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Whatsminer M66 — Mining Profitability
The Whatsminer M66 (276 TH/s, 19.899 J/TH) trades at an estimated ~$3,464 (October 2026). At the current hashprice ($39/PH/day) it generates ~$10.86/day gross — about $2.95/day net at $0.06/kWh. Break-even electricity price: $0.082/kWh.
Is Bitcoin mining still profitable in 2026? →Specifications
Hashrate
276 TH/s
Power
5,492W
Efficiency
19.899 J/TH
Cooling
Immersion
Release Date
March 2024
Est. $/TH
$12.6/TH
Manufacturer
MicroBT
Live Profitability
Compare with similar models
Whatsminer M66S
298 TH/s · 18.5 J/TH · Immersion
Whatsminer M56S++
230 TH/s · 22 J/TH · Immersion
WhatsMiner M76S
362 TH/s · 14.36 J/TH · Immersion