Option 1
Antminer K7 (63.5TH/s)
Option 2
L21 (550MH/s)
Balanced match
Antminer K7 (63.5TH/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.
Technical comparison
Side-by-side mining, operating, and commercial specs.
| Feature | Antminer K7 (63.5TH/s) | L21 (550MH/s) | Advantage |
|---|---|---|---|
| Brand | Antminer | BW | Contextual |
| Model | K7 | L | Contextual |
| Hashrate | 63.5 TH/s Best | 550 MH/s | Antminer K7 (63.5TH/s) |
| Power Consumption | 3080W | 950W Best | L21 (550MH/s) |
| Efficiency | 48.50 J/TH | 1.73 J/MH Best | L21 (550MH/s) |
| Daily energy use | 73.9 kWh | 22.8 kWh Best | L21 (550MH/s) |
| Net Daily Profit (Est.) | $1.21 Best | -$1.16 | Antminer K7 (63.5TH/s) |
| Monthly Profit (Est.) | $36.44 Best | -$34.74 | Antminer K7 (63.5TH/s) |
| Price | $1,727.88 | N/A | Contextual |
| Estimated ROI | 47 mo | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | N/A | 130 x 350 x 155 mm | Contextual |
| Weight | N/A | 5750 g | Contextual |
Performance
Antminer K7 (63.5TH/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 K7 (63.5TH/s) or L21 (550MH/s)?
Antminer K7 (63.5TH/s) has a higher hashrate of 63.5 TH/s compared to L21 (550MH/s)'s 550 MH/s.
Is Antminer K7 (63.5TH/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
Curious? Let’s connect to answer your questions.