Antminer L11 Pro Profitability — LTC+DOGE Merged Mining
Is the Antminer L11 Pro profitable?
The Pro SKU of the L11 line: 21 GH/s at 3,612 W (approx. manufacturer spec), around 0.17 J/MH — currently the most efficient Scrypt spec in this site's preset table. If any machine stays profitable through the 2027 Litecoin halving at residential tariffs, it is this class.
The only honest answer is a live one: revenue moves with LTC and DOGE prices and network hashrate every day. At 0.17 J/MH the question is not whether it earns today — it is whether your tariff keeps it earning after August 2027, which is exactly what the payback tile flags. The break-even electricity figure is the line — pay less per kWh than that and the machine earns, pay more and it burns.
Why both coins count
Every serious Scrypt profitability number counts both reward streams. Through AuxPoW merged mining, the same hashes earn full Litecoin and full Dogecoin block rewards on one power bill — LTC-only math understates Antminer L11 Pro revenue by the entire DOGE share. The mechanics are on our LTC+DOGE merged mining calculator, which this page's math mirrors exactly.
Specs & physical reality
| Spec | Value |
|---|---|
| Factory bin — 21 GH/s | 21 GH/s · 3,612 W · 0.17 J/MH |
| Input power | 200–240 V dedicated circuit |
| Current draw | ≈15.7 A at 230 V |
| Heat output | ≈12,324 BTU/hr (3,612 W — all of it becomes room heat) |
| Noise | ≈75 dB (manufacturer claim) — server-fan loud, not for living spaces |
| Warranty | 365-day manufacturer term is typical, from ship date — confirm in writing; used units carry none |
| Spec source | Bitmain — approx. manufacturer figures; real units vary by bin, firmware and temperature |
FAQ
- Does the Antminer L11 Pro mine LTC and DOGE at the same time?
- Yes — Scrypt machines merge-mine. The same proof of work is submitted to both chains, earning full rewards on each. Most major LTC pools credit DOGE automatically alongside LTC.
- What does the revenue figure exclude?
- Transaction fees on both chains (small next to subsidies, so figures are slightly conservative), cooling power, and difficulty drift. The 2027 Litecoin halving is a scheduled cut, not drift — the payback tile flags it when your horizon crosses it.