Antminer K7 vs Bitmain Antminer S21e Hyd (288Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Bitmain Antminer S21e Hyd (288Th) |
|---|---|---|
| 63.5 TH/s | Taux de hachage | 288.0 TH/s |
| 3,080 W | Consommation électrique | 4,896 W |
| 48.5 J/TH | Efficiency | 17.0 J/TH |
| 75 dB | Niveau de bruit | 50 dB |
| 14.0 kg | Weight | 13.8 kg |
| 10,509 BTU/hr | BTU Output | 16,705 BTU/hr |
| 36/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| Eaglesong | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Bitmain Antminer S21e Hyd (288Th)
Based on BTC price of $78,158 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S21e Hyd (288Th) edges it: 5 of 6 factors go its way (efficacité, hashrate, score de minage domestique, niveau sonore, rapport qualité-prix). Its biggest concrete edge: 354% more hashrate (63.5 vs 288.0 TH/s). That said, the Antminer K7 isn't beaten everywhere — it still wins consommation électrique. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Antminer K7 and Bitmain Antminer S21e Hyd (288Th) actually differ, with the gap quantified:
- Bitmain Antminer S21e Hyd (288Th) 354% more hashrate (63.5 vs 288.0 TH/s)
- Antminer K7 37% better power draw (3,080 vs 4,896 W)
- Bitmain Antminer S21e Hyd (288Th) 65% better efficacité (48.5 vs 17.0 J/TH)
- Bitmain Antminer S21e Hyd (288Th) 33% better noise (75.0 vs 50.0 dB)
- Bitmain Antminer S21e Hyd (288Th) 1% better weight (14.0 vs 13.8 kg)
- Bitmain Antminer S21e Hyd (288Th) 59% more heat output (10,509 vs 16,705 BTU/hr)
- Bitmain Antminer S21e Hyd (288Th) 22% more score de minage domestique (36.0 vs 44.0)
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.
| Antminer K7 | Metric | Bitmain Antminer S21e Hyd (288Th) |
|---|---|---|
| $3,500 | Upfront cost (MSRP) | $1,498 |
| -$5.11 | Daily net profit | -$1.39 |
| -$5,364 | Net after 1 year | -$2,006 |
| -$7,229 | Net after 2 years | -$2,514 |
| -$9,093 | Net after 3 years | -$3,022 |
| 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
Bitmain Antminer S21e Hyd (288Th)Score: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S21e Hyd (288Th)17.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer K7 or Bitmain Antminer S21e Hyd (288Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e Hyd (288Th) is more profitable at $-1.39/day compared to $-5.11/day for the Antminer K7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer K7 or the Bitmain Antminer S21e Hyd (288Th) better for noise-sensitive spaces?
The Bitmain Antminer S21e Hyd (288Th) is quieter at 50 dB compared to the Antminer K7 at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer K7 vs Bitmain Antminer S21e Hyd (288Th): which fits a residential setup better?
The Bitmain Antminer S21e Hyd (288Th) scores 44/100 on our Home Mining Score (vs 36/100 for the Antminer K7). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer K7 vs Bitmain Antminer S21e Hyd (288Th): how much does the efficiency gap matter?
The Antminer K7 runs at 48.5 J/TH while the Bitmain Antminer S21e Hyd (288Th) runs at 17.0 J/TH — a difference of 31.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 65% better efficacité (48.5 vs 17.0 J/TH).