Whatsminer M66S
Bitcoin miner from MicroBT. Whatsminer built for immersion tanks. Proven MicroBT reliability with firmware optimized for immersion.
- New, MicroBT warranty
- Price and lead time on your quote
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 |
|---|---|---|---|
| 310 TH/s | 5,580 W | 18.0 J/TH | Select 310 TH/s |
| 298 TH/s | 5,513 W | 18.5 J/TH | Selected |
| 292 TH/s | 5,402 W | 18.5 J/TH | Select 292 TH/s |
About the Whatsminer M66S
The Whatsminer M66S is MicroBT's SHA-256 miner built for immersion tanks, with firmware optimized for immersion. In this factory version it runs at 298 TH/s on 5,513 W, which is 18.5 J/TH; the 310 TH/s version runs at 18.0 J/TH and the 292 TH/s version at 18.5 J/TH. Within the M66 series it sits in the middle: the M66S+ and M66S++ are more efficient, the M66 less.
It needs three phase power at 380 to 480 V and draws about 132.3 kWh a day per unit. In the tank it runs without fans of its own, so the site provides a dielectric fluid tank, fluid handling procedures and external heat rejection, plus power cords and a PDU; the noise on site comes from pumps and the heat rejection. The operating range is 5 to 45 °C fluid temperature. Each unit measures 267 × 147 × 401 mm and weighs 16.0 kg.
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: 5,513 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?
How fast can you deliver?
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.