Antminer KS3 (9.4TH/s) vs Antminer S21+ (216TH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
Antminer KS3 (9.4TH/s)
Option 2
Antminer S21+ (216TH/s)
Antminer S21+ (216TH/s) leads this comparison
Antminer S21+ (216TH/s) comes out ahead on more buyer-facing signals here. Antminer KS3 (9.4TH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.
Profit estimates use currently available product data and a hosted electricity rate of $0.060/kWh.
Technical comparison
Side-by-side mining, operating, and commercial specs.
| Feature | Antminer KS3 (9.4TH/s) | Antminer S21+ (216TH/s) | Advantage |
|---|---|---|---|
| Brand | Antminer | Antminer | Contextual |
| Model | KS3 | S21 | Contextual |
| Hashrate | 9.4 TH/s | 216 TH/s Best | Antminer S21+ (216TH/s) |
| Power Consumption | 3500W Best | 3564W | Antminer KS3 (9.4TH/s) |
| Efficiency | 372.34 J/TH | 16.50 J/TH Best | Antminer S21+ (216TH/s) |
| Daily energy use | 84.0 kWh Best | 85.5 kWh | Antminer KS3 (9.4TH/s) |
| Net Daily Profit (Est.) | -$3.17 | $1.83 Best | Antminer S21+ (216TH/s) |
| Monthly Profit (Est.) | -$95.10 | $54.84 Best | Antminer S21+ (216TH/s) |
| Price | N/A | $1,318.03 | Contextual |
| Estimated ROI | N/A | 24 mo | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 195 x 430 x 290 mm | 400 x 290 x 195 mm | Contextual |
| Weight | 16100 g Best | 17000 g | Antminer KS3 (9.4TH/s) |
Performance
Antminer S21+ (216TH/s) has the hashrate edge for raw output potential.
Efficiency
Antminer S21+ (216TH/s) is stronger when comparing joules per hash unit.
Buying decision
Check live stock, delivery schedule, and hosting capacity on the product page before placing an order.
Frequently asked questions
Which is more powerful: Antminer KS3 (9.4TH/s) or Antminer S21+ (216TH/s)?
Antminer S21+ (216TH/s) has a higher hashrate of 216 TH/s compared to Antminer KS3 (9.4TH/s)'s 9.4 TH/s.
Is Antminer KS3 (9.4TH/s) more efficient than Antminer S21+ (216TH/s)?
Antminer S21+ (216TH/s) is more energy efficient at 16.50 J/TH.
Which miner has the better estimated ROI?
Estimated ROI is not available because one of the miners is missing current pricing or profit data.
Every Day You Wait is Revenue You Lose
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