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Whatsminer M66S — Mining Profitability
The Whatsminer M66S (298 TH/s, 18.5 J/TH) trades at an estimated ~$3,949 (October 2026). At the current hashprice ($40/PH/day) it generates ~$11.78/day gross — about $3.84/day net at $0.06/kWh. Break-even electricity price: $0.089/kWh.
Is Bitcoin mining still profitable in 2026? →Specifications
Hashrate
298 TH/s
Power
5,513W
Efficiency
18.5 J/TH
Cooling
Immersion
Release Date
March 2024
Est. $/TH
$13.3/TH
Manufacturer
MicroBT
Live Profitability
Compare with similar models
Whatsminer M66
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362 TH/s · 14.36 J/TH · Immersion