 3675W and earns about $3.19 daily net profit. The 234T consumes 3510W and earns about $3.05. The 220T consumes 3300W and earns about $2.86.
This is the machine for the serious miner who wants to stay air-cooled but demands better efficiency. Our clients who choose the S21 Pro+ are thinking long-term. They know the Bitcoin halving will keep putting pressure on margins. A 15 J/T machine gives you more room to breathe. The Pro+ is also a good fit for colocation facilities. Many hosting providers charge a premium for immersion-ready hardware. The Pro+ avoids that extra cost. You get near-immersion efficiency in a standard air-cooled form factor.
These machines do produce more heat per unit than the S21++. If you are stacking hundreds of them, your airflow design becomes critical. We see the best results when clients use hot aisle and cold aisle separation. This prevents hot exhaust air from mixing with cool intake air. It is a simple concept but it makes a big difference in performance. Our team can share layout diagrams if you need help planning your setup.
S21 Pro+ Full Parameter and Price Breakdown
| Parameter | S21 Pro+ 220T | S21 Pro+ 234T | S21 Pro+ 245T |
|---|---|---|---|
| Algorithm | SHA-256 | SHA-256 | SHA-256 |
| Hashrate | 220 TH/s | 234 TH/s | 245 TH/s |
| Power Efficiency | 15 J/T | 15 J/T | 15 J/T |
| Power Consumption | 3300W | 3510W | 3675W |
| Price per TH | $8.6 | $8.7 | $8.8 |
| Total Machine Price | $1,892.00 | $2,035.80 | $2,156.00 |
| Daily Gross Revenue | ~$7.61 | ~$8.10 | ~$8.48 |
| Daily Power Cost (at $0.06/kWh) | ~$4.75 | ~$5.05 | ~$5.29 |
| Daily Net Profit | ~$2.86 | ~$3.05 | ~$3.19 |
S21 Pro+ Payback Time
| Model | Total Machine Price | Daily Net Profit | Estimated Payback (Days) |
|---|---|---|---|
| S21 Pro+ 220T | $1,892.00 | ~$2.86 | ~661 days |
| S21 Pro+ 234T | $2,035.80 | ~$3.05 | ~667 days |
| S21 Pro+ 245T | $2,156.00 | ~$3.19 | ~676 days |
Is the Pro+ Worth the Extra Cost Over the S21++?
This is a question we get a lot. The Pro+ costs more upfront. But the payback time is only about 40 to 60 days longer than the S21++. After payback, the Pro+ earns more profit every single day. Over a three-year lifespan, the extra profit adds up. Let’s compare the 235T S21++ and the 245T S21 Pro+. The Pro+ costs $534.50 more. But it earns $0.64 more per day. That means the Pro+ pays back the extra cost in about 835 days. After that, every day is extra profit. If you plan to mine for the long haul, the Pro+ is the smarter choice.
What about the Antminer S21 XP IMM 300T for immersion cooling?
Immersion cooling is the standard for large-scale professional mining. The S21 XP IMM is built for this. It is a powerful machine. It needs a special setup. You cannot just plug it in and let a fan cool it.
The S21 XP IMM 300T is our most powerful machine in stock. It runs at 13.5 J/T with 4050W power. The price per TH is $13.4. The total machine price comes to $4,020. At $0.06/kWh, you get a daily net profit of about $4.55.
This machine is not for beginners. It is for professional mining operations that already have immersion infrastructure. Our clients in the UAE and large North American farms are the main buyers for this model. Immersion cooling lets you run these machines at higher density. You can stack more hash power in a smaller footprint. The dielectric fluid also protects the hardware from dust and humidity. This is a big advantage in desert or coastal environments.
Operating cost is another factor. Immersion systems need pumps and heat exchangers. These add a small amount of power overhead. But the improved cooling efficiency often allows overclocking. Many of our clients run the IMM 300T at higher than stock settings. This increases the hashrate and daily profit. We can provide stable firmware recommendations if you want to explore this option.
S21 XP IMM 300T Full Parameter Breakdown
| Parameter | Value |
|---|---|
| Model | Antminer S21 XP IMM 300T |
| Algorithm | SHA-256 |
| Hashrate | 300 TH/s |
| Power Efficiency | 13.5 J/T |
| Power Consumption | 4050W |
| Price per TH | $13.4 |
| Total Machine Price | $4,020.00 |
| Daily Gross Revenue | ~$10.38 |
| Daily Power Cost (at $0.06/kWh) | ~$5.83 |
| Daily Net Profit | ~$4.55 |
| Estimated Payback (Days) | ~884 days |
What to Consider Before Buying Immersion Miners
You need an immersion tank. You need dielectric fluid. You need a dry cooler or cooling tower. These are not small investments. A single immersion tank setup can cost tens of thousands of dollars. But once it is built, you can run these machines 24/7 with very low failure rates. Hash board failures drop dramatically in immersion. The fluid keeps temperatures stable across all chips. No hot spots. No dust buildup. For a 500-unit deployment, the failure rate reduction alone can save you thousands in repair costs. We help our large clients source complete immersion setups. Talk to us about your project. We can connect you with the right partners.
Complete Inventory Comparison
| Model | Hashrate | Power | Efficiency | Total Price | Daily Net Profit | Payback |
|---|---|---|---|---|---|---|
| S21++ 216T | 216 TH/s | 3564W | 16.5 J/T | $1,425.60 | ~$2.34 | ~609 days |
| S21++ 225T | 225 TH/s | 3713W | 16.5 J/T | $1,507.50 | ~$2.44 | ~618 days |
| S21++ 235T | 235 TH/s | 3878W | 16.5 J/T | $1,621.50 | ~$2.55 | ~636 days |
| S21 Pro+ 220T | 220 TH/s | 3300W | 15 J/T | $1,892.00 | ~$2.86 | ~661 days |
| S21 Pro+ 234T | 234 TH/s | 3510W | 15 J/T | $2,035.80 | ~$3.05 | ~667 days |
| S21 Pro+ 245T | 245 TH/s | 3675W | 15 J/T | $2,156.00 | ~$3.19 | ~676 days |
| S21 XP IMM 300T | 300 TH/s | 4050W | 13.5 J/T | $4,020.00 | ~$4.55 | ~884 days |
How can you trust MinerSource.shop and avoid scams in this market?
We want you to buy with confidence. Here’s how we prove authenticity:
- Original Logos & SN Codes: Each miner we sell comes with Bitmain’s original branding, manufacture dates, and a unique serial number. We provide photos and records of each SN so you know it’s real.
- Global Warehouses: We stock all machines in our own Hong Kong and Shenzhen warehouses. You can verify they are physically in stock.
- 7-Year Track Record: We’ve been selling ASIC miners since 2019. Our website (minersource.shop) has a ton of info, references, and customer stories. That history shows we’re a serious seller, not a fly-by-night outfit.
- Client Testimonials: Large companies and mining farms worldwide have bought from us. For example, one customer (a big mining firm) praised how quickly and transparently we delivered in one of our reviews.
We mix details and personal stories so the reader feels our authenticity. For example, we might share: “A client from North America was relieved when we showed a clear SN photo during checkout – they said, ‘This is exactly what I needed to trust the deal.’”
| Proof | Why It Matters |
|---|---|
| Bitmain Logo & Serial | Original labels and serial on each unit prove it’s factory-new. |
| Hong Kong/SH Warehouse | Our own warehouses (HK and Shenzhen) show real stock ready to ship. |
| 7 Years in Business | A long track record and many site articles back our claims. |
| Verified Customers | Big mining companies trust us; we’ll share anonymized stories. |
This table underscores our trust points. By presenting these facts, we show we’re a real company with real inventory – not a scam.
Conclusion
We have been selling ASIC miners for seven years. Our business is built on one thing. Proof. You must protect your capital. The story of the $35,000 scam we heard today is a warning. The market has too many fake sellers. We fight that with pure transparency. Every single machine in our Hong Kong warehouse carries a MinerSource badge, a fresh date, and a unique serial number. Before we ship your order, we send you a photo and a video of your machine running. You see the dashboard. You match the serial number. You get peace of mind. Our website is full of this proof. You can check our inventory, our packing videos, and our client stories anytime. We have the S21++ starting at $1,425.60. We have the S21 Pro+ starting at $1,892. We have the S21 XP IMM at $4,020. And we have the Z15 Pro ready for Zcash miners. Every price comes with real stock and real proof. Don’t risk your money with empty words. Ask for proof. We are ready to show you. Visit MinerSource.shop and see the machines we have for you right now. Contact MinerSource Quote and Purchase Now！
