Bitmain Antminer S21 XP
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BitmainSHA-256BTC
Antminer S21 XP (270T)
270 TH/s3,645 WAir-cooled
Profit / day
$1.06/day
after power at $0.08/kWh
Efficiency
13.50J/TH
Availability
Priced 1 Oct 2026Ships nowIn stock$4,130.40$15.30/TH
Brand new, 12-month warrantyEverything includedNo setup fees
1
Profitability · SHA-256 · BTC
Is the Antminer S21 XP profitable?
Yes. 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 $8.06 a day, spends $7.00 of that on power, and keeps $1.06. That’s around $32 a month, or $388 a year.
It’s #28 of 269 SHA-256 miners on efficiency. It’s an air-cooled unit, released in January 2025.
- Break-even power price
- $0.092/kWh
- Pays for itself in
- ~10.8years
- Daily profit rank
- #64of 533
It makes money below this.
At $4,130, if today’s numbers held, so treat this as a rough guide.
Across every miner we track.
Antminer S21 XP specifications
Other coins it can mine
Mine instead
BitcoinBTCRanked on
$8.060.000107 BTC
–
0.000031%
$31.0B
−2.0%
QuaiQUAI
$9.581,332 QUAI
+19%
0.35%
$91kLow liquidity
+14.7%
DigiByte (SHA-256)DGB
$8.902,924 DGB
+10%
1.0%Noticeable
$2.3M
−3.3%
eCashXEC
$8.871,563,916 XEC
+10%
0.62%
$1.6M
−6.2%
Bitcoin SVBSV
$8.050.496 BSV
<1%
0.11%
$6.6M
−2.4%
Bitcoin CashBCH
$7.950.0332 BCH
−1%
0.0081%
$175.1M
−13.7%
Paid on top
Fractal BitcoinFB
+<$0.010.00139 FB
+<1%
0.000032%
$2.4M
−16.8%Volatile
NamecoinNMC
+<$0.010.000116 NMC
+<1%
0.000032%
$0Illiquid
+0.4%
ElastosELA
+<$0.010.000116 ELA
+<1%
0.000032%
$307k
−43.0%Highly volatile
HathorHTR
+<$0.010.0104 HTR
+<1%
0.000032%
$71kLow liquidity
−17.7%Volatile
Max potential profitUnlikely
+$1.06/day
$1.06 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 XP Hyd 3U (860T)Earlier model | #9 | 13.0 J/TH | $4.21 |
| MicroBT WhatsMiner M7DS | #18 | 13.5 J/TH | $2.64 |
| Bitdeer SealMiner A3 Hydro | #21 | 13.5 J/TH | $1.97 |
| Bitmain Antminer S21 XP Immersion (300Th) | #30 | 13.5 J/TH | $1.18 |
| Bitmain Antminer S21 XP (270T)This miner | #33 | 13.5 J/TH | $1.06 |
| Bitmain Antminer S21+ (216Th)Newer model | #97 | 16.5 J/TH | -$0.39 |
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.