B
Bitmain
Antminer S21
SHA-256 · Released 2024-Q1
popularreliable
Specifications
Hashrate
200 TH/s
Power
3500W
Efficiency
17.5 J/TH
Noise
75 dB
Weight
14.6 kg
Dimensions
400 x 195 x 290
Voltage
200-240V
Temperature
5-45°C
US avg: $0.16 · Hosting: $0.04-0.06
$0.01$0.10$0.20$0.30
Revenue vs Cost
Revenue: $9.70/dayCost: $8.40/day
54% revenue46% electricity
Profit / Day
$1.30
0.00011144 BTC/day
Revenue
$9.70
Cost
$8.40
Break-Even8.0 years
Annual ROI12.4%
Cost / BTC$75,379
Max $/kWh$0.1154
Price$3,800
Break-Even Timeline
Purchase8.0 years
$0$3,800 invested
12% annual return — pays for itself in 8.0 years