iBeLink K3 mini (5TH) vs Goldshell KD Box II
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| iBeLink K3 mini (5TH) | Specification | Goldshell KD Box II |
|---|---|---|
| 5.0 TH/s | Hashrate | 5.0 TH/s |
| 290 W | Power Consumption | 400 W |
| 58.0 J/TH | Efficiency | 80.0 J/TH |
| — | Noise Level | — |
| 2.2 kg | Weight | 2.0 kg |
| 990 BTU/hr | BTU Output | 1,365 BTU/hr |
| 31/100 | Home Mining Score | 34/100 |
| — | Release Year | — |
| Blake2s | Algorithm | Blake2s |
| iBeLink | Manufacturer | Goldshell |
Profitability Comparison
iBeLink K3 mini (5TH)
Goldshell KD Box II
Based on BTC price of $78,257 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the iBeLink K3 mini (5TH) wins on 2 of 4 factors (efficiency, power consumption). Where it pulls away hardest is 28% better efficiency (58.0 vs 80.0 J/TH). The Goldshell KD Box II holds the edge in home mining score and price-performance. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The iBeLink K3 mini (5TH) and Goldshell KD Box II diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- iBeLink K3 mini (5TH) 28% better power draw (290 vs 400 W)
- iBeLink K3 mini (5TH) 28% better efficiency (58.0 vs 80.0 J/TH)
- Goldshell KD Box II 8% better weight (2.2 vs 2.0 kg)
- Goldshell KD Box II 38% more heat output (990 vs 1,365 BTU/hr)
- Goldshell KD Box II 10% more home mining score (31.0 vs 34.0)
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.
| iBeLink K3 mini (5TH) | Metric | Goldshell KD Box II |
|---|---|---|
| $288 | Upfront cost (MSRP) | $236 |
| -$0.52 | Daily net profit | -$0.78 |
| -$476 | Net after 1 year | -$521 |
| -$665 | Net after 2 years | -$805 |
| -$853 | Net after 3 years | -$1,090 |
| 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 KD Box IIScore: 34/100. 0 dB noise level.
Best for Efficiency
iBeLink K3 mini (5TH)58.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the iBeLink K3 mini (5TH) or Goldshell KD Box II more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the iBeLink K3 mini (5TH) is more profitable at $-0.52/day compared to $-0.78/day for the Goldshell KD Box II. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the iBeLink K3 mini (5TH) or Goldshell KD Box II?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the iBeLink K3 mini (5TH) or Goldshell KD Box II?
The Goldshell KD Box II scores 34/100 on our Home Mining Score (vs 31/100 for the iBeLink K3 mini (5TH)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the iBeLink K3 mini (5TH) and Goldshell KD Box II on J/TH?
The iBeLink K3 mini (5TH) runs at 58.0 J/TH while the Goldshell KD Box II runs at 80.0 J/TH — a difference of 22.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 28% better efficiency (58.0 vs 80.0 J/TH).