Antminer S21 Pro (234TH/s) vs A4 Dominator (280MH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
Antminer S21 Pro (234TH/s)
Option 2
A4 Dominator (280MH/s)
Balanced match
Antminer S21 Pro (234TH/s) and A4 Dominator (280MH/s) are close enough that your final choice should come down to stock, delivery timing, and hosting preference.
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 S21 Pro (234TH/s) | A4 Dominator (280MH/s) | Advantage |
|---|---|---|---|
| Brand | Antminer | Innosilicon | Contextual |
| Model | S21 | A4 | Contextual |
| Hashrate | 234 TH/s Best | 280 MH/s | Antminer S21 Pro (234TH/s) |
| Power Consumption | 3510W | 1050W Best | A4 Dominator (280MH/s) |
| Efficiency | 15.00 J/TH | 3.75 J/MH Best | A4 Dominator (280MH/s) |
| Daily energy use | 84.2 kWh | 25.2 kWh Best | A4 Dominator (280MH/s) |
| Net Daily Profit (Est.) | $3.99 Best | -$1.40 | Antminer S21 Pro (234TH/s) |
| Monthly Profit (Est.) | $119.57 Best | -$42.06 | Antminer S21 Pro (234TH/s) |
| Price | $1,784.83 | N/A | Contextual |
| Estimated ROI | 15 mo | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 400 x 290 x 195 mm | 260 x 280 x 130 mm | Contextual |
| Weight | N/A | 9200 g | Contextual |
Performance
Antminer S21 Pro (234TH/s) has the hashrate edge for raw output potential.
Efficiency
A4 Dominator (280MH/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 S21 Pro (234TH/s) or A4 Dominator (280MH/s)?
Antminer S21 Pro (234TH/s) has a higher hashrate of 234 TH/s compared to A4 Dominator (280MH/s)'s 280 MH/s.
Is Antminer S21 Pro (234TH/s) more efficient than A4 Dominator (280MH/s)?
A4 Dominator (280MH/s) is more energy efficient at 3.75 J/MH.
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
Curious? Let’s connect to answer your questions.