Antminer KS5 Pro vs Bitmain Antminer KS5 Pro (21Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS5 Pro | Specification | Bitmain Antminer KS5 Pro (21Th) |
|---|---|---|
| 21.0 TH/s | Hashrate | 21.0 TH/s |
| 3,150 W | Power Consumption | 3,150 W |
| 150.0 J/TH | Efficiency | 150.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.5 kg | Weight | 15.8 kg |
| 10,748 BTU/hr | BTU Output | 10,748 BTU/hr |
| 36/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | KHeavyHash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS5 Pro
Bitmain Antminer KS5 Pro (21Th)
Based on BTC price of $77,349 and current network difficulty as of May 20, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer KS5 Pro (21Th) wins on 1 of 1 factors (price-performance). Cross-check the spec deltas and operating-cost table above against your own electricity rate before deciding.
Spec Deltas
The Antminer KS5 Pro and Bitmain Antminer KS5 Pro (21Th) diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer KS5 Pro 8% better weight (14.5 vs 15.8 kg)
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.
| Antminer KS5 Pro | Metric | Bitmain Antminer KS5 Pro (21Th) |
|---|---|---|
| $15,000 | Upfront cost (MSRP) | $860 |
| -$6.81 | Daily net profit | -$6.81 |
| -$17,487 | Net after 1 year | -$3,347 |
| -$19,973 | Net after 2 years | -$5,833 |
| -$22,460 | Net after 3 years | -$8,320 |
| 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
TieBoth miners are equally suitable for home use.
Best for Efficiency
TieBoth miners have comparable efficiency.
Frequently Asked Questions
Is the Antminer KS5 Pro or Bitmain Antminer KS5 Pro (21Th) more profitable?
Both the Antminer KS5 Pro and Bitmain Antminer KS5 Pro (21Th) produce similar profits at the default electricity rate. The difference may be more significant at your local rate — use the selector above.
Antminer KS5 Pro vs Bitmain Antminer KS5 Pro (21Th): which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Antminer KS5 Pro or the Bitmain Antminer KS5 Pro (21Th)?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Antminer KS5 Pro and Bitmain Antminer KS5 Pro (21Th)?
The Antminer KS5 Pro runs at 150.0 J/TH while the Bitmain Antminer KS5 Pro (21Th) runs at 150.0 J/TH — a difference of 0.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.