Antminer S21 Hyd 335TH – Hydro‑Cooling Bitcoin Miner
Antminer S21 Hyd 335TH provides hydro‑cooling Bitcoin mining with high hashrate, energy efficiency, and warranty coverage.
Bitmain Antminer S21 Hyd 335TH Overview
The Antminer S21 Hyd 335TH is Bitmain’s hydro‑cooling Bitcoin miner designed for SHA‑256 coins such as BTC, BCH, and BSV. Unlike air‑cooled rigs, this model integrates advanced coolant circulation to maintain stable operating temperatures. Consequently, miners achieve consistent performance and reduced downtime. Moreover, its efficiency makes it a competitive choice for professional mining farms.
Key Specifications
- Hashrate: 335 TH/s (±3%)
- Power Consumption: ~5300 W (±5%)
- Power Efficiency: ~15.8 J/T
- Algorithm/Coins: SHA‑256 | BTC, BCH, BSV
- Cooling: Hydro‑cooling system
- Networking: RJ45 Ethernet 10/100M
- Dimensions: Standard hydro‑cooling chassis
- Weight: ~16–18 kg
- Voltage: 380–415 V AC, 3‑phase
🛒 Purchasing Guidelines
The Bitmain S21 Hyd 335TH typically costs $7,000–$8,000 per unit, depending on market demand and batch availability. In addition, Bitmain accepts payments in USD, BTC, ETC, and USDT. Orders ship on a SPOT basis within 30–45 working days, ensuring timely deployment. However, buyers must prepare customs documentation because Bitmain does not allow cancellations or refunds after submission.
🚚 Shipping Details
Bitmain dispatches Antminer S21 Hyd units on a first‑paid, first‑shipped basis, rewarding early payment with priority delivery. Furthermore, customers handle customs clearance, while Bitmain provides Certificates of Conformity for compliance.
🛡 Warranty
Each bitmain S21 Hyd 335TH carries a 365‑day warranty. Bitmain covers replacement shipping costs during this period. Nevertheless, improper installation, unauthorized modifications, or resale void the warranty.
⚠️ Buyer Considerations
- Hydro‑cooling requires specialized infrastructure and coolant management.
- Profitability depends not only on Bitcoin’s price but also on network difficulty and electricity rates.
- ROI can fluctuate significantly because mining economics shift with market volatility.













