Bitmain Antminer L11 Pro — Maximum hashrate for scrypt mining with Litecoin & Dogecoin
The Bitmain Antminer L11 Pro is the most powerful air-cooled model in the current L11 series and offers around 21 GH/s (± 5%) of computing power with a power consumption of around 3900 watts. It thus achieves an energy efficiency of around 185 J/GH — while maintaining stable performance under full load.
The L11 Pro version is aimed at users who want to use maximum hashrate per device without switching to water-cooled infrastructure. It uses the same platform as the standard L11, but has higher-selected chips with an improved performance class (chip binning).
Technical Classification and Performance Data
Like all models in the series, the L11 Pro is based on the Scrypt algorithm and is fully suitable for merged mining — Litecoin (LTC) and Dogecoin (DOGE) can be mined simultaneously without additional power consumption or configuration effort.
Performance data at a glance:
- Computing power: approx. 21 GH/s (± 5%)
- Power consumption: approx. 3900 W
- Energy efficiency: approx. 185 J/GH
- Algorithm: Scrypt (Litecoin & Dogecoin)
- Merged mining: natively supported (AuxPow)
- Cooling: air-cooled, 4 temperature-controlled fans
- Connection: Ethernet/ bitmain interface
Platform and operation — high stability air cooling
Despite higher computing power, the L11 Pro remains completely air-cooled. The design is based on the well-known bitmain form factor with four temperature-controlled fans and robust aluminum housing. Integration into existing mining infrastructure is possible without adjustments.
Important: Even with higher wattages, no conversion is necessary — as with other models, the power supply is provided by standardized C32 fuses at 230 V. The noise level is slightly increased, but is within the usual range of air-cooled ASICs.
Classification within the L series
The Bitmain Antminer L11 Pro (21GH/s) forms together with Antminer L11 Standard (20GH/s) The air-cooled top group of current Bitmain scrypt miners. With around 1 GH/s more computing power, the L11 Pro is the most powerful model within the air-cooled L11 series — with an otherwise identical design and technology.
An overview of the complete L series:
- L7 — first Scrypt model from Bitmain (since 2021), known for stable running performance
- L9 — second generation (since 2024) with higher hashrate and better efficiency
- L11 (20GH/s) — current generation (since 2026), standard model with high energy efficiency
- L11 Pro (21GH/s) — selected chip variant with higher computing power
- L11 Hydro (33GH/s) — water-cooled model for maximum thermal stability
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