Option 1
Antminer Z15 (420KH/s)
Option 2
L21 (550MH/s)
L21 (550MH/s) leads this comparison
L21 (550MH/s) comes out ahead on more buyer-facing signals here. Antminer Z15 (420KH/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 Z15 (420KH/s) | L21 (550MH/s) | Advantage |
|---|---|---|---|
| Brand | Antminer | BW | Contextual |
| Model | Z15 | L | Contextual |
| Hashrate | 420 KH/s | 550 MH/s Best | L21 (550MH/s) |
| Power Consumption | 1510W | 950W Best | L21 (550MH/s) |
| Efficiency | 3.60 J/KH | 1.73 J/MH Best | L21 (550MH/s) |
| Daily energy use | 36.2 kWh | 22.8 kWh Best | L21 (550MH/s) |
| Net Daily Profit (Est.) | $13.09 Best | -$1.16 | Antminer Z15 (420KH/s) |
| Monthly Profit (Est.) | $392.57 Best | -$34.74 | Antminer Z15 (420KH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 133 x 290 x 245 mm | 130 x 350 x 155 mm | Contextual |
| Weight | 9000 g | 5750 g Best | L21 (550MH/s) |
Performance
L21 (550MH/s) has the hashrate edge for raw output potential.
Efficiency
L21 (550MH/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 Z15 (420KH/s) or L21 (550MH/s)?
L21 (550MH/s) has a higher hashrate of 550 MH/s compared to Antminer Z15 (420KH/s)'s 420 KH/s.
Is Antminer Z15 (420KH/s) more efficient than L21 (550MH/s)?
L21 (550MH/s) is more energy efficient at 1.73 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
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