Frequently Asked Questions

Everything you need to know before buying an ASIC miner from Bitmine.

What is the best ASIC miner for Bitcoin mining in 2025?+

The Antminer S21 Pro 234TH and the Antminer S21 XP 270TH are the top picks for 2025. The S21 Pro offers an outstanding balance of hashrate (234 TH/s) and efficiency (15 J/TH), making it profitable even at moderate electricity costs. The S21 XP 270TH delivers the highest air-cooled hashrate and suits large professional operations.

How much does the Antminer S21 Pro cost at Bitmine?+

Miner prices change frequently with the crypto market. Visit the product page on Bitmine.shop for the latest price, or contact our team for a quote. We offer bulk discounts for orders of 5+ units.

Does Bitmine ship to my country?+

Yes. Bitmine ships worldwide via DHL, UPS, and FedEx. We serve customers in the USA, UK, Europe, Africa, Asia, and the Middle East. Most orders arrive within 5–8 business days. Import duties may apply depending on your country.

Is Bitcoin mining still profitable in 2025?+

Yes — with the right hardware and electricity rate. The Antminer S21 Pro 245TH earns approximately $10–$15 per day at $0.04/kWh. At $0.07/kWh, it still generates ~$2.77–$8.67/day. Use our mining calculator to estimate profit for your specific electricity cost.

What payment methods does Bitmine accept?+

We accept Bitcoin (BTC), Ethereum (ETH), USDT (Tether), and international bank wire transfer. Crypto payments are confirmed within a few hours. Wire transfers take 1–3 business days to clear before shipping.

What warranty do ASIC miners from Bitmine come with?+

Bitmain Antminers come with a 12-month factory warranty covering hardware defects. Goldshell and Iceriver units are covered by the manufacturer’s warranty. All units are brand new and sealed — no refurbished stock.

What is the difference between Antminer S21 Pro 234T, 245T, and S21 XP 270T?+

All three use SHA-256 and are air-cooled Bitcoin miners from Bitmain. The S21 Pro 234T is the base model with 234 TH/s and 3,510W. The S21 Pro 245T is an upgraded variant with 245 TH/s at 3,610W. The S21 XP 270T is the top-tier version with 270 TH/s, slightly better efficiency (~14 J/TH), and the highest hashrate in the air-cooled lineup.

Can I mine coins other than Bitcoin with ASIC miners?+

Yes. Antminer S-series (SHA-256) can also mine Bitcoin Cash (BCH) and other SHA-256 coins. Goldshell miners can mine Kaspa, Litecoin, Dogecoin, and more. Iceriver miners are specialized for Kaspa (KAS) mining. Bitmine carries miners for multiple algorithms.