Bitmain Antminer S9 Hydro (18Th) vs MicroBT Whatsminer M21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9 Hydro (18Th) | Specification | MicroBT Whatsminer M21 |
|---|---|---|
| 18.0 TH/s | Taux de hachage | 31.0 TH/s |
| 1,728 W | Consommation électrique | 1,860 W |
| 96.0 J/TH | Efficiency | 60.0 J/TH |
| — | Niveau de bruit | — |
| 5,150.0 kg | Weight | 7,150.0 kg |
| 5,896 BTU/hr | BTU Output | 6,346 BTU/hr |
| 28/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S9 Hydro (18Th)
MicroBT Whatsminer M21
Based on BTC price of $74,290 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le MicroBT Whatsminer M21 l'emporte sur 2 des 3 facteurs (efficacité, hashrate). Le Bitmain Antminer S9 Hydro (18Th) a l'avantage en consommation électrique. Consultez les spécifications détaillées et les calculs de rentabilité ci-dessus pour déterminer quel mineur convient le mieux à votre installation.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
MicroBT Whatsminer M2160.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S9 Hydro (18Th) or MicroBT Whatsminer M21 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M21 is more profitable at $-3.47/day compared to $-3.57/day for the Bitmain Antminer S9 Hydro (18Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S9 Hydro (18Th) or MicroBT Whatsminer M21?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Bitmain Antminer S9 Hydro (18Th) or MicroBT Whatsminer M21?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Bitmain Antminer S9 Hydro (18Th) and MicroBT Whatsminer M21?
The Bitmain Antminer S9 Hydro (18Th) runs at 96.0 J/TH while the MicroBT Whatsminer M21 runs at 60.0 J/TH — a difference of 36.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.