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Bitmain Antminer S21+ Hyd (395 TH/s)
In stock · $2,632 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 runs at 395 TH/s while drawing 5,925 W, an efficiency of 15 J/TH. It is in stock at $2,632 per unit, delivered and hosted at one of our sites.
More on this machine: Bitmain Antminer S21+ Hyd price history · Bitmain Antminer S21+ Hyd profitability history · The S21+ Hyd is the best-returning machine on our floor
Bitmain Antminer S21+ Hyd profitability
As of Sep 21, 2026, hosted in Argentina at 6.0¢/kWh with 98.7% uptime. Bitcoin $87,031.
| Period | Bitcoin mined | Revenue | Electricity | Profit |
|---|---|---|---|---|
| Daily | 0.000187 BTC | $16.25 | $9.14 | $7.11 |
| Weekly | 0.001307 BTC | $113.76 | $63.98 | $49.77 |
| Monthly | 0.005680 BTC | $494.36 | $278.06 | $216.31 |
| Yearly | 0.068156 BTC | $5,931.72 | $3,336.32 | $2,595.40 |
Electricity per bitcoin mined: $48,951. Year 1 return: 48%.
Bitmain Antminer S21+ Hyd price history
From $7,207 in Feb 2025 to $2,672 in Sep 2026 (-63%).
| Month | Price per unit | Price per TH |
|---|---|---|
| Feb 2025 | $6,721 | $17.02 |
| Mar 2025 | $6,114 | $15.48 |
| Apr 2025 | $5,709 | $14.45 |
| May 2025 | $5,668 | $14.35 |
| Jun 2025 | $5,992 | $15.17 |
| Jul 2025 | $5,668 | $14.35 |
| Aug 2025 | $5,547 | $14.04 |
| Sep 2025 | $5,506 | $13.94 |
| Oct 2025 | $5,425 | $13.74 |
| Nov 2025 | $3,482 | $8.82 |
| Dec 2025 | $3,118 | $7.89 |
| Jan 2026 | $3,158 | $8.00 |
| Feb 2026 | $2,956 | $7.48 |
| Mar 2026 | $3,158 | $8.00 |
| Apr 2026 | $2,753 | $6.97 |
| May 2026 | $2,632 | $6.66 |
| Jun 2026 | $2,611 | $6.61 |
| Jul 2026 | $2,672 | $6.77 |
| Aug 2026 | $2,672 | $6.77 |
| Sep 2026 | $2,672 | $6.77 |
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% | $48,951 | $218 | $4,759 | 55% |
| Nigeria | Hydro-cooled | 3.9¢ | 73.6% | $31,818 | $234 | $5,344 | 53% |
| Argentina | Hydro-cooled | 6.0¢ | 98.7% | $48,951 | $216 | $5,417 | 48% |
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 | 13.8 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 $2,632 per unit ($6.66 per TH/s). Delivered, imported, installed and hosted in Argentina with a two-month hosting deposit, the all-in cost is about $5,417 per machine.
Is the Bitmain Antminer S21+ Hyd (395 TH/s) profitable?
As of Sep 21, 2026, hosted in Argentina at 6.0¢/kWh, the Bitmain Antminer S21+ Hyd (395 TH/s) is calculated to generate $7.11 daily, $216.31 monthly and $2,595.40 yearly after electricity, at a bitcoin price of $87,031. 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 $48,951 in Argentina, and $48,951 in UAE and $31,818 in Nigeria. Bitcoin trades at $87,031, so every coin it mines is made 44% 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 48–55% 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 (6.0¢/kWh, 99.3% uptime), Nigeria (3.9¢/kWh, 73.6% 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 $7,207 in Feb 2025 and $2,672 as of Sep 2026, down 63%. Over that time it ranged from $2,551 to $7,207.
When was the Bitmain Antminer S21+ Hyd released?
Bitmain announced the Bitmain Antminer S21+ Hyd in Nov 2024.
Alternatives to the Bitmain Antminer S21+ Hyd
- Bitmain Antminer S21+ Hyd (358 TH/s)
- Bitdeer SealMiner A3 Hyd (500 TH/s)
- Canaan Avalon A1566HA 2U (500 TH/s)
- Canaan Avalon A1566HA 2U (460 TH/s)
- Bitmain Antminer S21e XP Hyd 3U (860 TH/s)
- Bitmain Antminer S21e XP Hyd (430 TH/s)
Also sold as Bitmain Antminer S21+ Hyd (358 TH/s), Bitmain Antminer S21+ Hyd (338 TH/s), Bitmain Antminer S21+ Hyd (319 TH/s).