Buy Antminer S21 from €1,379 – New, German Stock

Antminer S21 and S21+ in detail

The Antminer S21 delivers 151 TH/s at 2,650 W, roughly 17.5 J/TH. The S21+ raises that to 216 TH/s at 3,564 W, about 16.5 J/TH. Both sit in the current efficiency class and are the only sensible options if you mine on regular commercial or household tariffs rather than special-rate power.

In practice the jump from 29 J/TH (S19j Pro) to 17.5 J/TH means about 60 % more hashrate for the same electricity bill — exactly the factor that decides whether a setup still works at 20–25 ct/kWh.

Who the S21 is right for

The S21 is an investment for multi-year operation. It pays off with reliably cheap power, sufficient connected load and a way to remove or reuse the waste heat. As a pure test unit in a basement it is oversized — used S19 machines are the cheaper learning curve.

For business customers we enable net prices and invoice EU orders with a valid VAT ID under reverse charge. For multiple units we prepare individual quotes including pallet shipping.

Power connection and cooling

At over 3.2 kW of continuous load the S21 needs its own adequately rated feed and uses about 79 kWh per day. Air-cooled noise is around 75 dB, which requires a separate, well-ventilated room. Running several units means planning intake and exhaust airflow from the start — recirculating hot air costs hashrate and lifespan.

Shipping, warehouse and delivery time

Stocked units ship within 2–4 business days from our warehouse in Bavaria, Germany. Because the hardware is already imported and cleared inside the EU, there is no import VAT, no customs paperwork and no waiting for air freight from Asia. Models sourced directly from the factory show their own delivery time on the product page.

We ship insured to Germany, Austria, Switzerland and the rest of the EU. Orders above 1,000 € ship free within Germany, and express shipping is available for stocked units.

Payment, invoice and warranty

You can pay by bank transfer, credit card, PayPal, Apple Pay or cryptocurrency. Every order comes with a proper invoice showing VAT. EU business customers with a valid VAT ID are invoiced at 0 % under the reverse-charge scheme, and we can switch your session to B2B mode with net prices.

Most new miners come with a 6-month warranty. Used units are tested, cleaned and shipped with a logged hashrate; the exact commitment is stated on each product page.

Advice before you buy

We help you check electricity tariff, power connection, cooling, noise and realistic payback before you order — including when the honest answer is that a machine will not pay off at your kWh price. Send us your electricity cost and the planned location and we will run the numbers with you.