Whatsminer M70 Series Reviews: M70, M70S, and M73 (2026)

The Whatsminer M70S is rated at ~13.5 J/TH, the lowest J/TH rating of the three. The M70 and M73 are both rated at ~14.5 J/TH, and the M73 is built for raw hashrate (470 to 526 TH/s) with silent, dense hydro operation.

For most beginners, the Whatsminer M70 or M70S is a natural starting point. The M70 has the lowest upfront hardware cost in the series; the M70S is rated at ~13.5 J/TH for operators planning a long hold. Both are air cooled and easy to host. The M73 is built for hydro cooling infrastructure and large hashrate, a strong fit for experienced operators scaling up.

Yes. Our Southeast Texas facility hosts air cooled ASICs (M70, M70S) and hydro cooled ASICs (M73). All three, when bought from Fathom Labs, can be deployed at our $0.07/kWh all in rate plus the one time $30 installation fee per machine. Miners bought elsewhere are hosted at $0.08/kWh with a minimum of 10 units per order.

It depends on your priorities. The M73 offers up to ~2× the raw hashrate of the M70S (470 to 526 vs. ~264 TH/s) in a single chassis, with near silent hydro operation and high rack density. The M73 is rated at 14.5 J/TH, draws ~7,200 W and runs on hydro cooling infrastructure; the M70S is rated at 13.5 J/TH and draws about 3,140 to 5,000 W depending on power mode on standard air cooled racks. The M73 is a strong fit for large scale, space constrained, or noise sensitive deployments. The M70S suits individual miners and operators who plan closely around electricity per terahash.