Antminer KS3 vs Goldshell KA BOX
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Goldshell KA BOX |
|---|---|---|
| 9.4 TH/s | Hashrate | 1.2 TH/s |
| 3,500 W | Power Consumption | 400 W |
| 372.3 J/TH | Efficiency | 339.0 J/TH |
| 75 dB | Noise Level | 55 dB |
| 16.1 kg | Weight | 2.6 kg |
| 11,942 BTU/hr | BTU Output | 1,365 BTU/hr |
| 36/100 | Home Mining Score | 62/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | KHeavyHash |
| Bitmain | Manufacturer | Goldshell |
Profitability Comparison
Antminer KS3
Goldshell KA BOX
Based on BTC price of $78,234 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Goldshell KA BOX, which leads on 5 of 6 weighted factors (efficiency, power consumption, home mining score, noise level, price-performance). Where it pulls away hardest is 89% better power draw (3,500 vs 400 W). The Antminer KS3 holds the edge in hashrate. 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 Antminer KS3 and Goldshell KA BOX sit on each measurable spec:
- Antminer KS3 697% more hashrate (9.4 vs 1.2 TH/s)
- Goldshell KA BOX 89% better power draw (3,500 vs 400 W)
- Goldshell KA BOX 9% better efficiency (372 vs 339 J/TH)
- Goldshell KA BOX 27% better noise (75.0 vs 55.0 dB)
- Goldshell KA BOX 84% better weight (16.1 vs 2.6 kg)
- Antminer KS3 775% more heat output (11,942 vs 1,365 BTU/hr)
- Goldshell KA BOX 72% more home mining score (36.0 vs 62.0)
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 KS3 | Metric | Goldshell KA BOX |
|---|---|---|
| $8,000 | Upfront cost (MSRP) | $305 |
| -$8.06 | Daily net profit | -$0.92 |
| -$10,942 | Net after 1 year | -$640 |
| -$13,885 | Net after 2 years | -$975 |
| -$16,827 | Net after 3 years | -$1,310 |
| 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
Goldshell KA BOXScore: 62/100. 55 dB noise level.
Best for Efficiency
Goldshell KA BOX339.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer KS3 or the Goldshell KA BOX?
At the current BTC price and a $0.10/kWh electricity rate, the Goldshell KA BOX is more profitable at $-0.92/day compared to $-8.06/day for the Antminer KS3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer KS3 or the Goldshell KA BOX better for noise-sensitive spaces?
The Goldshell KA BOX is quieter at 55 dB compared to the Antminer KS3 at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer KS3 or Goldshell KA BOX?
The Goldshell KA BOX scores 62/100 on our Home Mining Score (vs 36/100 for the Antminer KS3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Antminer KS3 and Goldshell KA BOX?
The Antminer KS3 runs at 372.3 J/TH while the Goldshell KA BOX runs at 339.0 J/TH — a difference of 33.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 9% better efficiency (372 vs 339 J/TH).