At an operating expense of $0.04 per kilowatt-hour (kWh), the current crop of SHA256 bitcoin miners sorts into a clear profit ladder, with high-hashrate hydro units setting the pace and a few efficient air and immersion options keeping things interesting. The Four-Cent Test: Which Bitcoin Mining Rigs Still Shine The king of the hill at […]from Bitcoin News https://news.bitcoin.com/26-rigs-one-cheap-opex-2025s-definitive-ranking-of-modern-bitcoin-miners/
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