Whatsminer M66S+
Bitcoin miner from MicroBT. The middle machine of the M66 immersion range, quieter and more stable than anything air cooled. It needs a tank and fluid handling, not a fan wall.
Whatsminer M66S+ versions
The same machine, binned at the factory. Choose the rate you want; the quote names the batch actually allocated to you.
| Hashrate | Power | Efficiency | Selection |
|---|---|---|---|
| 318 TH/s | 5,406 W | 17.0 J/TH | Selected |
| 300 TH/s | 5,100 W* | 17.0 J/TH | Select 300 TH/s |
* Derived from the rated efficiency where the manufacturer publishes no separate figure for that bin.
About the Whatsminer M66S+
The Whatsminer M66S+ is the step between the M66S and the M66S++ in MicroBT's M66 immersion series, in the same dimensions. In this factory version it runs at 318 TH/s on 5,406 W, which is 17.0 J/TH; the 300 TH/s version draws about 5,100 W at the same efficiency. Each version is more efficient than any version of the M66S; the M66S++ goes further.
It needs three phase power at 380 to 480 V and draws about 129.7 kWh a day per unit. Instead of a fan wall it needs a tank and fluid handling: the site provides a dielectric fluid tank, fluid handling procedures and external heat rejection, plus power cords and a PDU. The operating range is 5 to 45 °C fluid temperature. Each unit measures 267 × 147 × 401 mm and weighs 16.0 kg, like every M66 model in our catalog.
Specifications
Manufacturer reference values, confirmed per batch on the quote.
Scope of delivery
- The miner with integrated PSU
- Original manufacturer packaging
- Serial numbers per unit and warranty reference
- Dielectric fluid tank
- Fluid handling procedures
- External heat rejection
- Power cords and PDU
Immersion cooling. Nearly silent, stable temperatures, almost no dust and typically longer hardware life. Pulling a unit for service is messier than on a dry site.
Energy only: 5,406 W rated power, 24 hours, one unit. Cooling overhead and PSU losses not included; no revenue assumptions.
How much power does the Whatsminer M66S+ use?
How efficient is the Whatsminer M66S+?
Which coins can the Whatsminer M66S+ mine?
What does a site need for the Whatsminer M66S+?
How loud is the Whatsminer M66S+?
What warranty comes with the Whatsminer M66S+?
Can I order a single unit?
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Read before you buy the Whatsminer M66S+
The breakeven power price, and why we ask for yours first
Every machine has an electricity price above which it stops making money. Work that number out and most of the hardware decision answers itself.
Air, hydro or immersion: matching cooling to your site
The cooling route you pick decides which machines you can even consider, how loud your site is, and how much you spend before the first miner is switched on.
Sizing power and cooling before the hardware arrives
The machines are the short lead time. The electrical and thermal capacity they need is the long one, and it has to be finished before the first pallet lands.
Compared with related models
The closest machines by condition, algorithm, manufacturer and cooling.