Antminer S21+ vs Antminer S21 Pro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21+ | Specification | Antminer S21 Pro |
|---|---|---|
| 216.0 TH/s | Hashrate | 234.0 TH/s |
| 3,564 W | Power Consumption | 3,510 W |
| 16.5 J/TH | Efficiency | 15.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 15.0 kg | Weight | 15.0 kg |
| 12,160 BTU/hr | BTU Output | 11,976 BTU/hr |
| 30/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S21+
Antminer S21 Pro
Based on BTC price of $74,723 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
The S21+ and S21 Pro represent Bitmain's upper performance tiers within the S21 generation. Both push beyond the base S21 but in slightly different ways.
Differences are marginal between these two premium variants. The Pro typically offers the highest raw hashrate, while the S21+ targets a balance of performance and value. At similar prices, hashrate-per-dollar determines the winner.
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
Antminer S21 Pro15.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Are these worth the premium over the base S21?
For commercial operations where every watt counts, yes. For home miners or those with cheap electricity, the base S21 often provides better ROI due to its lower upfront cost.
Which should I choose for a hosting operation?
The S21 Pro if you want maximum hashrate per slot. The S21+ if it offers better price-per-TH at the time of purchase.