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Bitmain Antminer S21+ Hyd (395 TH/s)
In stock · $2,824 per unit · Bitmain · Hydro-cooled · SHA-256
The Bitmain Antminer S21+ Hyd (395 TH/s) is a hydro-cooled SHA-256 bitcoin ASIC miner from Bitmain released in Nov 2024. It hashes at 395 TH/s while drawing 5,925 W, an efficiency of 15 J/TH. It is in stock at $2,824 per unit, delivered and hosted at one of our sites.
Bitmain Antminer S21+ Hyd profitability
As of Sep 17, 2026, hosted in Argentina at 6.0¢/kWh with 98.7% uptime. Bitcoin $77,356.
| Period | Bitcoin mined | Revenue | Electricity | Profit |
|---|---|---|---|---|
| Daily | 0.000193 BTC | $14.96 | $9.14 | $5.82 |
| Weekly | 0.001354 BTC | $104.75 | $63.98 | $40.77 |
| Monthly | 0.005885 BTC | $455.23 | $278.06 | $177.17 |
| Yearly | 0.070610 BTC | $5,462.10 | $3,336.32 | $2,125.78 |
Electricity per bitcoin mined: $47,250. Year 1 return: 36%.
Bitmain Antminer S21+ Hyd price history
From $5,388 in Nov 2025 to $2,737 in Sep 2026 (-49%).
| Month | Price per unit | Price per TH |
|---|---|---|
| Nov 2025 | $3,650 | $9.24 |
| Dec 2025 | $3,346 | $8.47 |
| Jan 2026 | $3,389 | $8.58 |
| Mar 2026 | $3,389 | $8.58 |
| Apr 2026 | $2,868 | $7.26 |
| May 2026 | $2,824 | $7.15 |
| Jun 2026 | $2,803 | $7.10 |
| Jul 2026 | $2,824 | $7.15 |
| Aug 2026 | $2,824 | $7.15 |
| Sep 2026 | $2,737 | $6.93 |
Where to host the Bitmain Antminer S21+ Hyd
| Site | Cooling | Rate | Uptime | Cost per BTC | Profit per month | All-in per unit | Year 1 return |
|---|---|---|---|---|---|---|---|
| UAE | Hydro-cooled | 6.0¢ | 99.3% | $47,250 | $178 | $5,119 | 42% |
| Nigeria | Hydro-cooled | 4.0¢ | 74.7% | $31,500 | $204 | $5,887 | 42% |
| Argentina | Hydro-cooled | 6.0¢ | 98.7% | $47,250 | $177 | $5,825 | 36% |
Bitmain Antminer S21+ Hyd specifications
| Specification | Value |
|---|---|
| Manufacturer | Bitmain |
| Model | Bitmain Antminer S21+ Hyd |
| Release date | Nov 2024 |
| Algorithm | SHA-256 |
| Hashrate | 395 TH/s |
| Power consumption | 5925 W |
| Efficiency | 15 J/TH |
| Cooling | Hydro-cooled |
| Dimensions | 410 x 170 x 209 mm (approx.) |
| Weight | 16.5 kg (approx.) |
Bitmain Antminer S21+ Hyd FAQ
How much does the Bitmain Antminer S21+ Hyd cost?
The Bitmain Antminer S21+ Hyd (395 TH/s) costs $2,824 per unit ($7.15 per TH/s). Delivered, imported, installed and hosted in Argentina with a two-month hosting deposit, the all-in cost is about $5,825 per machine.
Is the Bitmain Antminer S21+ Hyd (395 TH/s) profitable?
As of Sep 17, 2026, hosted in Argentina at 6.0¢/kWh, the Bitmain Antminer S21+ Hyd (395 TH/s) is calculated to generate $5.82 daily, $177.17 monthly and $2,125.78 yearly after electricity, at a bitcoin price of $77,356. It always changes with bitcoin's price and network difficulty.
What does it cost to mine one bitcoin with the Bitmain Antminer S21+ Hyd?
Electricity to mine one bitcoin with the Bitmain Antminer S21+ Hyd costs about $47,250 in Argentina, and $47,250 in UAE and $31,500 in Nigeria. Bitcoin trades at $77,356, so every coin it mines is made 39% below the price of buying one.
What is the year 1 return of the Bitmain Antminer S21+ Hyd?
At current bitcoin price and difficulty, the Bitmain Antminer S21+ Hyd returns 36–42% in its first year at our sites, after electricity, against everything paid up front: the machine, shipping, import, infrastructure, setup and hosting deposit. You keep the machine and every bitcoin it mines. It always changes.
What is the hashrate and power consumption of the Bitmain Antminer S21+ Hyd?
The Bitmain Antminer S21+ Hyd produces 395 TH/s of SHA-256 hashrate and consumes 5,925 W, giving an efficiency of 15 J/TH. Its hydro cooling loop adds about 200 W for water pumps.
What are the dimensions and weight of the Bitmain Antminer S21+ Hyd?
The Bitmain Antminer S21+ Hyd measures about 410 x 170 x 209 mm and weighs around 16.5 kg.
Is the Bitmain Antminer S21+ Hyd air-cooled or hydro-cooled?
The Bitmain Antminer S21+ Hyd is hydro-cooled: water carries heat away from the hashboards, so it runs quietly with no fans and needs a cooling loop with a dry cooler.
Where can the Bitmain Antminer S21+ Hyd be hosted?
We can host the Bitmain Antminer S21+ Hyd in UAE (6.0¢/kWh, 99.3% uptime), Nigeria (4.0¢/kWh, 74.7% uptime) and Argentina (6.0¢/kWh, 98.7% uptime). The bitcoin it mines goes straight to your own wallet.
How has the price of the Bitmain Antminer S21+ Hyd changed?
The Bitmain Antminer S21+ Hyd sold for $5,388 in Nov 2025 and $2,737 as of Sep 2026, down 49%. Over that time it ranged from $2,737 to $5,388.
When was the Bitmain Antminer S21+ Hyd released?
Bitmain announced the Bitmain Antminer S21+ Hyd in Nov 2024.