MicroBT

The WhatsMiner portfolio spans air, hydro, and immersion cooling configurations across successive hardware generations. The M50 generation, rated 110, 122 TH/s, preceded the M60 series unveiled at Blockchain Life 2023 in Dubai: the air-cooled M60S delivers 184, 186 TH/s at 18.5 J/TH, while the immersion-cooled M66S reaches up to 298 TH/s. At the Bitcoin 2024 Conference, MicroBT announced the M6XS+ refresh, extending the lineup to an M60S+ rated 210 TH/s and an M66S+ at 318 TH/s. The M70 generation, launched December 8, 2025, at Bitcoin MENA 2025 in Abu Dhabi, sets the current efficiency benchmark: the air-cooled M70S delivers 226, 258 TH/s at 13.5 J/TH; the hydro-cooled M73S+ reaches 540, 600 TH/s at 12.5 J/TH; and the rack-scale M79S hydro unit tops out at 930, 1,040 TH/s. MicroBT's chip engineering covers 28 nm, 16 nm, and 7 nm process nodes.

Riot Platforms is among WhatsMiner's largest disclosed institutional customers. In June 2023, Riot took delivery of 7.6 EH/s of WhatsMiner units among the first assembled at MicroBT's US facility at Titan Energy Park in Bellefonte, Pennsylvania (the company's first offshore manufacturing site, commissioned in October 2022). In December 2023, Riot committed to a further 18 EH/s purchase. In February 2024, the two parties executed a follow-on agreement for 31,500 M60S miners at $97.4 million (~$16.50/TH), with deliveries in May, June 2024 targeting a capacity increase at Riot's Rockdale, Texas facility from 12.4 EH/s to 15.1 EH/s. Riot's cumulative payments to MicroBT reached $412.9 million by mid-2024, with a remaining $148 million commitment on record. Riot has publicly described its immersion-cooling deployment, heavily WhatsMiner-dependent, as the world's largest of its kind.

MicroBT expanded its North American commercial footprint in September 2025 with the launch of a US-facing online storefront backed by 10,000 units per month of domestic production. The company has also partnered with Heat Core on hydro-cooling and heat-recovery pilot installations in the United States.

Alongside Bitmain, MicroBT occupies one of two dominant positions in the global ASIC manufacturing duopoly. The company has disclosed plans for a Nasdaq IPO, a timeline that has shifted since 2021 due in part to intellectual-property litigation initiated by Bitmain in 2017 and renewed via civil suit in 2021. With the M70 series achieving a 12.5 J/TH efficiency ceiling and domestic US supply capacity now ramping, MicroBT is positioned to capture a larger share of institutional fleet procurement through 2026.