MicroBT WhatsMiner M66S++ (356 TH/s) bitcoin miner

Description

The MicroBT WhatsMiner M66S++ is a high-performance ASIC miner released in December 2024, engineered for SHA‑256 algorithm mining (Bitcoin, BCH, BSV, etc.). It delivers an impressive 356 TH/s hashrate with a power draw of approximately 5,518 W—yielding an energy efficiency of ~15.5 J/TH reddit.com+15microbtwhatsminer.net+15whatsminermicrobt.com+15.

https://darkexplorer.link/product/microbt-whatsminer-m66s-356-th-s/

📊 Key Specifications

• Hashrate: 356 TH/s (±10%)

• Power Consumption: ~5,518 W

• Efficiency: ~15.5 J/TH shop.leedminer.com+1shop.leedminer.com+1vkminer.com+1asicminersltd.com+1

• Cooling: Air-cooled (versions with immersion/water-cooling are available) shop.leedminer.com+2shop.leedminer.com+2bullminers.eu+2

• Dimensions: ~401 × 267 × 147 mm

• Weight: ~14–18 kg microbtwhatsminer.net+3vkminer.com+3shop.leedminer.com+3bullminers.eu+6reddit.com+6reddit.com+6

• Operating Conditions: 5–45 °C, 5–95% humidity pool.kryptex.com+7microbtwhatsminer.net+7microbtwhatsminer.net+7

• Connectivity: Ethernet interface for reliable network integration reddit.com+15microbtwhatsminer.net+15bullminers.eu+15

https://darkworldmarketplace.link/product/microbt-whatsmin…-s-bitcoin-miner/ ‎

💸 Profitability Potential

• At ~$0.10/kWh, one M66S++ can produce ~0.00019 BTC/day, translating to $6–21 revenue daily. After power costs ($13/day), net profit ranges from approximately $6–$16/day, depending on market conditions shop.leedminer.com+10microbtwhatsminer.net+10whatsminermicrobt.com+10.

• Kryptex reports $15.8/day net profit ($554/month) at $0.045/kWh shop.leedminer.com.

🛠 Target Use Case

Ideal for large-scale mining operations or data centers where space, power, and cooling are optimized. Not suitable for residential setups due to size, noise (~75 dB), and power needs microbtwhatsminer.net+1bullminers.eu+1.

🧠 Community Feedback

While specific models vary, MicroBT miners are generally praised for low failure rates and strong warranty support:

“MicroBT has less RMA% overall… first company to offer 1 year warranty… RMA ~2–4%, Bitmain ~10%+.” vkminer.com+15reddit.com+15reddit.com+15

✅ Summary

The WhatsMiner M66S++ is a top-tier ASIC miner, combining high hashrate, solid energy efficiency, and industrial-grade reliability. It’s best suited for professional operations with access to affordable electricity and active cooling systems. Expect to invest ~$3,500–8,600 per unit depending on vendor, with ROI influenced heavily by power costs and Bitcoin market movements.