iBeLink K3 mini (3.5TH) vs Goldshell KD Box II
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| iBeLink K3 mini (3.5TH) | Specification | Goldshell KD Box II |
|---|---|---|
| 3.5 TH/s | Hashrate | 5.0 TH/s |
| 170 W | Power Consumption | 400 W |
| 48.6 J/TH | Efficiency | 80.0 J/TH |
| 35 dB | Noise Level | — |
| 2.2 kg | Weight | 2.0 kg |
| 580 BTU/hr | BTU Output | 1,365 BTU/hr |
| 68/100 | Home Mining Score | 34/100 |
| — | Release Year | — |
| Blake2s | Algorithm | Blake2s |
| iBeLink | Manufacturer | Goldshell |
Profitability Comparison
iBeLink K3 mini (3.5TH)
Goldshell KD Box II
Based on BTC price of $78,226 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the iBeLink K3 mini (3.5TH), which leads on 4 of 5 weighted factors (efficiency, power consumption, home mining score, noise level). Its biggest concrete edge: 58% better power draw (170 vs 400 W). The Goldshell KD Box II claws back ground on hashrate. 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 (3.5TH) and Goldshell KD Box II diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Goldshell KD Box II 43% more hashrate (3.5 vs 5.0 TH/s)
- iBeLink K3 mini (3.5TH) 58% better power draw (170 vs 400 W)
- iBeLink K3 mini (3.5TH) 39% better efficiency (48.6 vs 80.0 J/TH)
- Goldshell KD Box II 8% better weight (2.2 vs 2.0 kg)
- Goldshell KD Box II 135% more heat output (580 vs 1,365 BTU/hr)
- iBeLink K3 mini (3.5TH) 100% more home mining score (68.0 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 (3.5TH) | Metric | Goldshell KD Box II |
|---|---|---|
| — | Upfront cost (MSRP) | $236 |
| -$0.28 | Daily net profit | -$0.78 |
| -$103 | Net after 1 year | -$521 |
| -$206 | Net after 2 years | -$805 |
| -$309 | Net after 3 years | -$1,090 |
| — | 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
iBeLink K3 mini (3.5TH)Score: 68/100. 35 dB noise level.
Best for Efficiency
iBeLink K3 mini (3.5TH)48.6 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the iBeLink K3 mini (3.5TH) or Goldshell KD Box II more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the iBeLink K3 mini (3.5TH) is more profitable at $-0.28/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.
Is the iBeLink K3 mini (3.5TH) or the Goldshell KD Box II better for noise-sensitive spaces?
The iBeLink K3 mini (3.5TH) is quieter at 35 dB compared to the Goldshell KD Box II at 0 dB. For home mining, lower noise levels make a significant difference in livability.
iBeLink K3 mini (3.5TH) vs Goldshell KD Box II: which fits a residential setup better?
The iBeLink K3 mini (3.5TH) scores 68/100 on our Home Mining Score (vs 34/100 for the Goldshell KD Box II). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
iBeLink K3 mini (3.5TH) vs Goldshell KD Box II: how much does the efficiency gap matter?
The iBeLink K3 mini (3.5TH) runs at 48.6 J/TH while the Goldshell KD Box II runs at 80.0 J/TH — a difference of 31.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 39% better efficiency (48.6 vs 80.0 J/TH).