Bitmain Antminer S21 Hyd 335T Profitability in 2025

The Bitmain Antminer S21 Hyd 335T profitability in 2025 is among the strongest of any ASIC miner currently available. With a 335 TH/s hash rate and an efficiency of approximately 16 J/TH, this hydro-cooled machine is designed to maximize revenue while minimizing electricity costs — the single biggest factor in Bitcoin mining profitability.

Profitability by Electricity Cost

• $0.04/kWh: Highly profitable — ideal for Quebec or BC hydro-powered operations
• $0.05/kWh: Excellent margins at current Bitcoin difficulty
• $0.07/kWh: Good profitability during bull markets, break-even in bear markets
• $0.09/kWh: Marginal — only profitable when BTC price is elevated
• $0.10/kWh+: Generally unprofitable at current network difficulty

What Affects Profitability?

Bitcoin price is the dominant factor — when BTC rises, so does mining revenue. Network difficulty adjusts every two weeks and can compress margins if hash rate grows faster than price. The Antminer S21 Hyd 335T efficiency of 16 J/TH gives it a significant edge: it stays profitable longer than less efficient machines when difficulty increases.

Daily and Monthly Revenue Estimates

Using WhatToMine with current network data, miners running the S21 Hyd 335T at $0.05/kWh can expect strong daily returns after electricity costs. At $0.04/kWh in Quebec, monthly profit margins are among the best in North America. Always update your calculations with live Bitcoin price and current difficulty.

Order from Captain Mining Canada

Captain Mining provides fast Canadian delivery, full warranty, and expert support to help you get your S21 Hyd 335T running at peak profitability from day one.

Order the Bitmain Antminer S21 Hyd 335T today