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The miner booked a $638.8 million impairment retiring rigs to clear halls for AI tenants. Its $4 billion contracted run rate is still $3 billion above what is actually operating.
·Tom Chen
Scrypt · air-cooled
Bitmain Antminer L7
The long-serving Scrypt workhorse, now clearly superseded on efficiency. Widely available second-hand, which is the main reason to consider one.
At your electricity rate
$/kWh
Operating profit
$1,592.59
per day · 29.5619 LTC
Break-even electricity
$19.43
per kWh · $19.37 above your rate
Payback period
—
Enter a hardware cost to estimate payback
Revenue / day$1,597.53
Electricity / day$4.93
Energy / day82.2 kWh
Revenue assumes a 1% pool fee at the current LTC price and network difficulty, with the machine running continuously. Payback needs a hardware cost, which we do not publish because we have no verified retailer feed — add your own purchase price in the calculator. Your rate is saved in this browser and applies across the site.
Specifications
| Manufacturer | Bitmain |
|---|---|
| Model | Antminer L7 |
| Algorithm | Scrypt |
| Coins | Litecoin, Dogecoin |
| Hashrate | 9,500 GH/s |
| Power | 3,425 W |
| Efficiency | 0.4 W/GH |
| Cooling | Air |
| Type | ASIC |
| Released | 2021 |
| Home suitable | No — noise and power draw |
| Noise | 75 dB |
| Dimensions | 195 × 290 × 370 mm |
| Weight | 15 kg |
| Operating temperature | 5 to 45 °C |
| Warranty | 365 days |
Data provenance
Manufacturer datasheet as published by retailers; hashrate and power corroborated across multiple sources. Last verified 2026-08-03.
Any field not listed above is one we could not verify for this machine. We would rather leave a row out than publish a figure you cannot check. Where published sources disagree, we say so instead of picking one. How we verify specifications.
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