Antminer S21+ profitability & price LIVE
Bitmain SHA-256 miner for BTC. Currently $0.75/day net at $0.072/kWh.
About the Antminer S21+
The Antminer S21+ is a industrial-grade SHA-256 ASIC miner from Bitmain, delivering 216 TH/s for 3,564 W of power draw — an efficiency of 16.5 J/TH.
It targets the BTC market: at today's network conditions (August 07, 2026) it produces about $6.91/day in BTC revenue, or $0.75/day net of electricity at $0.072/kWh, and stays in the green down to a break-even rate of $0.081/kWh. Street price is around $3,600 — request a quote below for live stock and delivery times.
Profitability vs electricity cost
| Rate ($/kWh) | Cost/day | Revenue/day | Net profit/day | |
|---|---|---|---|---|
| $0.02 | $1.71 | $6.91 | +$5.20 | |
| $0.04 | $3.42 | $6.91 | +$3.49 | |
| $0.06 | $5.13 | $6.91 | +$1.78 | |
| $0.08 | $6.84 | $6.91 | +$0.07 | |
| $0.10 | $8.55 | $6.91 | -$1.64 | |
| $0.12 | $10.26 | $6.91 | -$3.35 | |
| $0.14 | $11.98 | $6.91 | -$5.07 | |
| $0.16 | $13.69 | $6.91 | -$6.78 | |
| $0.18 | $15.40 | $6.91 | -$8.49 | |
| $0.20 | $17.11 | $6.91 | -$10.20 |
Break-even electricity price
The Antminer S21+ currently earns $0.75/day net at $0.072/kWh (August 07, 2026 snapshot). It stays profitable as long as your electricity costs less than $0.081/kWh — its break-even rate. Difficulty increases and coin-price moves will shift this number — recheck before ordering.
FAQ — Antminer S21+
Is the Antminer S21+ profitable?
At $0.072/kWh the Antminer S21+ earns about $6.91/day in revenue and $0.75/day in net profit. Its break-even electricity price is $0.081/kWh — above that rate it mines at a loss.
What electricity rate does the Antminer S21+ need?
The Antminer S21+ breaks even at $0.081/kWh at current network conditions — below that rate it earns $0.75/day net at $0.072/kWh. Miners with access to industrial power ($0.04–0.07/kWh) have the healthiest margins.
What does the Antminer S21+ mine?
The Antminer S21+ is a SHA-256 miner. It mines BTC.