Bitmain Antminer S21+ Hyd (358Th) vs Canaan AvalonMiner 1066
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21+ Hyd (358Th) | Specification | Canaan AvalonMiner 1066 |
|---|---|---|
| 358.0 TH/s | Hashrate | 50.0 TH/s |
| 5,370 W | Power Consumption | 3,250 W |
| 15.0 J/TH | Efficiency | 65.0 J/TH |
| 50 dB | Noise Level | — |
| 12.8 kg | Weight | 11,400.0 kg |
| 18,322 BTU/hr | BTU Output | 11,089 BTU/hr |
| 44/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Bitmain Antminer S21+ Hyd (358Th)
Canaan AvalonMiner 1066
Based on BTC price of $78,346 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S21+ Hyd (358Th) edges it: 5 of 6 factors go its way (efficiency, hashrate, home mining score, noise level, price-performance). Where it pulls away hardest is 616% more hashrate (358.0 vs 50.0 TH/s). That said, the Canaan AvalonMiner 1066 isn't beaten everywhere — it still wins power consumption. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Here is every spec where the Bitmain Antminer S21+ Hyd (358Th) and Canaan AvalonMiner 1066 actually differ, with the gap quantified:
- Bitmain Antminer S21+ Hyd (358Th) 616% more hashrate (358.0 vs 50.0 TH/s)
- Canaan AvalonMiner 1066 39% better power draw (5,370 vs 3,250 W)
- Bitmain Antminer S21+ Hyd (358Th) 77% better efficiency (15.0 vs 65.0 J/TH)
- Bitmain Antminer S21+ Hyd (358Th) 100% better weight (12.8 vs 11,400.0 kg)
- Bitmain Antminer S21+ Hyd (358Th) 65% more heat output (18,322 vs 11,089 BTU/hr)
- Bitmain Antminer S21+ Hyd (358Th) 100% more home mining score (44.0 vs 22.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitmain Antminer S21+ Hyd (358Th) | Metric | Canaan AvalonMiner 1066 |
|---|---|---|
| $2,757 | Upfront cost (MSRP) | $1,255 |
| $0.02 | Daily net profit | -$6.00 |
| -$2,750 | Net after 1 year | -$3,444 |
| -$2,743 | Net after 2 years | -$5,633 |
| -$2,736 | Net after 3 years | -$7,822 |
| Takes ~394.3 years to pay back at current rates | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
Bitmain Antminer S21+ Hyd (358Th)$6.02/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21+ Hyd (358Th)Score: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21+ Hyd (358Th)15.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21+ Hyd (358Th) or the Canaan AvalonMiner 1066?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21+ Hyd (358Th) is more profitable at $0.02/day compared to $-6.00/day for the Canaan AvalonMiner 1066. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21+ Hyd (358Th) or Canaan AvalonMiner 1066?
The Bitmain Antminer S21+ Hyd (358Th) is quieter at 50 dB compared to the Canaan AvalonMiner 1066 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S21+ Hyd (358Th) vs Canaan AvalonMiner 1066: which fits a residential setup better?
The Bitmain Antminer S21+ Hyd (358Th) scores 44/100 on our Home Mining Score (vs 22/100 for the Canaan AvalonMiner 1066). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S21+ Hyd (358Th) vs Canaan AvalonMiner 1066: how much does the efficiency gap matter?
The Bitmain Antminer S21+ Hyd (358Th) runs at 15.0 J/TH while the Canaan AvalonMiner 1066 runs at 65.0 J/TH — a difference of 50.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 77% better efficiency (15.0 vs 65.0 J/TH).