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●
Bitmain
·
ASIC
·
Sha256
·
RELEASED FEB 2024
Bitmain Antminer S21
Profit /day
$2.58
Income /day
$10.98
0.00010027 BTC/day
Cost $8.40 @ $0.1/kWh
Hashrate
200Th/s
Sha256
Power · Efficiency
3500.0W
17.50 j/Th
Bitmain Antminer S21 makes up to $2.58 a day, best on Sha256 hashpower sale. Also available: mining Sha256 at 200 Th/s ($-0.54/day). Pulling 3,500 W from the wall — at $0.10/kWh, profitable at today's rates.
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5 minutes ago
Similar miners ↓
Tap to switch · 7 sections Overview 1/7
Today's best income
Market Hashrate · $2.58/day net
$
Not available
AI Rental
GPU marketplace
ASICs run a single hash function — they don't run AI workloads. Only general-purpose GPUs can be rented for AI.
⛏
Crypto Mining
Direct chain mining
$-0.54
//Day net
Income $7.86 · on Sha256
See details →
⇄
★ Winner
Market Hashrate
Sell raw hashpower
$2.58
//Day net
Income $10.98 · NH 24h · NH OB · MRR
See details →
Profitability over time · best of rig
Daily projection
Daily winners across all income streams — averaged from your rig's recorded history at $0.1/kWh
Loading...
| Period | /Day | /Month |
|---|---|---|
| Income | $10.98 | $329.49 |
|
Cost
$0.1/kWh
|
$8.40 | $252.00 |
| Profit | $2.58 | $77.49 |
Internal consensus blend — derived from external sources, not a raw quote from any single market.
Similar rigs
More Bitmain miners
Bitmain Antminer S23 Hyd 3U
Sha256
$19.13/day
11020W
Bitmain Antminer Z15 Pro
Equihash
$29.33/day
2650W
Bitmain Antminer S23e Hyd 2U (865Th)
Sha256
$13.23/day
8650W
Bitmain Antminer S21e XP Hyd 3U
Sha256
$6.96/day
11180W
Bitmain Antminer KS7 (40Th)
KHeavyHash
$24.80/day
3080W
Bitmain Antminer S23 XP Hyd
Sha256
$10.76/day
5340W
Profit vs cost
cost 106.87%
Full specifications
Bitmain Antminer S21
· Bitmain
· Sha256
Power draw
3500 W
Hashrate
200Th/s
on Sha256
Best efficiency
17.50 J/T
on Sha256
Algos supported
1
Device type
ASIC
Released
Feb 2024
Manufacturer
Bitmain
Cost / day
$8.40
at $0.1/kWh
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Tap to switch · 7 sections Overview 1/7
Today's best income
Market Hashrate · $2.58/day net
$
Not available
AI Rental
GPU marketplace
ASICs run a single hash function — they don't run AI workloads. Only general-purpose GPUs can be rented for AI.
⛏
Crypto Mining
Direct chain mining
$-0.54
//Day net
Income $7.86 · on Sha256
See details →
⇄
★ Winner
Market Hashrate
Sell raw hashpower
$2.58
//Day net
Income $10.98 · NH 24h · NH OB · MRR
See details →
Profitability over time · best of rig
Daily projection
Daily winners across all income streams — averaged from your rig's recorded history at $0.1/kWh
Loading...
| Period | /Day | /Month |
|---|---|---|
| Income | $10.98 | $329.49 |
|
Cost
$0.1/kWh
|
$8.40 | $252.00 |
| Profit | $2.58 | $77.49 |
Internal consensus blend — derived from external sources, not a raw quote from any single market.
Profit vs cost
cost 106.87%
Full specifications
Bitmain Antminer S21
· Bitmain
· Sha256
Power draw
3500 W
Hashrate
200Th/s
on Sha256
Best efficiency
17.50 J/T
on Sha256
Algos supported
1
Device type
ASIC
Released
Feb 2024
Manufacturer
Bitmain
Cost / day
$8.40
at $0.1/kWh
Similar rigs
More Bitmain miners
Bitmain Antminer S23 Hyd 3U
Sha256
$19.13/day
11020W
Bitmain Antminer Z15 Pro
Equihash
$29.33/day
2650W
Bitmain Antminer S23e Hyd 2U (865Th)
Sha256
$13.23/day
8650W
Bitmain Antminer S21e XP Hyd 3U
Sha256
$6.96/day
11180W
Bitmain Antminer KS7 (40Th)
KHeavyHash
$24.80/day
3080W
Bitmain Antminer S23 XP Hyd
Sha256
$10.76/day
5340W
Frequently asked
About the Bitmain Antminer S21
Is the Bitmain Antminer S21 profitable?
As of September 2026, the Bitmain Antminer S21 earns $-0.54/day mining Sha256 at an electricity cost of $0.1/kWh. At this electricity rate it is not profitable.
How much power does the Bitmain Antminer S21 use?
The Bitmain Antminer S21 consumes 3500W of power. At $0.1/kWh, that costs approximately $8.40/day in electricity.
Can the Bitmain Antminer S21 earn from AI rental?
No. The Bitmain Antminer S21 is a mining ASIC — it has no general-purpose compute cores and cannot run AI workloads. AI rental is a GPU-only income mode.
What crypto algorithms can the Bitmain Antminer S21 mine?
The Bitmain Antminer S21 can mine 1 algorithm(s); Sha256 is its most profitable, generating $7.86/day in direct mining revenue before electricity costs. Pool-based mining is the traditional approach — you point the rig at a mining pool and receive payouts in the native coin.
Can the Bitmain Antminer S21 sell hashrate on NiceHash?
Yes. NiceHash and similar hashrate marketplaces (Mining Rig Rentals, etc.) let the Bitmain Antminer S21 sell its Sha256 hashpower directly — buyers rent the compute, you receive BTC per hash delivered. It is similar to mining, but removes coin-price risk since you are paid in BTC on NiceHash's rate.