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DragonBall Miner A21

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Is the A21 profitable?

The DragonBall Miner A21 mines NEXA on the NexaPow algorithm at 3.4 GH/s, drawing 1,800 W (529 J/GH). At $0.08 per kWh it earns about $5.72 a day, spends $3.46 of that on power, and keeps $2.27. That’s around $68 a month. It stops making money above roughly $0.132 per kWh.

That puts it #90 of 522 on daily profit across every miner we track. It isn’t in stock with us at the moment. It’s an air-cooled unit, released in December 2024.

Profit at different electricity prices

Same machine, same day, different power bill. Find the row closest to what you pay.

Power pricePower / dayProfit / dayProfit / month
$0.03$1.30$4.43$133
$0.05$2.16$3.56$107
$0.06$2.59$3.13$94
$0.08$3.46$2.27$68
$0.10$4.32$1.40$42
$0.12$5.18$0.54$16
$0.15$6.48-$0.76-$23

More from DragonBall Miner

Figures updated 16:26 UTC, 25 September 2026, using today’s network difficulty and coin prices. Estimates, not financial advice.