Antminer S21+ vs Whatsminer M30S+
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21+ | Specification | Whatsminer M30S+ |
|---|---|---|
| 216.0 TH/s | Hashrate | 100.0 TH/s |
| 3,564 W | Power Consumption | 3,400 W |
| 16.5 J/TH | Efficiency | 34.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 15.0 kg | Weight | 11.5 kg |
| 12,160 BTU/hr | BTU Output | 11,601 BTU/hr |
| 30/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S21+
Whatsminer M30S+
Based on BTC price of $73,699 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Antminer S21+ wins on 2 of 5 factors (efficiency, hashrate). The Whatsminer M30S+ holds the edge in power consumption and home mining score and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Whatsminer M30S+Score: 36/100. 75 dB noise level.
Best for Efficiency
Antminer S21+16.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21+ or Whatsminer M30S+ more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21+ is more profitable at $-1.65/day compared to $-4.97/day for the Whatsminer M30S+. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S21+ or Whatsminer M30S+?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer S21+ or Whatsminer M30S+?
The Whatsminer M30S+ scores 36/100 on our Home Mining Score (vs 30/100 for the Antminer S21+). 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 S21+ and Whatsminer M30S+?
The Antminer S21+ runs at 16.5 J/TH while the Whatsminer M30S+ runs at 34.0 J/TH — a difference of 17.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.