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Blackminer
·
FPGA
·
KAWPOW
·
RELEASED SEP 2018
Blackminer F1 — ROI calculator
Profit /day
$-0.12
Income /day
$0.19
70.59 RVN/day
Cost $0.31 @ $0.1/kWh
Hashrate
22Mh/s
KAWPOW
Power · Efficiency
130.0W
5.91 j/Mh
Blackminer F1 loses up to $0.12 a day, best on KAWPOW hashpower sale. Also available: mining KAWPOW at 22 Mh/s ($-0.22/day). Pulling 130 W from the wall — at $0.10/kWh, not quite breaking even at today's rates.
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5 minutes ago
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Tap to switch · 7 sections ROI calculator 6/7
ROI calculator
ROI calculator for Blackminer F1
Model payback, electricity, and first-year return for this rig.
Hardware cost
$5,000
Electricity rate
$0.10/kWh
Runtime per day
24
Pool fee
2.0%
Difficulty growth /yr
+0%
Net profit /day
$0.00
after electricity & fees
Payback period
—
—
First-year return
$0
—
Projected cumulative profit
The line crosses $0 on the day you break even. Everything above is pure profit.
Monthly P&L · 3-year horizon
Capital cost is booked in month 1. Cumulative columns include the rig purchase, so Net goes positive at true breakeven.
| Month | Earned (mo) | Cost burned (mo) | Cumulative earned | Cumulative cost | Net | % ROI |
|---|
Profit vs cost
cost 344.44%
Tap to switch · 7 sections ROI calculator 6/7
ROI calculator
ROI calculator for Blackminer F1
Model payback, electricity, and first-year return for this rig.
Hardware cost
$5,000
Electricity rate
$0.10/kWh
Runtime per day
24
Pool fee
2.0%
Difficulty growth /yr
+0%
Net profit /day
$0.00
after electricity & fees
Payback period
—
—
First-year return
$0
—
Projected cumulative profit
The line crosses $0 on the day you break even. Everything above is pure profit.
Monthly P&L · 3-year horizon
Capital cost is booked in month 1. Cumulative columns include the rig purchase, so Net goes positive at true breakeven.
| Month | Earned (mo) | Cost burned (mo) | Cumulative earned | Cumulative cost | Net | % ROI |
|---|
Frequently asked
About the Blackminer F1
Is the Blackminer F1 profitable?
As of October 2026, the Blackminer F1 earns $-0.22/day mining KAWPOW at an electricity cost of $0.1/kWh. At this electricity rate it is not profitable.
What is the payback period for the Blackminer F1?
Payback equals hardware cost divided by daily profit. The ROI calculator on this page projects payback months for the Blackminer F1 at $0.1/kWh — adjust the electricity rate and the hardware cost to match your scenario. Most miners aim for 12–24 month payback on new hardware.
What's the break-even electricity rate for the Blackminer F1?
Break-even electricity is the rate above which the Blackminer F1 stops being profitable. The calculator below derives it from the rig's revenue and power draw — anything below this rate yields positive daily profit, anything above turns the rig into a net loss.
