Bitmain Antminer S21e Hyd (310Th) vs Whatsminer M30S++ (Hydro)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21e Hyd (310Th) | Specification | Whatsminer M30S++ (Hydro) |
|---|---|---|
| 310.0 TH/s | Hashrate | 112.0 TH/s |
| 5,270 W | Power Consumption | 3,472 W |
| 17.0 J/TH | Efficiency | 31.0 J/TH |
| 75 dB | Noise Level | 50 dB |
| 12.8 kg | Weight | 12.0 kg |
| 17,981 BTU/hr | BTU Output | 11,847 BTU/hr |
| 30/100 | Home Mining Score | 50/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S21e Hyd (310Th)
Whatsminer M30S++ (Hydro)
Based on BTC price of $79,091 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S21e Hyd (310Th), which leads on 3 of 6 weighted factors (efficiency, hashrate, price-performance). Its biggest concrete edge: 177% more hashrate (310 vs 112 TH/s). That said, the Whatsminer M30S++ (Hydro) isn't beaten everywhere — it still wins power consumption and home mining score and noise level. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S21e Hyd (310Th) and Whatsminer M30S++ (Hydro) sit on each measurable spec:
- Bitmain Antminer S21e Hyd (310Th) 177% more hashrate (310 vs 112 TH/s)
- Whatsminer M30S++ (Hydro) 34% better power draw (5,270 vs 3,472 W)
- Bitmain Antminer S21e Hyd (310Th) 45% better efficiency (17.0 vs 31.0 J/TH)
- Whatsminer M30S++ (Hydro) 33% better noise (75.0 vs 50.0 dB)
- Whatsminer M30S++ (Hydro) 6% better weight (12.8 vs 12.0 kg)
- Bitmain Antminer S21e Hyd (310Th) 52% more heat output (17,981 vs 11,847 BTU/hr)
- Whatsminer M30S++ (Hydro) 67% more home mining score (30.0 vs 50.0)
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 S21e Hyd (310Th) | Metric | Whatsminer M30S++ (Hydro) |
|---|---|---|
| $1,679 | Upfront cost (MSRP) | $3,000 |
| -$1.37 | Daily net profit | -$4.26 |
| -$2,177 | Net after 1 year | -$4,554 |
| -$2,676 | Net after 2 years | -$6,107 |
| -$3,174 | Net after 3 years | -$7,661 |
| Does not pay back at current rates (negative daily profit) | 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
TieBoth miners produce similar daily profit.
Best for Home Mining
Whatsminer M30S++ (Hydro)Score: 50/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21e Hyd (310Th)17.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21e Hyd (310Th) or the Whatsminer M30S++ (Hydro)?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e Hyd (310Th) is more profitable at $-1.37/day compared to $-4.26/day for the Whatsminer M30S++ (Hydro). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S21e Hyd (310Th) or the Whatsminer M30S++ (Hydro) better for noise-sensitive spaces?
The Whatsminer M30S++ (Hydro) is quieter at 50 dB compared to the Bitmain Antminer S21e Hyd (310Th) at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S21e Hyd (310Th) vs Whatsminer M30S++ (Hydro): which fits a residential setup better?
The Whatsminer M30S++ (Hydro) scores 50/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S21e Hyd (310Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer S21e Hyd (310Th) and Whatsminer M30S++ (Hydro) on J/TH?
The Bitmain Antminer S21e Hyd (310Th) runs at 17.0 J/TH while the Whatsminer M30S++ (Hydro) runs at 31.0 J/TH — a difference of 14.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 45% better efficiency (17.0 vs 31.0 J/TH).
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