Released in October 2023, the MicroBT Whatsminer M66S ASIC miner is designed for cryptocurrency mining. In mining, MicroBT Whatsminer M66S generates approximately $11.83 per day before electricity costs. At an electricity price of $0.05 per kWh, the expected net profit is around $5.22. The most profitable coin to mine on this hardware is Quai Sha (QUAI-SHA) (SHA-256) with a hashrate of 298 Th/s at 5513 W. Other coins include Bitcoin (BTC) and Digibyte (DGB-SHA), which can also be profitable depending on network conditions.