
Antminer S21+ 235 TH/s
The Bitmain Antminer S21+ 235T belongs to the latest generation of high-efficiency Bitcoin ASIC miners. With 235 TH/s hashrate at only 3,500 W draw and an energy efficiency of 14.9 J/TH — ideal for professional mining hosting with low electricity costs.
from €0.062/kWh · hydropower
from €0.066/kWh · 97% uptime
We get back to you personally within 24 hours.
Full specifications
| Algorithm | SHA-256 |
| Hashrate | 235 TH/s |
| Power consumption | 3.500 W |
| Efficiency | 14,9 J/TH |
| Cooling | Air |
| Connectors | 4x 6-Pin |
| Dimensions | 400 x 195 x 290 mm |
| Weight | 14,5 kg |
Buy Antminer S21+ 235T — Is the Investment Worth It?
The Antminer S21+ 235T is the current model of Bitmain's Antminer S21 series — the direct successor to the original Antminer S21 (200 TH/s) released in August 2023. With 235 TH/s hashrate and improved 14.9 J/TH efficiency (versus 17.5 J/TH on the base S21), the Antminer S21+ offers the best price-performance ratio across the entire S21 family. Anyone looking to buy an Antminer S21 in 2026 gets the most recent and efficient version of the model in the S21+ 235T, with better power draw and higher hashrate per unit than the previous generation. Combined with professional hosting, the Antminer S21+ unlocks its full potential as a high-yield mining investment.
Profitability with hosting power rates
Daily power costs of the S21+ at hosting rates of €0.062/kWh are around €5.21. Running the same miner at home in Europe at €0.30/kWh would cost roughly €25.20 per day. The €20 daily delta shows why professional hosting is essential for profitable mining — for the S21+ it adds up to over €7,000 per year.
Compared directly to the Sealminer A2 224T, the S21+ delivers 11 TH/s more hashrate at almost identical efficiency (14.9 vs. 14.7 J/TH). Versus the Whatsminer M60S+ it provides 29 TH/s more — the S21+ hits the sweet spot between price and performance.
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.
Frequently asked questions about the Antminer S21+ 235T
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.


