MicroBT WhatsMiner M66S
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MicroBTSHA-256BTC
WhatsMiner M66S
298 TH/s5,513 WAir-cooled
Profit / day
-$1.69/day
after power at $0.08/kWh
Efficiency
18.50J/TH
Availability
Not stockedWe don’t carry this model. Ask and we’ll try to source one.—
Profitability · SHA-256 · BTC
Is the WhatsMiner M66S profitable?
Not at $0.08 per kWh. The MicroBT WhatsMiner M66S mines Bitcoin on the SHA-256 algorithm at 298 TH/s, drawing 5,513 W (18.5 J/TH). At $0.08 per kWh it earns about $8.90 a day but spends $10.58 on power, so it loses $1.69 a day.
It’s #108 of 269 SHA-256 miners on efficiency. It isn’t in stock with us at the moment. It’s an air-cooled unit, released in November 2023.
- Break-even power price
- $0.067/kWh
- Daily profit rank
- #301of 533
It only makes money below this.
Across every miner we track.
WhatsMiner M66S specifications
Other coins it can mine
Mine instead
BitcoinBTCRanked on
$8.900.000118 BTC
–
0.000034%
$31.0B
−2.0%
QuaiQUAI
$10.571,470 QUAI
+19%
0.39%
$91kLow liquidity
+14.7%
DigiByte (SHA-256)DGB
$9.813,224 DGB
+10%
1.1%Noticeable
$2.3M
−3.3%
eCashXEC
$9.781,724,998 XEC
+10%
0.68%
$1.6M
−6.2%
Bitcoin SVBSV
$8.890.547 BSV
<1%
0.12%
$6.6M
−2.4%
Bitcoin CashBCH
$8.770.0367 BCH
−1%
0.009%
$175.1M
−13.7%
Paid on top
Fractal BitcoinFB
+<$0.010.00153 FB
+<1%
0.000036%
$2.4M
−16.8%Volatile
NamecoinNMC
+<$0.010.000128 NMC
+<1%
0.000036%
$0Illiquid
+0.4%
ElastosELA
+<$0.010.000128 ELA
+<1%
0.000036%
$307k
−43.0%Highly volatile
HathorHTR
+<$0.010.0115 HTR
+<1%
0.000036%
$71kLow liquidity
−17.7%Volatile
Max potential profitUnlikely
-$1.69/day
-$1.69 BTC profit + <$0.01 paid on top
How it compares · SHA-256 miners
| Miner | Rank | Efficiency | Profit / day |
|---|---|---|---|
| Bitmain Antminer S23 Hyd 3U (1.16 PH) | #1 | 9.5 J/TH | $13.48 |
| Bitdeer SealMiner A4 Ultra Hydro | #2 | 9.4 J/TH | $10.38 |
| Bitmain Antminer S23e Hyd U2H (865T) | #3 | 10.0 J/TH | $9.22 |
| Bitmain Antminer S23e Hyd 2U (865Th) | #4 | 10.0 J/TH | $9.22 |
| MicroBT WhatsMiner M60S | #124 | 18.5 J/TH | -$1.05 |
| MicroBT WhatsMiner M66SThis miner | #143 | 18.5 J/TH | -$1.69 |
| Bitmain Antminer S21 Immersion (301Th) | #144 | 18.5 J/TH | -$1.70 |
| MicroBT WhatsMiner M63S | #160 | 18.5 J/TH | -$2.21 |
| MicroBT WhatsMiner M66Newer model | #169 | 19.9 J/TH | -$2.34 |
| MicroBT WhatsMiner M63Earlier model | #192 | 19.9 J/TH | -$2.79 |
More from MicroBT
| Miner | Profit / day |
|---|---|
| MicroBT WhatsMiner M7AS+SHA-256 | $3.52 |
| MicroBT WhatsMiner M7DSSHA-256 | $2.64 |
| MicroBT WhatsMiner M73S+SHA-256 | $2.30 |
| MicroBT WhatsMiner M79SSHA-256 | $1.91 |
| MicroBT WhatsMiner M76S+SHA-256 | $1.66 |
Figures updated 00:01 UTC, 10 November 2026, using today’s network difficulty and coin prices. Estimates, not financial advice.