Home / Bitcoin miners / Bitmain Antminer S21
Sold out · last price $860 per unit · Bitmain · Air-cooled · SHA-256
The Bitmain Antminer S21 (200 TH/s) is a air-cooled SHA-256 bitcoin ASIC miner from Bitmain released in Aug 2023. It runs at 200 TH/s while drawing 3,500 W, an efficiency of 17.5 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 price history · Bitmain Antminer S21 profitability history · What 910 days on an Antminer S21 actually produced
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 | 0.000095 BTC | $8.23 | $5.22 | $3.01 |
| Weekly | 0.000662 BTC | $57.60 | $36.56 | $21.04 |
| Monthly | 0.002876 BTC | $250.31 | $158.89 | $91.42 |
| Yearly | 0.034510 BTC | $3,003.40 | $1,906.47 | $1,096.93 |
Electricity per bitcoin mined: $55,245. Year 1 return: 48%.
From $2,973 in Oct 2023 to $1,435 in Feb 2026 (-52%).
| Month | Price per unit | Price per TH |
|---|---|---|
| Oct 2023 | $2,993 | $14.97 |
| Nov 2023 | $4,428 | $22.14 |
| Jan 2024 | $4,244 | $21.22 |
| Feb 2024 | $4,162 | $20.81 |
| Mar 2024 | $3,977 | $19.89 |
| Apr 2024 | $3,813 | $19.07 |
| May 2024 | $3,690 | $18.45 |
| Jun 2024 | $3,649 | $18.25 |
| Jul 2024 | $3,485 | $17.43 |
| Aug 2024 | $3,557 | $17.78 |
| Sep 2024 | $3,526 | $17.63 |
| Oct 2024 | $3,301 | $16.50 |
| Nov 2024 | $3,567 | $17.84 |
| Dec 2024 | $3,424 | $17.12 |
| Jan 2025 | $3,198 | $15.99 |
| Feb 2026 | $1,435 | $7.18 |
| Site | Cooling | Rate | Uptime | Cost per BTC | Profit per month | All-in per unit | Year 1 return |
|---|---|---|---|---|---|---|---|
| UAE | Immersion | 6.0¢ | 99.3% | $55,245 | $92 | $2,818 | 39% |
| Nigeria | Air-cooled | 3.9¢ | 73.6% | $35,909 | $110 | $2,295 | 57% |
| Argentina | Air-cooled | 6.0¢ | 98.7% | $55,245 | $91 | $2,283 | 48% |
| Specification | Value |
|---|---|
| Manufacturer | Bitmain |
| Model | Bitmain Antminer S21 |
| Release date | Aug 2023 |
| Algorithm | SHA-256 |
| Hashrate | 200 TH/s |
| Power consumption | 3500 W |
| Efficiency | 17.5 J/TH |
| Cooling | Air-cooled |
| Dimensions | 400 x 195 x 290 mm (approx.) |
| Weight | 15.4 kg (approx.) |
The Bitmain Antminer S21 (200 TH/s) is sold out with us; its market price is about $860 per unit ($4.30 per TH/s). Delivered, imported, installed and hosted in Argentina with a two-month hosting deposit, the all-in cost is about $2,283 per machine.
As of Sep 21, 2026, hosted in Argentina at 6.0¢/kWh, the Bitmain Antminer S21 (200 TH/s) is calculated to generate $3.01 daily, $91.42 monthly and $1,096.93 yearly after electricity, at a bitcoin price of $87,031. It always changes with bitcoin's price and network difficulty.
Electricity to mine one bitcoin with the Bitmain Antminer S21 costs about $55,245 in Argentina, and $55,245 in UAE and $35,909 in Nigeria. Bitcoin trades at $87,031, so every coin it mines is made 37% below the price of buying one.
At current bitcoin price and difficulty, the Bitmain Antminer S21 returns 39–57% 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.
The Bitmain Antminer S21 produces 200 TH/s of SHA-256 hashrate and consumes 3,500 W, giving an efficiency of 17.5 J/TH.
The Bitmain Antminer S21 measures about 400 x 195 x 290 mm and weighs around 15.4 kg.
The Bitmain Antminer S21 is air-cooled with fans. In the UAE we run air-cooled machines in immersion tanks instead, which keeps them cool in desert heat.
We can host the Bitmain Antminer S21 in UAE (6.0¢/kWh, 99.3% uptime, immersion), 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.
The Bitmain Antminer S21 sold for $2,973 in Oct 2023 and $1,435 as of Feb 2026, down 52%. Over that time it ranged from $1,230 to $5,043.
Bitmain announced the Bitmain Antminer S21 in Aug 2023.
Also sold as Bitmain Antminer S21 (151 TH/s).