MicroBT Unveils M70 Series Featuring 12.5 J/TH Efficiency as Bitcoin Hashprice Hits Historic Lows

MicroBT introduced its newest generation of WhatsMiner machines on Monday, launching the M70 series in Abu Dhabi even as bitcoin mining economics remain at their weakest levels in years.

The new lineup features three efficiency classes—12.5 J/TH, 13.5 J/TH and 14.5 J/TH—with multiple air-cooled and liquid-cooled models across each tier. According to product materials shared by the company, individual units range from roughly 214 TH/s on the lower-end air-cooled M70 to more than 1 PH/s on the high-capacity rack-mounted M79S models.

The release comes at a difficult moment for the hardware market. Bitcoin’s hashprice, which measures miner revenue per unit of hashrate, has fallen to around $35 per PH/s/day—near all-time lows—amid a sustained network hashrate above 1 ZH/s and bitcoin’s price correction.

The combination of record difficulty and falling revenues has cooled demand for new ASICs, leaving manufacturers with elevated inventories and slower order cycles.

Against that backdrop, MicroBT used the event to highlight long-term energy and system-level improvements, including off-grid solar integration and hybrid power models. Founder and CEO Yang Zuoxing said the industry’s growth will depend on improving energy efficiency rather than relying on market cycles.

MicroBT also emphasized a shift toward broader ecosystem partnerships, including joint mining participation. The company named HashSmith as a new joint-mining partner—a notable development as major manufacturers increasingly deploy or co-deploy machines themselves.

Bitmain and Canaan have already leaned on proprietary mining or hosted hashrate structures since the last bear market, as the spot hardware market turns decisively toward buyers. Canaan announced the A16 series in October, featuring a 12.8 J/TH efficiency.