Bitmain · Antminer· SHA-256
Antminer S21 Pro 225 TH/s
The Bitmain Antminer S21 Pro 225T belongs to the latest generation of high-efficiency bitcoin ASIC miners. With 225 TH/s hashrate and only 3,713 W power draw, it reaches an energy efficiency of 16.5 J/TH — ideal for professional mining hosting with cheap industrial power.
225 TH/s16.5 J/THAirHosting includedEuropean contractNo setup fees
Price including hosting & setup (net)
🌎
Hosting Asia
from €0.062/kWh · hydropower
from €0.062/kWh · hydropower
On request
🇺🇸
Hosting USA
from €0.066/kWh · 99.2% uptime
from €0.066/kWh · 99.2% uptime
On request
We get back to you personally within 24 hours.
Technical data
Full specifications
| Algorithm | SHA-256 |
| Hashrate | 225 TH/s |
| Power consumption | 3.713 W |
| Efficiency | 16,5 J/TH |
| Cooling | Air |
| Connectors | 4x 6-Pin |
| Dimensions | 400 x 195 x 290 mm |
| Weight | 14,8 kg |
Buy Antminer S21 Pro 225T — Is the Investment Worth It?
The Antminer S21 Pro 225T is the golden middle of Bitmain's Pro series. It pairs the higher reliability and optimized thermal management of the Pro line with a balanced ratio of hashrate to power draw. At 225 TH/s and 3,713 W it suits operators looking for a reliable continuous-operation machine without paying the premium for the top model. The Pro 225T has proven especially stable in professional data centers and is often picked for building mid-sized mining fleets.
Profitability with hosting power rates
At 3,713 W draw, running the Pro 225T in hosting at €0.062/kWh costs about €5.52 per day. At home in Europe at €0.30/kWh, daily costs would be €26.73. The hosting savings of €21+ per day add up to more than €7,700 per year — a decisive factor in this miner's overall profitability.
The Pro 225T draws 16.5 J/TH, sitting between the Pro 220T (16.0 J/TH) and the Pro 234T (16.2 J/TH). Its advantage over the Pro 220T: 5 TH/s more hashrate at similar efficiency. Versus the Whatsminer M61S+ it delivers 5 TH/s more at near-identical power draw.
Why buy at Minenity?
- Professional hosting in USA or Asia included
- No setup fees — installation, cabling, and commissioning free of charge
- Online in 48–72 hours after order
- European contracts with 21 Strategy GmbH (Berlin)
- 24/7 monitoring and maintenance by data center technicians
- Full control over pool, wallet, and configuration
Host this miner directly with us — or use our bitcoin mining calculator to simulate your scenario with the live BTC price and current network difficulty.
FAQ
Frequently asked questions about the Antminer S21 Pro 225T
The Pro 225T offers a balanced ratio of acquisition cost, ongoing power costs, and reliability. In larger orders the small price difference vs. the top model adds up quickly — without giving up much hashrate. That makes it the preferred model for operators starting at 10+ units.
The Pro series is rated for use in professional data centers up to 40°C. The improved thermal management adjusts fans automatically and only minimally throttles hashrate to protect the hardware. In our climate-controlled hosting locations, the miner consistently reaches its full output.
At €0.062/kWh, annual power costs are around €2,015 (€5.52 × 365 days). This is a calculable fixed cost that simplifies profitability planning. Simulate current returns with our bitcoin mining calculator.
Yes, from 5 units we offer individual terms. For larger fleet orders we can negotiate special agreements on both unit price and hosting conditions. Contact us for a custom offer.
By default we run hosting on the ViaBTC pool. We don't currently offer a free pool choice. What you fully control is the wallet your mining rewards are paid out to — the mined bitcoin land directly at your address, without passing through us.
Yes, the power supply (PSU) is integrated. No separate PSU needed — the miner connects directly to the data center power supply.
About 75 dB — comparable to a vacuum cleaner running. Not suitable for home use, which is why we offer professional hosting: your miner runs in the data center and you have no noise at home.
The miner uses the SHA-256 algorithm and can mine Bitcoin (BTC), Bitcoin Cash (BCH), and Bitcoin SV (BSV). Most professional miners choose Bitcoin as the most profitable option.
Yes, as a self-employed individual or business you can depreciate ASIC hardware over 3 years. Consult your tax advisor for your specific situation. For US-based businesses, Section 179 deductions and bonus depreciation may apply to qualifying mining equipment.
Similar miners
You might also like
Not sure? We advise you free of charge.
Which miner fits your strategy and budget? Call us or schedule a personal consultation in English.