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Bitmain Antminer S21+ Hyd (395 TH/s)
In stock · $5,132 all-in, delivered, installed and hosted in Argentina · 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 runs at 395 TH/s while drawing 5,925 W, an efficiency of 15 J/TH. It is in stock, delivered and hosted at one of our sites.
More on this machine: Bitmain Antminer S21+ Hyd price history · Bitmain Antminer S21+ Hyd profitability history · Antminer S21+ Hyd review: 395 TH/s in one box, at the best entry price it has had · The S21+ Hyd is the best-returning machine on our floor
Part of the Bitmain Antminer S21+ line: Bitmain Antminer S21+ price, hosting and profitability
Bitmain Antminer S21+ Hyd profitability
As of Nov 1, 2026, hosted in Argentina at 6.5¢/kWh with 98.7% uptime. Bitcoin $78,543.
| Period | Bitcoin mined | Revenue | Electricity | Profit |
|---|---|---|---|---|
| Daily | 0.000166 BTC | $13.05 | $9.90 | $3.15 |
| Weekly | 0.001163 BTC | $91.38 | $69.32 | $22.07 |
| Monthly | 0.005056 BTC | $397.12 | $301.23 | $95.89 |
| Yearly | 0.060666 BTC | $4,764.90 | $3,614.35 | $1,150.55 |
Electricity per bitcoin mined: $59,578. Year 1 return: 22%.
Bitmain Antminer S21+ Hyd price history
From $7,383 in Feb 2025 to $2,737 in Sep 2026 (-63%).
| Month | Price per unit | Price per TH |
|---|---|---|
| Feb 2025 | $6,885 | $17.43 |
| Mar 2025 | $6,263 | $15.86 |
| Apr 2025 | $5,848 | $14.81 |
| May 2025 | $5,807 | $14.70 |
| Jun 2025 | $6,138 | $15.54 |
| Jul 2025 | $5,807 | $14.70 |
| Aug 2025 | $5,682 | $14.39 |
| Sep 2025 | $5,641 | $14.28 |
| Oct 2025 | $5,558 | $14.07 |
| Nov 2025 | $3,567 | $9.03 |
| Dec 2025 | $3,354 | $8.49 |
| Jan 2026 | $3,235 | $8.19 |
| Feb 2026 | $3,028 | $7.67 |
| Mar 2026 | $3,235 | $8.19 |
| Apr 2026 | $2,874 | $7.28 |
| May 2026 | $2,831 | $7.17 |
| Jun 2026 | $2,809 | $7.11 |
| Jul 2026 | $2,737 | $6.93 |
| Aug 2026 | $2,737 | $6.93 |
| 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 | 6.5¢ | 99.3% | $59,578 | $96 | $4,584 | 25% |
| Nigeria | Hydro-cooled | 4.5¢ | 73.6% | $41,246 | $141 | $5,069 | 33% |
| Argentina | Hydro-cooled | 6.5¢ | 98.7% | $59,578 | $96 | $5,132 | 22% |
Bitmain Antminer S21+ Hyd specifications
| Specification | Value |
|---|---|
| Manufacturer | Bitmain |
| Model | Bitmain Antminer S21+ Hyd |
| Release date | Mar 2025 |
| 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 | 13.8 kg (approx.) |
Bitmain Antminer S21+ Hyd FAQ
How much does the Bitmain Antminer S21+ Hyd cost?
The all-in price of the Bitmain Antminer S21+ Hyd (395 TH/s) is about $5,132 per machine, delivered, imported, installed and hosted in Argentina with a two-month hosting deposit. That is the machine itself at $2,737 ($6.93 per TH/s, the Hong Kong price) plus shipping, infrastructure, import duty, customs, setup and the deposit.
Is the Bitmain Antminer S21+ Hyd (395 TH/s) profitable?
As of Nov 1, 2026, hosted in Argentina at 6.5¢/kWh, the Bitmain Antminer S21+ Hyd (395 TH/s) is calculated to generate $3.15 daily, $95.89 monthly and $1,150.55 yearly after electricity, at a bitcoin price of $78,543. 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 $59,578 in Argentina, and $59,578 in UAE and $41,246 in Nigeria. Bitcoin trades at $78,543, so every coin it mines is made 24% 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 22–33% 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 13.8 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 (6.5¢/kWh, 99.3% uptime), Nigeria (4.5¢/kWh, 73.6% uptime) and Argentina (6.5¢/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 $7,383 in Feb 2025 and $2,737 as of Sep 2026, down 63%. Over that time it ranged from $2,696 to $7,383.
When was the Bitmain Antminer S21+ Hyd released?
Bitmain announced the Bitmain Antminer S21+ Hyd in Nov 2024.