Bitmain Antminer S21 Immersion (227Th) vs Ebang Ebit E9.2
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 Immersion (227Th) | Specification | Ebang Ebit E9.2 |
|---|---|---|
| 227.0 TH/s | Hashrate | 12.0 TH/s |
| 3,623 W | Power Consumption | 1,320 W |
| 16.0 J/TH | Efficiency | 110.0 J/TH |
| 75 dB | Noise Level | — |
| 17.2 kg | Weight | 4,700.0 kg |
| 12,362 BTU/hr | BTU Output | 4,504 BTU/hr |
| 30/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Ebang |
Profitability Comparison
Bitmain Antminer S21 Immersion (227Th)
Ebang Ebit E9.2
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 S21 Immersion (227Th), which leads on 3 of 5 weighted factors (efficiency, hashrate, noise level). The standout gap is 1792% more hashrate (227.0 vs 12.0 TH/s) in the Bitmain Antminer S21 Immersion (227Th)'s favour. The Ebang Ebit E9.2 holds the edge in power consumption and home mining score. 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 Immersion (227Th) and Ebang Ebit E9.2 actually differ, with the gap quantified:
- Bitmain Antminer S21 Immersion (227Th) 1792% more hashrate (227.0 vs 12.0 TH/s)
- Ebang Ebit E9.2 64% better power draw (3,623 vs 1,320 W)
- Bitmain Antminer S21 Immersion (227Th) 85% better efficiency (16.0 vs 110.0 J/TH)
- Bitmain Antminer S21 Immersion (227Th) 100% better weight (17.2 vs 4,700.0 kg)
- Bitmain Antminer S21 Immersion (227Th) 174% more heat output (12,362 vs 4,504 BTU/hr)
- Ebang Ebit E9.2 3% more home mining score (30.0 vs 31.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer S21 Immersion (227Th) | Metric | Ebang Ebit E9.2 |
|---|---|---|
| $3,269 | Upfront cost (MSRP) | — |
| -$0.43 | Daily net profit | -$2.73 |
| -$3,427 | Net after 1 year | -$997 |
| -$3,585 | Net after 2 years | -$1,994 |
| -$3,743 | Net after 3 years | -$2,991 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
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
Ebang Ebit E9.2Score: 31/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer S21 Immersion (227Th)16.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21 Immersion (227Th) or the Ebang Ebit E9.2?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 Immersion (227Th) is more profitable at $-0.43/day compared to $-2.73/day for the Ebang Ebit E9.2. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S21 Immersion (227Th) or the Ebang Ebit E9.2 better for noise-sensitive spaces?
The Bitmain Antminer S21 Immersion (227Th) is quieter at 75 dB compared to the Ebang Ebit E9.2 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S21 Immersion (227Th) vs Ebang Ebit E9.2: which fits a residential setup better?
The Ebang Ebit E9.2 scores 31/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S21 Immersion (227Th)). 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 S21 Immersion (227Th) and Ebang Ebit E9.2 on J/TH?
The Bitmain Antminer S21 Immersion (227Th) runs at 16.0 J/TH while the Ebang Ebit E9.2 runs at 110.0 J/TH — a difference of 94.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 85% better efficiency (16.0 vs 110.0 J/TH).
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