MicroBT’s WhatsMiner M79S is built for industrial Bitcoin miners chasing petahash-scale output from a single machine. Published specifications place its standard hashrate between 930 and 1,040 terahashes per second, with nominal efficiency of 13.5 joules per terahash.

That puts the M79S near, and potentially above, 1 petahash per second without combining multiple miners. It also brings serious infrastructure demands. This is a hydro-cooled, rack-mounted machine with a normal power envelope around 14 kilowatts and an overclocking envelope that can reach 20 kilowatts.

The specification range comes from Hashrate Index’s reporting on MicroBT’s M70 Series announcement. Buyers should still request a final manufacturer datasheet for the exact batch and operating mode being offered.

One petahash per second equals 1,000 terahashes per second. At the top of its reported standard range, the M79S crosses that threshold with a single machine.
That density matters for large mining operations. More hashrate per rack position can reduce the number of individual machines, network connections and service points needed for a deployment. It does not eliminate the underlying power and cooling burden. A one-petahash miner drawing around 14 kW still requires infrastructure designed for industrial loads.

Early coverage of the M79S, including the original version of this Bitcoin News article, cited output as high as 1.35 PH/s. More recent published specification reporting describes a standard range of 930 to 1,040 TH/s.

The higher figure may reflect an overclocked configuration, an early announcement target or a different operating profile. Until MicroBT publishes final data supporting 1.35 PH/s under defined conditions, buyers should not use that figure as the machine’s normal baseline.

Bitcoin News has updated this article to distinguish the reported standard specification from higher performance claims.

MicroBT has not publicly posted a final retail price for the M79S. In January 2026, Hashrate Index estimated pricing at $25 to $30 per TH.

Using 930 TH/s as the reference point, that estimate implies a hardware cost of approximately:

Those figures are estimates, not an official MicroBT quote. Actual pricing can change based on batch, order size, shipping, tariffs, payment terms, warranty coverage and whether cooling equipment is included.

Before sending payment, ask the manufacturer or vendor for the exact hashrate, operating mode, wall power, shipping date, warranty terms and included components in writing.

At a normal operating load of 14 kW, the M79S would consume approximately 336 kWh per day.

At a 20 kW overclocking load, daily consumption would rise to approximately 480 kWh.

These calculations cover electricity only. They exclude cooling-system power, pool fees, labor, downtime, financing, repairs and other operating expenses.

Bitcoin mining profitability changes with hashprice, network difficulty, transaction fees and the price of bitcoin. A simple operating estimate is:

Gross daily revenue = miner hashrate in PH/s × current hashprice per PH/s
Estimated net operating income = gross revenue − electricity − pool fees − cooling and operating costs

Use current inputs rather than profitability figures quoted at the time of a product announcement.

The Bitmain Antminer U3S23H is one of the closest announced competitors in the same rack-scale hydro category.

On the published figures, Bitmain’s U3S23H offers more hashrate with better efficiency. The M79S may still appeal to operators already standardized on WhatsMiner equipment, service relationships and cooling infrastructure.

Specifications and commercial terms can change between announcement and shipment. Compare final batch datasheets rather than announcement headlines before choosing either machine.

The M79S is designed for professional mining sites, not homes or typical small commercial spaces. A viable deployment requires:

Its hashrate density could be valuable for a site with constrained rack space but abundant power and cooling capacity. For operators without hydro infrastructure, the cost of the supporting system can outweigh the benefit of the machine itself.

Before ordering a WhatsMiner M79S, confirm:

The WhatsMiner M79S is a serious piece of Bitcoin mining infrastructure. Its reported standard range can put one machine above 1 PH/s, while 13.5 J/TH marks a major efficiency improvement over older-generation hardware.

The machine also demands industrial power, hydro cooling and careful procurement. The largest unanswered questions are final price, shipping availability and the operating conditions behind claims above the published 930 to 1,040 TH/s range.

For miners with the infrastructure to run it, the M79S could deliver exceptional hashrate density. Everyone else should price the entire system, not just the box.

This article is for informational purposes only and does not constitute investment advice. Product specifications, pricing and availability can change. Verify all commercial and technical details with MicroBT or an authorized vendor before purchasing.