Bitmain Antminer KS5 Pro (21Th) vs Iceriver KAS KS0 Ultra
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer KS5 Pro (21Th) | Specification | Iceriver KAS KS0 Ultra |
|---|---|---|
| 21.0 TH/s | Hashrate | 400.0 GH/s |
| 3,150 W | Power Consumption | 100 W |
| 150.0 J/TH | Efficiency | 250.0 J/TH |
| 75 dB | Noise Level | 35 dB |
| 15.8 kg | Weight | 2.5 kg |
| 10,748 BTU/hr | BTU Output | 341 BTU/hr |
| 36/100 | Home Mining Score | 71/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | KHeavyHash |
| Bitmain | Manufacturer | IceRiver |
Profitability Comparison
Bitmain Antminer KS5 Pro (21Th)
Iceriver KAS KS0 Ultra
Based on BTC price of $78,139 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer KS5 Pro (21Th) wins on 3 of 6 factors (efficiency, hashrate, price-performance). The standout gap is 5150% more hashrate (21.0 vs 0.4 TH/s) in the Bitmain Antminer KS5 Pro (21Th)'s favour. That said, the Iceriver KAS KS0 Ultra isn't beaten everywhere — it still wins power consumption and home mining score and noise level. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer KS5 Pro (21Th) and Iceriver KAS KS0 Ultra diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer KS5 Pro (21Th) 5150% more hashrate (21.0 vs 0.4 TH/s)
- Iceriver KAS KS0 Ultra 97% better power draw (3,150 vs 100 W)
- Bitmain Antminer KS5 Pro (21Th) 40% better efficiency (150 vs 250 J/TH)
- Iceriver KAS KS0 Ultra 53% better noise (75.0 vs 35.0 dB)
- Iceriver KAS KS0 Ultra 84% better weight (15.8 vs 2.5 kg)
- Bitmain Antminer KS5 Pro (21Th) 3050% more heat output (10,748 vs 341 BTU/hr)
- Iceriver KAS KS0 Ultra 97% more home mining score (36.0 vs 71.0)
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 KS5 Pro (21Th) | Metric | Iceriver KAS KS0 Ultra |
|---|---|---|
| $860 | Upfront cost (MSRP) | $77 |
| -$6.80 | Daily net profit | -$0.23 |
| -$3,344 | Net after 1 year | -$159 |
| -$5,828 | Net after 2 years | -$242 |
| -$8,311 | Net after 3 years | -$324 |
| 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
Iceriver KAS KS0 UltraScore: 71/100. 35 dB noise level.
Best for Efficiency
Bitmain Antminer KS5 Pro (21Th)150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer KS5 Pro (21Th) or Iceriver KAS KS0 Ultra more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Iceriver KAS KS0 Ultra is more profitable at $-0.23/day compared to $-6.80/day for the Bitmain Antminer KS5 Pro (21Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer KS5 Pro (21Th) vs Iceriver KAS KS0 Ultra: which runs at a lower noise level?
The Iceriver KAS KS0 Ultra is quieter at 35 dB compared to the Bitmain Antminer KS5 Pro (21Th) at 75 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer KS5 Pro (21Th) or the Iceriver KAS KS0 Ultra?
The Iceriver KAS KS0 Ultra scores 71/100 on our Home Mining Score (vs 36/100 for the Bitmain Antminer KS5 Pro (21Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer KS5 Pro (21Th) vs Iceriver KAS KS0 Ultra: how much does the efficiency gap matter?
The Bitmain Antminer KS5 Pro (21Th) runs at 150.0 J/TH while the Iceriver KAS KS0 Ultra runs at 250.0 J/TH — a difference of 100.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 40% better efficiency (150 vs 250 J/TH).