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.
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ROI Analysis
Based on current network difficulty. Assumes Abundant Miners 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 Sabre56. Abundant Miners 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.
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