ASICMining
FIG · Equipment

Bitmain Antminer S21 XP

Browse our current-gen miners. Add the ones you want, then sign in any time to save your cart and check out.

0 units

Is the Antminer S21 XP profitable?

The Bitmain Antminer S21 XP (270T) mines Bitcoin on the SHA-256 algorithm at 270 TH/s, drawing 3,645 W (13.5 J/TH). At $0.08 per kWh it earns about $10.14 a day, spends $7.00 of that on power, and keeps $3.14. That’s around $94 a month. It stops making money above roughly $0.116 per kWh.

That puts it #71 of 522 on daily profit across every miner we track, and #29 of 262 SHA-256 miners on efficiency. At the current best price of $4,303 it would pay for itself in about 3.8 years if today’s numbers held. They won’t, so treat that as a rough guide. It’s an immersion-cooled unit, released in January 2025.

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$2.62$7.52$225
$0.05$4.37$5.77$173
$0.06$5.25$4.89$147
$0.08$7.00$3.14$94
$0.10$8.75$1.39$42
$0.12$10.50-$0.36-$11
$0.15$13.12-$2.98-$89

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