MicroBT introduced its new Whatsminer M70 bitcoin miner series at the Bitcoin MENA 2025 conference. The lineup covers multiple energy efficiency classes and cooling types, ranging from basic air-cooled models to immersion and hydro cooling solutions. The manufacturer also announced a joint mining partnership with its first collaborator, HashSmith, while founder and CEO Yan Zhaoxin highlighted the importance of energy efficiency for the industry's continued growth.
Overview of the New Whatsminer M70 Series
The series features three energy efficiency tiers: the base M70 model operates at 14.5 J/TH, the mid-tier M70S at 13.5 J/TH, and the top-end M70S+ achieves 12.5 J/TH. The air-cooled variants offer hash rates ranging from 214 TH/s to 244 TH/s, giving users options between performance and energy efficiency. A more detailed description of the series can be found in the article on the M70 miner series, which compiles key specifications and configurations.
Immersion and Hydro Cooling Models
MicroBT introduced immersion-cooled versions — the M76 and M78 — delivering hash rates between 336 TH/s and 476 TH/s. For server rack deployments, the company unveiled the hydro-cooled Whatsminer M79S, boasting a hash rate of 930 TH/s, targeting high-density data centers. These options complement the air-cooled models and expand the range of solutions for various infrastructures; detailed technical specifications are available in the M70 specs review.
MicroBT’s Strategy and Partnership with HashSmith
Alongside the new devices, MicroBT announced its move toward joint mining participation, naming HashSmith as its first partner. During the presentation, founder and CEO Yan Zhaoxin emphasized that the industry's future growth depends on improving energy efficiency rather than market cycles. The company envisions development not only through hardware upgrades but also by expanding service and operational models, as reflected in the recent presentation of new powerful devices.
Comparison with Competitors
The market also features other new releases: Canaan launched air-cooled Avalon A16 and A16XP units with hash rates of 282 TH/s and 300 TH/s at energy consumptions of 13.8 J/TH and 12.8 J/TH, respectively. US-based Auradine opened preorders for its third-generation Teraflux: the air-cooled model delivers 240 TH/s at 10.3 J/TH, while the liquid-cooled version offers 600 TH/s at 9.8 J/TH. Bitmain introduced the Antminer S23 Hydro in May with an energy consumption of 9.5 J/TH. These figures help compare MicroBT’s offerings in terms of energy efficiency and hash rate.
Why This Matters
These updates benefit miners of all scales because energy efficiency directly affects mining costs. Whether operating one or a thousand devices, choosing between air, immersion, or hydro cooling impacts infrastructure requirements, electricity consumption, and potential profitability. It’s also important to be aware of the manufacturer’s partnership initiatives: joint mining participation can provide additional operational options worth considering when planning capacity.
What to Do Next?
- Check the energy efficiency of your current equipment and compare it with the M70 series (14.5–12.5 J/TH) and competitors before upgrading.
- Evaluate cooling options: air-cooled models are easier to deploy, while immersion and hydro cooling require infrastructure but deliver higher hash rates.
- Consider scale and location: air cooling may be preferable for smaller farms, whereas immersion or hydro cooling suits data centers.
- Stay informed about manufacturer offerings and partnerships (such as with HashSmith) as they can influence operational options and pool participation terms.