Option 1

Option 2

DS19 (3.1TH/s) and L21 (550MH/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.
Side-by-side mining, operating, and commercial specs.
| Feature | DS19 (3.1TH/s) | L21 (550MH/s) | Advantage |
|---|---|---|---|
| Brand | FFMiner | BW | Contextual |
| Model | DS | L | Contextual |
| Hashrate | 3.1 TH/s Best | 550 MH/s | DS19 (3.1TH/s) |
| Power Consumption | 980W | 950W Best | L21 (550MH/s) |
| Efficiency | 316.13 J/TH | 1.73 J/MH Best | L21 (550MH/s) |
| Daily energy use | 23.5 kWh | 22.8 kWh Best | L21 (550MH/s) |
| Net Daily Profit (Est.) | $25.11 Best | -$1.16 | DS19 (3.1TH/s) |
| Monthly Profit (Est.) | $753.26 Best | -$34.74 | DS19 (3.1TH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 130 x 330 x 170 mm | 130 x 350 x 155 mm | Contextual |
| Weight | N/A | 5750 g | Contextual |
DS19 (3.1TH/s) has the hashrate edge for raw output potential.
L21 (550MH/s) is stronger when comparing joules per hash unit.
Check live stock, delivery schedule, and hosting capacity on the product page before placing an order.
DS19 (3.1TH/s) has a higher hashrate of 3.1 TH/s compared to L21 (550MH/s)'s 550 MH/s.
L21 (550MH/s) is more energy efficient at 1.73 J/MH.
Estimated ROI is not available because one of the miners is missing current pricing or profit data.
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