Bitmain Antminer S21
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BitmainSHA-256BTC
Antminer S21 (200T)
200 TH/s3,500 WAir-cooled
Profit / day
-$0.75/day
after power at $0.08/kWh
Efficiency
17.50J/TH
Availability
Out of stockNone available right now. We can tell you when it’s back.—
Profitability · SHA-256 · BTC
Is the Antminer S21 profitable?
Not at $0.08 per kWh. The Bitmain Antminer S21 (200T) mines Bitcoin on the SHA-256 algorithm at 200 TH/s, drawing 3,500 W (17.5 J/TH). At $0.08 per kWh it earns about $5.97 a day but spends $6.72 on power, so it loses $0.75 a day.
It’s #96 of 269 SHA-256 miners on efficiency. It isn’t in stock with us at the moment. It’s an air-cooled unit, released in January 2024.
- Break-even power price
- $0.071/kWh
- Daily profit rank
- #239of 533
It only makes money below this.
Across every miner we track.
Antminer S21 specifications
Other coins it can mine
Mine instead
BitcoinBTCRanked on
$5.970.0000794 BTC
–
0.000023%
$31.0B
−2.0%
QuaiQUAI
$7.12986.33 QUAI
+19%
0.25%
$90kLow liquidity
+14.8%
eCashXEC
$6.541,160,455 XEC
+10%
0.46%
$2.7M
−6.5%
Bitcoin CashBCH
$5.830.0245 BCH
−2%
0.0058%
$140.1M
−13.9%
DigiByte (SHA-256)DGB
$4.231,403 DGB
−29%
0.49%
$2.3M
−4.1%
Paid on top
Fractal BitcoinFB
+<$0.010.00101 FB
+<1%
0.000024%
$2.4M
−19.0%Volatile
NamecoinNMC
+<$0.010.0000858 NMC
+<1%
0.000024%
$0Illiquid
+0.4%
ElastosELA
+<$0.010.0000858 ELA
+<1%
0.000024%
$311k
−38.1%Highly volatile
HathorHTR
+<$0.010.00772 HTR
+<1%
0.000024%
$69kLow liquidity
−17.1%Volatile
Max potential profitUnlikely
-$0.75/day
-$0.75 BTC profit + <$0.01 paid on top
How it compares · SHA-256 miners
| Miner | Rank | Efficiency | Profit / day |
|---|---|---|---|
| Bitmain Antminer S23 Hyd 3U (1.16 PH) | #1 | 9.5 J/TH | $13.48 |
| Bitdeer SealMiner A4 Ultra Hydro | #2 | 9.4 J/TH | $10.38 |
| Bitmain Antminer S23e Hyd U2H (865T) | #3 | 10.0 J/TH | $9.22 |
| Bitmain Antminer S23e Hyd 2U (865Th) | #4 | 10.0 J/TH | $9.22 |
| Bitmain Antminer S21 Hydro (335T)Newer model | #93 | 16.0 J/TH | -$0.29 |
| Bitmain Antminer S21 (200T)This miner | #114 | 17.5 J/TH | -$0.75 |
| Canaan Avalon A15XP-209T | #115 | 17.5 J/TH | -$0.80 |
| Canaan Avalon A1566I (267T) | #117 | 17.2 J/TH | -$0.86 |
| MicroBT WhatsMiner M63S+ 17.5W (410T) | #139 | 17.5 J/TH | -$1.53 |
| Bitmain Antminer S19 Pro Hyd (177Th)Earlier model | #252 | 29.5 J/TH | -$4.74 |
More from Bitmain
| Miner | Profit / day |
|---|---|
| Bitmain Antminer Z15 Pro (860K)Equihash | $125.48 |
| Bitmain Antminer Z15 Pro (840K)Equihash | $122.43 |
| Bitmain Antminer Z15K (565kh)Equihash | $81.17 |
| Bitmain Antminer Z15KEquihash | $75.09 |
| Bitmain Antminer Z15Equihash | $60.99 |
Figures updated 00:01 UTC, 10 November 2026, using today’s network difficulty and coin prices. Estimates, not financial advice.