MicroBT WhatsMiner M66S (290Th)
 Hashrate: 290T |
 Power: 5365W |
 Efficiency: 18.50 J/Th |
 PSU Included |
 Free Shipping |
USD | BTC
22 March - 25 March, 2026
0.02636364 
Description
If you run dielectric-fluid cooling, MicroBT WhatsMiner M66S (290Th) brings up to 290 TH/s on SHA-256 at about 5365W—useful for planning load and tank capacity. Use the hashrate and wall-power figures to estimate hosting costs and electrical load before ordering.
Operators often group M60 Series units together to keep electrical and cooling expectations consistent.
Tank cooling keeps heat where it belongs—in the fluid—rather than in the building air. Use the wall-power number for breaker sizing, PDUs, and energy estimates. An easy choice when you want to compare models quickly and deploy without surprises.
Specifications
| Manufacturer | MicroBT |
| Model | WhatsMiner M66S |
| Release | Oct 2023 |
| Size | 267 x 147 x 401mm |
| Weight | 18000g |
| Noise level | 50dB |
| Cooling | Immersion |
| Power | 5365W |
| Interface | Ethernet |
| Temperature | 5 - 40 °C |
| Humidity | 5 - 95% |
NOTE
- Incorrect input voltage can cause damage to the miner.
- Use two AC input wires, each with a 16-amp rating.
- Operation is recommended at altitudes below 2000 meters.
Purchasing Guidelines
- The listed retail price does not include customs duties or applicable taxes.
- Orders cannot be canceled or refunded once submitted.
- Product images are for reference purposes only; the actual shipped product will prevail.
Shipping Details
- Products will be shipped from China.
- Fully paid orders will be processed on a first-come, first-served basis.
- Customers bear responsibility for customs delays or issues.
Warranty
- 180-day warranty period starts from the shipping date.
- Valid only for the original purchaser.
- We are not responsible for damages due to non-compliance with instructions.