Antminer S21 XP Hydro Review and Specs 2026
Bitmain · Released 2024-10 · Hydro-cooled Bitcoin ASIC
Full Specifications
| Manufacturer | Bitmain |
| Model | Antminer S21 XP Hydro |
| Algorithm | SHA-256 |
| Cooling Type | Hydro Cooling |
| Hashrate | 473 TH/s |
| Power Consumption | 5,676 W |
| Efficiency | 12.0 J/TH |
| Noise Level | 45 dB |
| Dimensions | 400×195×290 mm |
| Weight | 16.8 kg |
| Est. Market Price | $9,500 |
| Release Date | 2024-10 |
| Spec Confidence | ✓ Verified |
Where to Buy Antminer S21 XP Hydro
Compare prices across trusted ASIC marketplaces. Prices vary — check each source for current availability.
Large used ASIC inventory. Good for budget buyers.
Shop now →Curated new and refurbished hardware with verified specs.
Shop now →Direct from manufacturer. Warranty included. Lead times vary.
Shop now →Affiliate disclosure: Lightning Mines may earn a commission on purchases through some links. This does not affect our reviews or recommendations.
ROI Analysis
Based on current network difficulty. Assumes Abundant Mines hosting at $225/month flat fee.
Pros & Cons
Pros
- +473 TH/s — highest hashrate of any commercially available miner
- +12 J/TH class-leading efficiency for hydro
- +Near-silent at 45 dB
- +Maximum revenue per rack unit in hydro facilities
Cons
- −Requires immersion or hydro infrastructure (not air-cooled)
- −Very high unit price (~$9,500)
- −Limited hosting provider compatibility
- −Higher infrastructure investment required
Best For / Worst For
Industrial-scale immersion or hydro facilities seeking maximum hashrate per unit with top-tier efficiency
Operators without dedicated hydro/immersion infrastructure — very high infrastructure barrier
Frequently Asked Questions
Is the Antminer S21 XP Hydro profitable in 2026?
Profitability depends on live BTC price and network difficulty. At $100,000 BTC the Antminer S21 XP Hydro generates approximately 26.14 USD per day gross revenue at 473 TH/s. With typical hosted electricity costs, net daily profit depends heavily on your hosting rate. Use our calculator above for your specific scenario.
How much does the Antminer S21 XP Hydro earn per day?
The Antminer S21 XP Hydro mines approximately 0.00026139 BTC per day at current network difficulty (~113.7 EH). At $100,000 per BTC that's roughly $26 gross per day before electricity and hosting costs. Check the live calculator above for current BTC price.
What hosting providers support the Antminer S21 XP Hydro?
The Antminer S21 XP Hydro uses Hydro Cooling. Compatible hosting providers include Simple Mining. Abundant Mines is recommended for air-cooled miners at a flat $225/month all-in rate.
What is the efficiency of the Antminer S21 XP Hydro?
The Antminer S21 XP Hydro achieves 12 J/TH (joules per terahash), meaning it uses 12 joules of energy for every terahash of mining power. This is excellent efficiency — among the best available.
Running the numbers on Antminer S21 XP Hydro?
Use our Deal Analyzer to see real monthly profit at your hosting rate. Pre-filled with Antminer S21 XP Hydro specs.
Run the Numbers
Use our full profitability calculator pre-filled with Antminer S21 XP Hydro specs.
Calculate ROIBuy This Miner →Got a Deal on Antminer S21 XP Hydro?
Score your deal in 60 seconds — hardware price, hosting rate, and ROI all analyzed.
Analyze My Deal →