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Older Mining Machines Turn Profitable Again as Bitcoin Rises Ahead of Halving – CoinDesk

Older Mining Machines Turn Profitable Again as Bitcoin Rises Ahead of Halving – CoinDesk

With bitcoin’s price jumping to a two-month high above $9,000, even mining equipment thought obsolete is becoming profitable again, at least for a short time. According to the miner profitability index, tracked by mining pools PoolIn and F2Pool, older mining rigs, such as Bitmain’s AntMiner S9 or Canaan’s Avalon A851, can now generate a 10-20% gross margin at an average electricity cost of $0.05 per kilowatt-hour (kWh).








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