Home / Bitcoin miners / Bitmain Antminer S21 Hyd
Bitmain Antminer S21 Hyd (335 TH/s)
Sold out · last price $2,463 per unit · 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 hashes 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.
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 | 0.000164 BTC | $12.69 | $8.30 | $4.39 |
| Weekly | 0.001148 BTC | $88.84 | $58.08 | $30.76 |
| Monthly | 0.004991 BTC | $386.08 | $252.41 | $133.67 |
| Yearly | 0.059884 BTC | $4,632.42 | $3,028.56 | $1,603.85 |
Electricity per bitcoin mined: $50,573. Year 1 return: 30%.
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% | $50,573 | $134 | $4,670 | 35% |
| Nigeria | Hydro-cooled | 4.0¢ | 74.7% | $33,716 | $165 | $5,365 | 37% |
| Argentina | Hydro-cooled | 6.0¢ | 98.7% | $50,573 | $134 | $5,285 | 30% |
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 | 16.5 kg (approx.) |
Bitmain Antminer S21 Hyd FAQ
How much does the Bitmain Antminer S21 Hyd cost?
The Bitmain Antminer S21 Hyd (335 TH/s) is sold out with us; its market price is about $2,463 per unit ($7.35 per TH/s). Delivered, imported, installed and hosted in Argentina with a two-month hosting deposit, the all-in cost is about $5,285 per machine.
Is the Bitmain Antminer S21 Hyd (335 TH/s) profitable?
As of Sep 17, 2026, hosted in Argentina at 6.0¢/kWh, the Bitmain Antminer S21 Hyd (335 TH/s) is calculated to generate $4.39 daily, $133.67 monthly and $1,603.85 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 $50,573 in Argentina, and $50,573 in UAE and $33,716 in Nigeria. Bitcoin trades at $77,356, so every coin it mines is made 35% 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 30–37% 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 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.
When was the Bitmain Antminer S21 Hyd released?
Bitmain announced the Bitmain Antminer S21 Hyd in Sep 2023.