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OspreyElectronics
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FPGA
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KHeavyHash
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RELEASED SEP 2022
OspreyElectronics E300 14Gh/s — ROI calculator
Profit /day
$-1.19
Income /day
$0.01
0.33185 KAS/day
Cost $1.20 @ $0.1/kWh
Hashrate
14Gh/s
KHeavyHash
Power · Efficiency
500.0W
35.71 j/Gh
OspreyElectronics E300 14Gh/s loses up to $1.19 a day, best on KHeavyHash mining at 14 Gh/s. Also available: KHeavyHash hashpower sale ($-1.20/day). Pulling 500 W from the wall — at $0.10/kWh, not quite breaking even at today's rates.
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1 minute ago
Similar miners ↓
Tap to switch · 7 sections ROI calculator 6/7
ROI calculator
ROI calculator for OspreyElectronics E300 14Gh/s
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 12000.0%
Tap to switch · 7 sections ROI calculator 6/7
ROI calculator
ROI calculator for OspreyElectronics E300 14Gh/s
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 OspreyElectronics E300 14Gh/s
Is the OspreyElectronics E300 14Gh/s profitable?
As of September 2026, the OspreyElectronics E300 14Gh/s earns $-1.19/day mining KHeavyHash at an electricity cost of $0.1/kWh. At this electricity rate it is not profitable.
What is the payback period for the OspreyElectronics E300 14Gh/s?
Payback equals hardware cost divided by daily profit. The ROI calculator on this page projects payback months for the OspreyElectronics E300 14Gh/s 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 OspreyElectronics E300 14Gh/s?
Break-even electricity is the rate above which the OspreyElectronics E300 14Gh/s 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.