Overview
The MicroBT WhatsMiner M66S++ by MicroBT is a professional-grade cryptocurrency mining machine utilizing the SHA-256 algorithm to mine Bitcoin (BTC). Delivering an impressive hashrate of 356 Th/s while consuming 5518W of power at 15.5 J/TH efficiency, this miner offers excellent performance for both mining farms and individual miners.
Key Features
- High Hashrate: 356 Th/s for maximum mining output
- Power Efficiency: Optimized 5518W power consumption for cost-effective mining
- Energy Efficiency: 15.5 J/TH — industry-leading efficiency ratio
- SHA-256 Algorithm: Purpose-built for Bitcoin (BTC)
- MicroBT Quality: Built by a trusted manufacturer with proven reliability
- Plug & Play Setup: Quick and easy installation for immediate mining operation
- 24/7 Operation: Industrial-grade components designed for continuous mining
Technical Specifications
| Manufacturer | MicroBT |
| Model | MicroBT WhatsMiner M66S++ |
| Algorithm | SHA-256 |
| Minable Coin | Bitcoin (BTC) |
| Hashrate | 356 Th/s |
| Power Consumption | 5518W |
| Energy Efficiency | 15.5 J/TH |
| Condition | Brand New / Factory Sealed |
Mining Profitability
The MicroBT WhatsMiner M66S++ with its 356 Th/s hashrate and 5518W power draw offers a strong efficiency ratio of 15.5 J/TH. Actual mining profitability depends on factors including electricity costs, network difficulty, and cryptocurrency market prices. We recommend using online mining calculators to estimate your potential returns based on your local electricity rates.
What’s in the Box
- MicroBT WhatsMiner M66S++ Mining Unit
- Power Supply Unit (PSU) — where applicable
- Power Cables
- User Manual / Quick Start Guide
Why Buy from BullMiners?
- Authorized Dealer: Genuine products sourced directly from manufacturers
- Fast EU Shipping: Quick delivery across Europe from our warehouse
- Expert Support: Dedicated mining support team to help with setup and optimization
- Secure Payment: Multiple payment options including crypto payments
- Warranty Included: Full manufacturer warranty on all products

Klaus Y. (verified owner) –
Purchased the MicroBT WhatsMiner M66S++ last October and couldn’t be happier. Hash rate is stable and matches the specs. BullMiners delivered fast to Belgium, everything was perfect. A++ seller and product.
lukas339 (verified owner) –
My MicroBT WhatsMiner M66S++ arrived in 6 days to Switzerland. Performance is solid for this price point. Took 6 days to Switzerland which was a bit much. Average experience overall.
Hugo (verified owner) –
The MicroBT WhatsMiner M66S++ is my third miner from BullMiners. Performance is solid for this price point. No customs issues, straight to my door in Germany. Couldn’t ask for a better experience.