Bitmain Antminer S21+ Hyd (358Th) vs Canaan Avalon A15Pro-218T
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21+ Hyd (358Th) | Specification | Canaan Avalon A15Pro-218T |
|---|---|---|
| 358.0 TH/s | Hashrate | 218.0 TH/s |
| 5,370 W | Power Consumption | 3,662 W |
| 15.0 J/TH | Efficiency | 16.8 J/TH |
| 50 dB | Noise Level | 75 dB |
| 12.8 kg | Weight | 14.9 kg |
| 18,322 BTU/hr | BTU Output | 12,495 BTU/hr |
| 44/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Bitmain Antminer S21+ Hyd (358Th)
Canaan Avalon A15Pro-218T
Based on BTC price of $79,123 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21+ Hyd (358Th) wins on 5 of 6 factors (efficiency, hashrate, home mining score, noise level, price-performance). Where it pulls away hardest is 64% more hashrate (358 vs 218 TH/s). That said, the Canaan Avalon A15Pro-218T 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 Avalon A15Pro-218T actually differ, with the gap quantified:
- Bitmain Antminer S21+ Hyd (358Th) 64% more hashrate (358 vs 218 TH/s)
- Canaan Avalon A15Pro-218T 32% better power draw (5,370 vs 3,662 W)
- Bitmain Antminer S21+ Hyd (358Th) 11% better efficiency (15.0 vs 16.8 J/TH)
- Bitmain Antminer S21+ Hyd (358Th) 33% better noise (50.0 vs 75.0 dB)
- Bitmain Antminer S21+ Hyd (358Th) 14% better weight (12.8 vs 14.9 kg)
- Bitmain Antminer S21+ Hyd (358Th) 47% more heat output (18,322 vs 12,495 BTU/hr)
- Bitmain Antminer S21+ Hyd (358Th) 47% more home mining score (44.0 vs 30.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitmain Antminer S21+ Hyd (358Th) | Metric | Canaan Avalon A15Pro-218T |
|---|---|---|
| $2,757 | Upfront cost (MSRP) | $2,525 |
| $0.15 | Daily net profit | -$0.85 |
| -$2,703 | Net after 1 year | -$2,836 |
| -$2,650 | Net after 2 years | -$3,146 |
| -$2,596 | Net after 3 years | -$3,457 |
| Takes ~51.3 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)$1.00/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 Avalon A15Pro-218T?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21+ Hyd (358Th) is more profitable at $0.15/day compared to $-0.85/day for the Canaan Avalon A15Pro-218T. 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 Avalon A15Pro-218T?
The Bitmain Antminer S21+ Hyd (358Th) is quieter at 50 dB compared to the Canaan Avalon A15Pro-218T at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21+ Hyd (358Th) or Canaan Avalon A15Pro-218T?
The Bitmain Antminer S21+ Hyd (358Th) scores 44/100 on our Home Mining Score (vs 30/100 for the Canaan Avalon A15Pro-218T). 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 Avalon A15Pro-218T: how much does the efficiency gap matter?
The Bitmain Antminer S21+ Hyd (358Th) runs at 15.0 J/TH while the Canaan Avalon A15Pro-218T runs at 16.8 J/TH — a difference of 1.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 11% better efficiency (15.0 vs 16.8 J/TH).