StrongU STU-U8 vs MicroBT Whatsminer M21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| StrongU STU-U8 | Specification | MicroBT Whatsminer M21 |
|---|---|---|
| 46.0 TH/s | Hashrate | 31.0 TH/s |
| 2,100 W | Power Consumption | 1,860 W |
| 45.7 J/TH | Efficiency | 60.0 J/TH |
| — | Noise Level | — |
| 8,200.0 kg | Weight | 7,150.0 kg |
| 7,165 BTU/hr | BTU Output | 6,346 BTU/hr |
| 26/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| StrongU | Manufacturer | MicroBT |
Profitability Comparison
StrongU STU-U8
MicroBT Whatsminer M21
Based on BTC price of $78,265 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the StrongU STU-U8 edges it: 2 of 4 factors go its way (efficiency, hashrate). Its biggest concrete edge: 48% more hashrate (46.0 vs 31.0 TH/s). That said, the MicroBT Whatsminer M21 isn't beaten everywhere — it still wins power consumption and home mining score. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the StrongU STU-U8 and MicroBT Whatsminer M21 actually differ, with the gap quantified:
- StrongU STU-U8 48% more hashrate (46.0 vs 31.0 TH/s)
- MicroBT Whatsminer M21 11% better power draw (2,100 vs 1,860 W)
- StrongU STU-U8 24% better efficiency (45.7 vs 60.0 J/TH)
- MicroBT Whatsminer M21 13% better weight (8,200 vs 7,150 kg)
- StrongU STU-U8 13% more heat output (7,165 vs 6,346 BTU/hr)
- MicroBT Whatsminer M21 8% more home mining score (26.0 vs 28.0)
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
MicroBT Whatsminer M21Score: 28/100. 0 dB noise level.
Best for Efficiency
StrongU STU-U845.7 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
StrongU STU-U8 vs MicroBT Whatsminer M21: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M21 is more profitable at $-3.35/day compared to $-3.38/day for the StrongU STU-U8. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
StrongU STU-U8 vs MicroBT Whatsminer M21: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
StrongU STU-U8 vs MicroBT Whatsminer M21: which fits a residential setup better?
The MicroBT Whatsminer M21 scores 28/100 on our Home Mining Score (vs 26/100 for the StrongU STU-U8). 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 StrongU STU-U8 and MicroBT Whatsminer M21?
The StrongU STU-U8 runs at 45.7 J/TH while the MicroBT Whatsminer M21 runs at 60.0 J/TH — a difference of 14.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 24% better efficiency (45.7 vs 60.0 J/TH).