Bitmain Antminer L11 Pro

Miner + Setup & Support

£6,350.00

Bitmain Antminer L11 Pro

Verified ASIC Hardware Supplier

Bitmain Antminer L11 Pro

LTC, DOGE & BEL ASIC Miner

£6,350.00

Setup Available

In stock - Ready to Ship

Key Specifications

Hash Rate: 21GH/s

Power: 3612W

Algorithim: Scrypt

Efficiency: 172J/G

The Bitmain Antminer L11 PRO 21G is a dedicated Scrypt ASIC miner engineered for efficient mining of Litecoin, Dogecoin (via merge mining), and other Scrypt-based coins. With a rated hashing power of approximately 21 gigahashes per second (21 GH/s), this unit delivers reliable performance in a practical air-cooled design, making it a solid option for UK and EU home miners looking for consistent throughput with manageable power and noise.

Setup & Support: Recommended for most buyers

Remote setup service

Power & saftey guidance

Network & account setup

Miner configuration

This miner is available as hardware only or with our Setup & Support package which is recommended for most buyers.

The Setup & Support option includes remote configuration, power and safety guidance, network and mining account setup, and full miner configuration to ensure your equipment is deployed correctly and operating efficiently. Ongoing remote support is also available to assist with optimisation and troubleshooting.

Select the option that best suits your level of experience and operational requirements.

We dispatch in-stock items promptly and typical delivery is within 5-10 working days. Larger or high-value ASIC miners may be shipped via insured courier or palletised freight to ensure secure delivery. Please note that delivery times are estimates and may vary depending on stock availability and supplier schedules.

For full details on processing times, pre-orders, international delivery and delivery requirements, please refer to our Shipping Policy.

If you are purchasing as a consumer, you may cancel your order within 14 days of delivery, provided the item is unused and in its original condition. Due to the technical nature of ASIC mining equipment, hardware that has been installed, powered on or configured may not be eligible for return unless faulty.

Faulty goods are handled in accordance with UK consumer law. Business purchases and wholesale orders are non-refundable unless confirmed defective.

For full details, including return conditions and procedures, please refer to our Returns & Refunds Policy.

All ASIC miners are supplied with the original manufacturer’s warranty, provided the unit remains unmodified and is operated in accordance with the manufacturer’s guidelines. Warranty terms, duration and claim procedures are determined by the manufacturer.

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Model

Hash Rate

Power

Efficiency

Algorithm

Antminer L11 Pro

21GH/s

3612W

172J/G

Scrypt

The Antminer L11 PRO series sits within Bitmain’s lineup of Scrypt algorithm miners, positioned above base L11 models and below hydro-cooled variants in terms of raw performance and energy use. The 21G variant offers around 21 GH/s of hashing throughput, which is well suited for retail and small-scale mining operations where simplicity and lower entry cost are priorities.

Under typical sustained conditions, this model draws approximately 3,600–3,900 watts of power, though actual consumption varies with ambient temperature, airflow, miner tuning, and power supply efficiency. The miner uses an air-cooled design with integrated fans and heatsinks to manage heat during continuous 24/7 operation. Bitmain released the L11 PRO series in 2025, broadening its suite of Scrypt miners optimized for balance between performance and electrical efficiency.

Bitmain is a globally recognised manufacturer of ASIC cryptocurrency mining hardware and the creator of the Antminer product line. Since its founding in 2013, the company has been instrumental in ASIC development for a range of proof-of-work algorithms, most notably SHA-256 (Bitcoin) and Scrypt (Litecoin).

Bitmain miners benefit from broad ecosystem support, including regular firmware updates, compatibility with major mining pools, and integration with popular third-party monitoring and management tools. The L11 PRO series reflects Bitmain’s continued refinement in Scrypt mining, emphasising reliability, accessible performance, and operational flexibility for retail miners.

The Antminer L11 PRO 21G typically achieves energy efficiency in the ~170–180 joules per gigahash (J/GH) range under nominal air-cooled conditions. This metric represents the electrical energy required to produce one unit of Scrypt hashing work.

Efficiency depends on ambient intake temperature, fan speed, miner tuning, and the performance of the power supply unit (PSU). For UK and EU miners, where electricity costs are a significant part of operating expense, this efficiency helps contain ongoing power usage while maintaining competitive throughput for Scrypt algorithm workloads.

The Bitmain Antminer L11 PRO 21G mines the Scrypt proof-of-work algorithm, which is used by Litecoin (LTC), Dogecoin (DOGE) (often via merge mining with LTC), and other Scrypt-based digital assets. Scrypt’s design is memory-hard, meaning it places greater emphasis on memory access patterns during hashing compared with other algorithms.

Dedicated Scrypt ASICs like the L11 PRO 21G are engineered to perform this work far more efficiently than GPU or CPU rigs, making them the preferred hardware for miners targeting these networks. Operators typically connect to Scrypt-compatible pools that support LTC, DOGE, or other supported coins based on merge-mining configuration.

ASIC miners such as the Bitmain Antminer L11 PRO 21G are built for continuous 24/7 operation and generally have an operational lifespan of 3–5 years when maintained properly. Critical factors influencing longevity include stable power input, consistent airflow, clean thermal pathways, and moderated intake temperature.

Introduced in 2025, the L11 PRO 21G sits within the current generation of Scrypt ASIC hardware. While new models may continue to push efficiency and performance boundaries, this miner remains a reliable and practical choice for retail home miners throughout its expected lifecycle.

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Frequently asked questions

We accept major debit and credit cards, bank transfer and selected digital payment methods where indicated at checkout. All payments must be received and cleared before goods are dispatched unless otherwise agreed in writing.

For certain orders, we offer a deposit option:

10% deposit for miners valued over £2,000
20% deposit for miners valued under £2,000

The remaining balance must be paid before dispatch. Deposit arrangements are subject to approval and confirmed stock allocation.

All miners are supplied with the original manufacturer’s warranty, provided the unit remains unmodified and is operated in accordance with manufacturer guidelines. Warranty terms and claim processes are determined by the manufacturer.

Yes. We offer an optional Setup & Support package that includes remote installation guidance, power and safety advice, network and mining account setup, and full miner configuration. Ongoing remote support is also available.

Yes. ASIC miners require appropriate electrical capacity and ventilation. We provide guidance on power supply, load considerations and safe operation, but customers remain responsible for ensuring their installation complies with local regulations.

Delivery times vary depending on stock status and location. Estimated timeframes are provided on product pages and at checkout. Pre-orders are subject to manufacturer schedules.

Yes. We support both new purchases and existing operations. Our team can assist with troubleshooting, optimisation, firmware configuration and scaling advice.

No. Mining profitability depends on factors outside our control, including Bitcoin price, network difficulty, power costs and regulatory conditions. We provide hardware and technical support, but returns cannot be guaranteed.

Yes. We supply individual operators and commercial-scale buyers. Please contact us directly to discuss wholesale availability and trade pricing.