MicroBT WhatsMiner M66S++
The WhatsMiner M66S++ is a liquid-cooled SHA-256 miner from MicroBT, released in December 2024 for BTC, BCH and BSV. It is rated at 356 TH/s on 5518 W, giving an efficiency of 15.5 J/TH.

Income vs electricity · Mines BTC · 356 TH/s · 5,518 W · SHA-256
| Income | Electricity | Profit | |
|---|---|---|---|
| Day | $13.55 | −$4.82 | $8.73 |
| Week | $94.83 | −$33.74 | $61.09 |
| Month | $406.44 | −$144.62 | $261.82 |
| Year | $4,945 | −$1,759 | $3,185 |
Where to buy
| Seller | Ships from | Availability | ROI | Price | |
|---|---|---|---|---|---|
Cryptoware
✓ Verified seller
|
United Kingdom | In stock | 373 days | $3,255 | $3,255View offer → |
![]() Yesmining
✓ Verified seller
|
China | In stock | 993 days | $8,660 | $8,660View offer → |
Price history
━ Average price ━ Lowest price
Specifications
Mineable coins
About this miner
The MicroBT WhatsMiner M66S++ is an ASIC miner by MicroBT for the SHA-256 algorithm, rated at 356 TH/s on 5,518 W. It came out in December 2024. At 15.5 J/TH it is 41% more efficient than the median SHA-256 miner we track (26.4 J/TH). At $0.036/kWh it ranks #39 of 247 SHA-256 miners by daily profit, earning about $8.73 a day mining BTC. The best price on MinerPrices is $3,255. At today's rates it would pay for itself in about 373 days. At 75 dB it belongs in a dedicated mining site or hosting facility.
Similar miners
| MicroBT WhatsMiner M76S+ | 390 TH/s | 5,200 W | $10.30 |
| MicroBT WhatsMiner M76S | 362 TH/s | 5,200 W | $9.23 |
| MicroBT WhatsMiner M76 | 336 TH/s | 5,200 W | $8.24 |
| Auradine Teraflux AI3680 | 360 TH/s | 6,840 W | $7.72 |
| MicroBT WhatsMiner M66S+ | 318 TH/s | 5,406 W | $7.38 |
| MicroBT WhatsMiner M63 | 334 TH/s | 6,646 W | $6.90 |

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