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Bitmain Antminer S21 Hyd (335 TH/s)
Sold out · Last price $4,733 all-in, delivered, installed and hosted in Argentina · Bitmain · Hydro-cooled · SHA-256
The Bitmain Antminer S21 Hyd (335 TH/s) is a hydro-cooled SHA-256 bitcoin ASIC miner from Bitmain released in Sep 2023. It runs at 335 TH/s while drawing 5,360 W, an efficiency of 16 J/TH. It is currently sold out; the figures below show what it would earn if hosted with us today.
More on this machine: Bitmain Antminer S21 Hyd price history · Bitmain Antminer S21 Hyd profitability history · Hashprice nearly halved, and the Antminer S21 Hyd still cleared its power every month
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 $77,951.
| Period | Bitcoin mined | Revenue | Electricity | Profit |
|---|---|---|---|---|
| Daily | 0.000141 BTC | $11.02 | $8.99 | $2.03 |
| Weekly | 0.000989 BTC | $77.11 | $62.92 | $14.19 |
| Monthly | 0.004299 BTC | $335.10 | $273.44 | $61.66 |
| Yearly | 0.051580 BTC | $4,020.74 | $3,280.94 | $739.80 |
Electricity per bitcoin mined: $63,608. Year 1 return: 16%.
Bitmain Antminer S21 Hyd price history
From $6,519 in Dec 2023 to $2,146 in Jun 2026 (-67%).
| Month | Price per unit | Price per TH |
|---|---|---|
| Dec 2023 | $6,519 | $19.46 |
| Jan 2024 | $6,710 | $20.03 |
| Feb 2024 | $6,720 | $20.06 |
| Mar 2024 | $6,578 | $19.64 |
| Apr 2024 | $6,120 | $18.27 |
| May 2024 | $6,085 | $18.17 |
| Jun 2024 | $6,402 | $19.11 |
| Jul 2024 | $6,050 | $18.06 |
| Sep 2024 | $5,769 | $17.22 |
| Oct 2024 | $5,628 | $16.80 |
| Nov 2024 | $6,261 | $18.69 |
| Dec 2024 | $6,226 | $18.59 |
| Jan 2025 | $6,015 | $17.96 |
| Feb 2025 | $6,015 | $17.96 |
| May 2026 | $2,146 | $6.41 |
| Jun 2026 | $2,146 | $6.41 |
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% | $63,608 | $62 | $4,240 | 18% |
| Nigeria | Hydro-cooled | 4.5¢ | 73.6% | $44,037 | $109 | $4,687 | 28% |
| Argentina | Hydro-cooled | 6.5¢ | 98.7% | $63,608 | $62 | $4,733 | 16% |
Bitmain Antminer S21 Hyd specifications
| Specification | Value |
|---|---|
| Manufacturer | Bitmain |
| Model | Bitmain Antminer S21 Hyd |
| Release date | Sep 2023 |
| Algorithm | SHA-256 |
| Hashrate | 335 TH/s |
| Power consumption | 5360 W |
| Efficiency | 16 J/TH |
| Cooling | Hydro-cooled |
| Dimensions | 410 x 170 x 209 mm (approx.) |
| Weight | 12.3 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 (335 TH/s) is about $4,733 per machine, delivered, imported, installed and hosted in Argentina with a two-month hosting deposit. That is the machine itself at $2,463 ($7.35 per TH/s, the Hong Kong price) plus shipping, infrastructure, import duty, customs, setup and the deposit. It is sold out with us; these figures use its market price.
Is the Bitmain Antminer S21 Hyd (335 TH/s) profitable?
As of Nov 1, 2026, hosted in Argentina at 6.5¢/kWh, the Bitmain Antminer S21 Hyd (335 TH/s) is calculated to generate $2.03 daily, $61.66 monthly and $739.80 yearly after electricity, at a bitcoin price of $77,951. 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 $63,608 in Argentina, and $63,608 in UAE and $44,037 in Nigeria. Bitcoin trades at $77,951, so every coin it mines is made 18% 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 16–28% 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 335 TH/s of SHA-256 hashrate and consumes 5,360 W, giving an efficiency of 16 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 12.3 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 $6,519 in Dec 2023 and $2,146 as of Jun 2026, down 67%. Over that time it ranged from $2,146 to $6,789.
When was the Bitmain Antminer S21 Hyd released?
Bitmain announced the Bitmain Antminer S21 Hyd in Sep 2023.