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MicroBT Whatsminer M66 (274 TH/s)
In stock · $3,697 all-in, delivered, installed and hosted in UAE · MicroBT · Immersion · SHA-256
The MicroBT Whatsminer M66 (274 TH/s) is a immersion-cooled SHA-256 bitcoin ASIC miner from MicroBT released in Oct 2023. It runs at 274 TH/s while drawing 5,453 W, an efficiency of 19.9 J/TH. It is in stock, delivered and hosted at one of our sites.
More on this machine: MicroBT Whatsminer M66 price history · MicroBT Whatsminer M66 profitability history · Whatsminer M66 review: 19.9 J/TH in the tank, and the lowest entry price in its family
MicroBT Whatsminer M66 profitability
As of Nov 1, 2026, hosted in UAE at 6.5¢/kWh with 99.3% uptime. Bitcoin $77,951.
| Period | Bitcoin mined | Revenue | Electricity | Profit |
|---|---|---|---|---|
| Daily | 0.000116 BTC | $9.06 | $8.87 | $0.20 |
| Weekly | 0.000814 BTC | $63.45 | $62.09 | $1.37 |
| Monthly | 0.003537 BTC | $275.75 | $269.81 | $5.94 |
| Yearly | 0.042445 BTC | $3,308.60 | $3,237.36 | $71.23 |
Electricity per bitcoin mined: $76,273. Year 1 return: 2%.
MicroBT Whatsminer M66 price history
From $3,420 in Oct 2023 to $1,813 in Sep 2026 (-47%).
| Month | Price per unit | Price per TH |
|---|---|---|
| Oct 2023 | $3,436 | $12.54 |
| Nov 2023 | $3,883 | $14.17 |
| Dec 2023 | $3,833 | $13.99 |
| Jan 2024 | $3,710 | $13.54 |
| Feb 2024 | $3,406 | $12.43 |
| Mar 2024 | $3,258 | $11.89 |
| Apr 2024 | $3,389 | $12.37 |
| May 2024 | $3,620 | $13.21 |
| Jun 2024 | $3,458 | $12.62 |
| Jul 2024 | $3,299 | $12.04 |
| Aug 2024 | $3,074 | $11.22 |
| Sep 2024 | $3,025 | $11.04 |
| Oct 2024 | $3,258 | $11.89 |
| Nov 2024 | $3,669 | $13.39 |
| Dec 2024 | $3,543 | $12.93 |
| Jan 2025 | $3,644 | $13.30 |
| Feb 2025 | $3,184 | $11.62 |
| Mar 2025 | $3,028 | $11.05 |
| May 2026 | $1,933 | $7.06 |
| Jun 2026 | $1,873 | $6.84 |
| Jul 2026 | $1,813 | $6.62 |
| Aug 2026 | $1,813 | $6.62 |
| Sep 2026 | $1,813 | $6.62 |
Where to host the MicroBT Whatsminer M66
| Site | Cooling | Rate | Uptime | Cost per BTC | Profit per month | All-in per unit | Year 1 return |
|---|---|---|---|---|---|---|---|
| UAE | Immersion | 6.5¢ | 99.3% | $76,273 | $6 | $3,697 | 2% |
| Nigeria | Not offered | 4.5¢ | 73.6% | — | — | — | — |
| Argentina | Not offered | 6.5¢ | 98.7% | — | — | — | — |
MicroBT Whatsminer M66 specifications
| Specification | Value |
|---|---|
| Manufacturer | MicroBT |
| Model | MicroBT Whatsminer M66 |
| Release date | Oct 2023 |
| Algorithm | SHA-256 |
| Hashrate | 274 TH/s |
| Power consumption | 5453 W |
| Efficiency | 19.9 J/TH |
| Cooling | Immersion |
MicroBT Whatsminer M66 FAQ
How much does the MicroBT Whatsminer M66 cost?
The all-in price of the MicroBT Whatsminer M66 (274 TH/s) is about $3,697 per machine, delivered, imported, installed and hosted in UAE with a two-month hosting deposit. That is the machine itself at $1,813 ($6.62 per TH/s, the Hong Kong price) plus shipping, infrastructure, import duty, customs, setup and the deposit.
Is the MicroBT Whatsminer M66 (274 TH/s) profitable?
As of Nov 1, 2026, hosted in UAE at 6.5¢/kWh, the MicroBT Whatsminer M66 (274 TH/s) is calculated to generate $0.20 daily, $5.94 monthly and $71.23 yearly after electricity, at a bitcoin price of $77,951. It always changes with bitcoin's price and network difficulty.
What does it cost to mine one bitcoin with the MicroBT Whatsminer M66?
Electricity to mine one bitcoin with the MicroBT Whatsminer M66 costs about $76,273 in UAE. Bitcoin trades at $77,951, so every coin it mines is made 2% below the price of buying one.
What is the year 1 return of the MicroBT Whatsminer M66?
At current bitcoin price and difficulty, the MicroBT Whatsminer M66 returns 2% in its first year at our sites, after electricity, against everything paid up front: the machine, shipping, import, infrastructure, setup and hosting deposit. You keep the machine and every bitcoin it mines. It always changes.
What is the hashrate and power consumption of the MicroBT Whatsminer M66?
The MicroBT Whatsminer M66 produces 274 TH/s of SHA-256 hashrate and consumes 5,453 W, giving an efficiency of 19.9 J/TH.
Is the MicroBT Whatsminer M66 air-cooled or hydro-cooled?
The MicroBT Whatsminer M66 is built for immersion cooling, submerged in dielectric fluid in a tank. We run immersion tanks in the UAE.
Where can the MicroBT Whatsminer M66 be hosted?
We can host the MicroBT Whatsminer M66 in UAE (6.5¢/kWh, 99.3% uptime). The bitcoin it mines goes straight to your own wallet.
How has the price of the MicroBT Whatsminer M66 changed?
The MicroBT Whatsminer M66 sold for $3,420 in Oct 2023 and $1,813 as of Sep 2026, down 47%. Over that time it ranged from $1,813 to $3,915.
When was the MicroBT Whatsminer M66 released?
MicroBT announced the MicroBT Whatsminer M66 in Oct 2023.