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Bitmain Antminer S21j XP Hyd (495 TH/s)
In stock · $5,733 per unit · Bitmain · Hydro-cooled · SHA-256
The Bitmain Antminer S21j XP Hyd (495 TH/s) is a hydro-cooled SHA-256 bitcoin ASIC miner from Bitmain released in Mar 2026. It runs at 495 TH/s while drawing 5,940 W, an efficiency of 12 J/TH. It is in stock at $5,733 per unit, delivered and hosted at one of our sites.
More on this machine: Bitmain Antminer S21j XP Hyd price history · Bitmain Antminer S21j XP Hyd profitability history
Bitmain Antminer S21j XP 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 | 0.000234 BTC | $20.37 | $9.16 | $11.20 |
| Weekly | 0.001638 BTC | $142.56 | $64.14 | $78.42 |
| Monthly | 0.007118 BTC | $619.52 | $278.74 | $340.78 |
| Yearly | 0.085411 BTC | $7,433.42 | $3,344.49 | $4,088.93 |
Electricity per bitcoin mined: $39,158. Year 1 return: 43%.
Bitmain Antminer S21j XP Hyd price history
From $5,987 in Apr 2026 to $5,632 in Sep 2026 (-6%).
| Month | Price per unit | Price per TH |
|---|---|---|
| Apr 2026 | $5,987 | $12.10 |
| May 2026 | $6,799 | $13.74 |
| Jun 2026 | $6,291 | $12.71 |
| Jul 2026 | $6,393 | $12.92 |
| Aug 2026 | $6,393 | $12.92 |
| Sep 2026 | $5,632 | $11.38 |
Where to host the Bitmain Antminer S21j XP 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% | $39,158 | $343 | $8,171 | 50% |
| Nigeria | Hydro-cooled | 3.9¢ | 73.6% | $25,452 | $327 | $9,532 | 41% |
| Argentina | Hydro-cooled | 6.0¢ | 98.7% | $39,158 | $341 | $9,604 | 43% |
Bitmain Antminer S21j XP Hyd specifications
| Specification | Value |
|---|---|
| Manufacturer | Bitmain |
| Model | Bitmain Antminer S21j XP Hyd |
| Release date | Mar 2026 |
| Algorithm | SHA-256 |
| Hashrate | 495 TH/s |
| Power consumption | 5940 W |
| Efficiency | 12 J/TH |
| Cooling | Hydro-cooled |
| Dimensions | 410 x 170 x 209 mm (approx.) |
| Weight | 16.2 kg (approx.) |
Bitmain Antminer S21j XP Hyd FAQ
How much does the Bitmain Antminer S21j XP Hyd cost?
The Bitmain Antminer S21j XP Hyd (495 TH/s) costs $5,733 per unit ($11.58 per TH/s). Delivered, imported, installed and hosted in Argentina with a two-month hosting deposit, the all-in cost is about $9,604 per machine.
Is the Bitmain Antminer S21j XP Hyd (495 TH/s) profitable?
As of Sep 21, 2026, hosted in Argentina at 6.0¢/kWh, the Bitmain Antminer S21j XP Hyd (495 TH/s) is calculated to generate $11.20 daily, $340.78 monthly and $4,088.93 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 S21j XP Hyd?
Electricity to mine one bitcoin with the Bitmain Antminer S21j XP Hyd costs about $39,158 in Argentina, and $39,158 in UAE and $25,452 in Nigeria. Bitcoin trades at $87,031, so every coin it mines is made 55% below the price of buying one.
What is the year 1 return of the Bitmain Antminer S21j XP Hyd?
At current bitcoin price and difficulty, the Bitmain Antminer S21j XP Hyd returns 41–50% 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 S21j XP Hyd?
The Bitmain Antminer S21j XP Hyd produces 495 TH/s of SHA-256 hashrate and consumes 5,940 W, giving an efficiency of 12 J/TH. Its hydro cooling loop adds about 200 W for water pumps.
What are the dimensions and weight of the Bitmain Antminer S21j XP Hyd?
The Bitmain Antminer S21j XP Hyd measures about 410 x 170 x 209 mm and weighs around 16.2 kg.
Is the Bitmain Antminer S21j XP Hyd air-cooled or hydro-cooled?
The Bitmain Antminer S21j XP 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 S21j XP Hyd be hosted?
We can host the Bitmain Antminer S21j XP 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 S21j XP Hyd changed?
The Bitmain Antminer S21j XP Hyd sold for $5,987 in Apr 2026 and $5,632 as of Sep 2026, down 6%. Over that time it ranged from $5,632 to $6,799.
When was the Bitmain Antminer S21j XP Hyd released?
Bitmain announced the Bitmain Antminer S21j XP Hyd in Mar 2026.