Live Bitcoin profitability for the Bitmain Antminer S21 — 200 Th/s on SHA-256, 3500 W wall draw. Hash rate is pre-filled; enter your electricity cost and hit Calculate.
| Cryptocurrency Algorithm |
Difficulty Nethash |
Market Cap 24h Volume |
Revenue Profit |
|---|
| Spec | Value |
|---|---|
| Algorithm | SHA-256 |
| Coin | Bitcoin (BTC) |
| Hash rate | 200 Th/s |
| Power consumption | 3500 W |
| Efficiency | 17.5 J/Th |
| Manufacturer | Bitmain |
| Released | 2023 |
The Antminer S21 is Bitmain's current-generation flagship SHA-256 miner, launched in 2023 with the highest hash rate and best efficiency of the S19/S21 lineup.
In 2026, the S21 is the most competitive Bitmain ASIC for new buyers, though at a higher upfront cost than used S19-generation units on the secondary market.
The live calculator above uses real-time network data from mempool.space and BTC price from CoinGecko — no stale numbers.
What does the Antminer S21 mine?
Bitcoin (BTC) only. The Antminer S21 is a single-algorithm SHA-256 ASIC and cannot mine any other coin.
Antminer S21 vs other Antminer models?
The S21 is currently Bitmain's flagship SHA-256 miner, ahead of both the S19 (95 Th/s) and S19 XP (140 Th/s) on raw hash rate and efficiency.