The line contains 15 Bitcoin miners with varying levels of power and energy efficiency.
The most energy efficient equipment reaches 12.5 J/TH.
The Chinese company MicroBT presented the new generation of Bitcoin ASICs on December 8 during the Bitcoin MENA 2025 event, held in Abu Dhabi, United Arab Emirates.
It is about Whatsminer M70 series, including 15 models with different power and efficiency configurations. MicroBT broad its catalog with the Whatsminer M70 series, made up of six families: M70, M72, M73, M76, M78 and M79. They have not gone on sale yet.
Among them, the M79S model surpasses the line of 1 PH/s (petahash per second) hashrate, which positions it as the second most powerful Bitcoin ASIC todayjust behind a Bitmain model (1.16 PH/s) that will be released next January.
Less powerful ASICs start with a hash rate of around 214 TH/s.
Likewise, the group of miners It is distributed in three energy efficiency classes: 12.5 J/TH, 13.5 J/TH and 14.5 J/TH (joules per terahashes), with versions designed for air cooling and others for liquid cooling.
The 12.5 J/TH models: the most efficient range of the series
Within this launch, three other models stand out for reaching the lowest efficiency of the set: 12.5 J/TH.
That figure represents the energy consumption required by the equipment to produce one terahash per second. The smaller this value is, the more profitable the operation of the device is under the same electrical conditions.
- Whatsminer M70S+: offers between 244 TH/s and 280 TH/s. It is an air-cooled model, intended for conventional configurations in data centers or standard rack installations.
- Whatsminer M76S+: reaches between 390 TH/s and 440 TH/s. It comes in a rack server format and is aimed at environments where power density is a relevant factor.
- Whatsminer M73S+: reaches a range of 540 TH/s to 600 TH/s. Due to its capacity, it targets operations that seek to maximize the relationship between installed power and available space.
These values represent a leap in terms of efficiency for MicroBT, since they reduce the energy cost per unit of mining power.
In a current complex situation for Bitcoin miners, where the profitability of mining depends largely on the electrical cost, these equipment are positioned as competitive alternatives within the high efficiency segment.