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MicroBT Whatsminer M66S (300 TH/s)
In stock · $4,103 all-in, delivered, installed and hosted in UAE · MicroBT · Immersion · SHA-256
The MicroBT Whatsminer M66S (300 TH/s) is a immersion-cooled SHA-256 bitcoin ASIC miner from MicroBT. It runs at 300 TH/s while drawing 5,400 W, an efficiency of 18 J/TH. It is in stock, delivered and hosted at one of our sites.
More on this machine: MicroBT Whatsminer M66S price history · MicroBT Whatsminer M66S profitability history · Two years in the UAE, the Whatsminer M66S has never needed to move or switch off · Whatsminer M66S review: a low entry price, and two better immersion machines one step up
MicroBT Whatsminer M66S 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 | 0.000127 BTC | $9.92 | $8.78 | $1.14 |
| Weekly | 0.000891 BTC | $69.47 | $61.48 | $7.99 |
| Monthly | 0.003873 BTC | $301.91 | $267.19 | $34.72 |
| Yearly | 0.046472 BTC | $3,622.55 | $3,205.90 | $416.65 |
Electricity per bitcoin mined: $68,985. Year 1 return: 10%.
MicroBT Whatsminer M66S price history
From $5,838 in Dec 2023 to $2,205 in Sep 2026 (-62%).
| Month | Price per unit | Price per TH |
|---|---|---|
| Dec 2023 | $5,838 | $19.46 |
| Jan 2024 | $6,009 | $20.03 |
| Feb 2024 | $6,018 | $20.06 |
| Mar 2024 | $6,048 | $20.16 |
| Apr 2024 | $5,874 | $19.58 |
| May 2024 | $5,730 | $19.10 |
| Jun 2024 | $5,702 | $19.01 |
| Aug 2026 | $2,283 | $7.61 |
| Sep 2026 | $2,205 | $7.35 |
Where to host the MicroBT Whatsminer M66S
| Site | Cooling | Rate | Uptime | Cost per BTC | Profit per month | All-in per unit | Year 1 return |
|---|---|---|---|---|---|---|---|
| UAE | Immersion | 6.5¢ | 99.3% | $68,985 | $35 | $4,103 | 10% |
| Nigeria | Not offered | 4.5¢ | 73.6% | — | — | — | — |
| Argentina | Not offered | 6.5¢ | 98.7% | — | — | — | — |
MicroBT Whatsminer M66S specifications
| Specification | Value |
|---|---|
| Manufacturer | MicroBT |
| Model | MicroBT Whatsminer M66S |
| Release date | — |
| Algorithm | SHA-256 |
| Hashrate | 300 TH/s |
| Power consumption | 5400 W |
| Efficiency | 18 J/TH |
| Cooling | Immersion |
MicroBT Whatsminer M66S FAQ
How much does the MicroBT Whatsminer M66S cost?
The all-in price of the MicroBT Whatsminer M66S (300 TH/s) is about $4,103 per machine, delivered, imported, installed and hosted in UAE with a two-month hosting deposit. That is the machine itself at $2,205 ($7.35 per TH/s, the Hong Kong price) plus shipping, infrastructure, import duty, customs, setup and the deposit.
Is the MicroBT Whatsminer M66S (300 TH/s) profitable?
As of Nov 1, 2026, hosted in UAE at 6.5¢/kWh, the MicroBT Whatsminer M66S (300 TH/s) is calculated to generate $1.14 daily, $34.72 monthly and $416.65 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 M66S?
Electricity to mine one bitcoin with the MicroBT Whatsminer M66S costs about $68,985 in UAE. Bitcoin trades at $77,951, so every coin it mines is made 12% below the price of buying one.
What is the year 1 return of the MicroBT Whatsminer M66S?
At current bitcoin price and difficulty, the MicroBT Whatsminer M66S returns 10% 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 M66S?
The MicroBT Whatsminer M66S produces 300 TH/s of SHA-256 hashrate and consumes 5,400 W, giving an efficiency of 18 J/TH.
Is the MicroBT Whatsminer M66S air-cooled or hydro-cooled?
The MicroBT Whatsminer M66S is built for immersion cooling, submerged in dielectric fluid in a tank. We run immersion tanks in the UAE.
Where can the MicroBT Whatsminer M66S be hosted?
We can host the MicroBT Whatsminer M66S 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 M66S changed?
The MicroBT Whatsminer M66S sold for $5,838 in Dec 2023 and $2,205 as of Sep 2026, down 62%. Over that time it ranged from $2,205 to $6,084.