MicroBT Whatsminer M78 440TH

The M78 produces 440 TH/s of SHA-256 hashrate at 7,000W and 15.91 J/TH efficiency in the MillionMiner rated specification. Industry sources including Hashrate Index and Blockspace Media document a broader M78 binning range of 440 to 486 TH/s at 14.5 J/TH across the platform. MicroBT rates the unit at plus or minus 3 percent hashrate tolerance. Real world output typically falls between 427 and 500 TH/s depending on batch binning, immersion fluid temperature, and selected operating profile.

Same 7,000W power draw, same 267 x 147 x 401 mm chassis, same immersion tank compatibility, same 380 to 480V three phase power requirements. The M78 produces 440 TH/s versus the M78S at 472 TH/s. That is 32 TH/s (roughly 7 percent) less hashrate from standard grade chips rather than top binned silicon. Lower acquisition cost per unit compensates for the hashrate difference. Volume fleet buyers prioritizing unit count over efficiency favor the M78. Operators with expensive electricity or longer deployment horizons favor the M78S because efficiency savings compound daily.

Electricity rate and deployment horizon decide. At $0.03 per kWh industrial rates with 2 to 3 year deployment horizons, the M78's lower acquisition cost typically wins per dollar of capital spent. At $0.05 per kWh with 3+ year horizons, the M78S recovers its price premium through daily efficiency savings and wins total lifetime returns. At $0.08 per kWh or above, the M78S wins decisively on both daily economics and lifetime returns. Model both scenarios with your specific electricity rate, expected deployment duration, and target ROI before committing fleet capital.

380 to 480V three phase commercial or industrial power. At 415V three phase: approximately 17 amps per phase, fitting standard 20 amp commercial breakers. At 480V three phase: approximately 15 amps per phase. Standard residential and small commercial electrical systems cannot handle the 7,000W continuous load. Same three phase requirements as the M78S, so facilities designed for one model support the other without electrical modifications. PSU ships included but power cord must match your three phase outlet.

Dielectric fluid immersion tanks sized for the miner count plus thermal margin. Required components: immersion tanks (typically 50 to 80 liters of fluid per M78 unit depending on tank geometry), external heat exchangers (coil or plate type) sized for total facility thermal load, fluid circulation pumps, filtration and particulate management, fluid quality monitoring equipment. Compatible dielectric fluids include single phase mineral oils, synthetic esters, and engineered two phase fluids. Shares tank compatibility with M78S and M76 series units in properly sized tanks.

Depends heavily on electricity rate. At MillionMiner's $0.08 per kWh onsite calculator: $14.40 daily revenue, $13.44 electricity, $0.96 net profit per day. Margins are extremely tight at standard rates. At $0.07 per kWh industrial rates: approximately $11.76 daily electricity against similar revenue. At $0.04 per kWh negotiated industrial rates: $6.72 daily electricity, netting $7 to $8 daily profit per unit. Residential electricity above $0.10 per kWh makes the M78 unprofitable at current difficulty. Strictly industrial hardware for operators with negotiated industrial power below $0.05 per kWh.

Yes, with full infrastructure compatibility. Both models share identical 267 x 147 x 401 mm chassis, identical immersion tank connector geometry, identical power requirements, and identical Whatsminer firmware. Mix M78 and M78S units freely in the same immersion tanks based on per unit economics at your electricity rate. Fleet management through standard Whatsminer firmware handles mixed binning transparently. Some operators buy majority M78 units for capital efficiency plus some M78S units for slots where efficiency matters most.

Any SHA-256 proof of work cryptocurrency. Bitcoin (BTC) is the primary target with the largest market and pool infrastructure. Other compatible coins include Bitcoin Cash (BCH), Bitcoin SV (BSV), Fractal Bitcoin (FB), and DigiByte (DGB SHA-256 chain). Merged mining BTC alongside BCH and BSV through supporting pools like ViaBTC and F2Pool adds marginal secondary revenue without reducing Bitcoin hashrate contribution.

No. The M78 requires 380 to 480V three phase industrial power unavailable in residential settings, dielectric fluid immersion tanks with fluid management infrastructure, and professional installation for both electrical service and fluid systems. Home mining hardware caps at around 3,500W per unit on standard 240V 20A circuits. For operators wanting high hashrate home deployment, the Antminer S21 XP at 270 TH/s represents the realistic ceiling. The M78 is strictly industrial hardware for professional mining facilities.

A 100 kW electrical panel supports 14 M78 units producing 6,160 TH/s aggregate versus 14 M78S units producing 6,608 TH/s. The 448 TH/s gap represents 7 percent less fleet output. Alternative: a 50 kW panel supports 7 M78 units producing 3,080 TH/s. A 200 kW panel supports 28 units producing 12,320 TH/s. Scale linearly as electrical capacity grows. Compare these deployments against M79 series hydro options (7 units at 14 kW each for 100 kW panel producing 6,510 TH/s) before committing to an immersion versus hydro facility architecture.

Industrial deployment with three phase power and immersion infrastructure. Step one: install three phase 380 to 480V electrical service. Step two: install and commission immersion cooling infrastructure including tanks, heat exchangers, pumps, and fluid. Step three: submerge M78 units in immersion tank slots. Step four: connect PSU power and Ethernet management. Step five: power on, allow fluid circulation to stabilize, find each miner IP through DHCP, configure pool URL and Bitcoin wallet through the Whatsminer web interface, verify hashrate reaches 427+ TH/s within 15 to 20 minutes.

Immersion maintenance adds overhead compared to air cooled hardware. Monthly fluid quality testing (viscosity, dielectric strength, particulate content). Quarterly fluid filter inspection and replacement. Every 18 to 36 months full fluid replacement depending on fluid type. Heat exchanger cleaning every 6 to 12 months. Hashboard failure rates on immersion hardware run lower than air cooled because chips operate at consistent temperatures without thermal cycling, but fluid management is ongoing overhead. Budget 3 to 5 percent of acquisition cost annually for fluid replacement, filtration media, and spare parts.

Any Stratum compatible Bitcoin pool. Foundry USA leads by network share with competitive FPPS payouts. F2Pool has the longest operational track record and supports merged mining. AntPool remains popular across MicroBT fleets. ViaBTC offers accumulation mode payouts reducing daily variance. For fleet deployments above 4.4 PH/s (equivalent to 10+ M78 units), direct negotiated agreements with major pools typically secure reduced fees below standard 1 to 2 percent rates.

Yes. MillionMiner operates managed hosting facilities with immersion cooling infrastructure capable of supporting M78 deployments. Hosted deployment eliminates the substantial capital cost of building three phase electrical service, immersion tanks, and fluid management from scratch. Professional hosting at negotiated industrial rates often beats self hosting when full infrastructure costs are included. Contact MillionMiner sales through the Get a Quote button for hosting pricing, capacity availability, and deployment timelines.

MicroBT's 360 day factory warranty on the complete machine covers manufacturing defects and hardware failures under normal operation within specified environmental ranges. Warranty exclusions include damage from fluid quality neglect, contamination from improper immersion handling, physical damage during tank maintenance, power surge damage from inadequate electrical protection, and operation outside the 5 to 45 degree Celsius range. Document fluid quality testing schedule and maintenance logs to protect warranty coverage. MillionMiner routes claims through direct MicroBT channels.

Currently out of stock. Use the Notify Me button for email alerts when new inventory arrives. Use the Get a Quote button to contact MillionMiner sales directly for estimated restock timing and priority reservation on incoming batches. Industrial immersion hardware moves quickly when batches arrive because deployment demand is concentrated among facility operators with standing orders.

The M76 series at 5.2 kW covers lighter immersion deployment. M76 standard: 336 to 374 TH/s at 14.5 J/TH. M76S: 362 to 406 TH/s at 13.5 J/TH. M76S+: 390 to 440 TH/s at 12.5 J/TH (best efficiency in the immersion category). The M78 at 7 kW delivers more hashrate per unit but worse efficiency than the top tier M76S+. For operators wanting maximum efficiency in immersion, M76S+ units win. For operators wanting hashrate per tank slot, M78 wins. For operators wanting maximum hashrate per unit at still reasonable efficiency, M78S wins. Match product choice to facility electricity rate and physical tank space constraints.

MicroBT's firmware provides limited overclock options for the M78 platform. The Blockspace Media coverage of the M70 launch documents an overclock mode reaching 10,000W at higher hashrate output for some variants in the immersion series, though specific M78 overclock support depends on firmware version. Immersion cooling's consistent thermal characteristics make overclocked operation more stable than air cooled overclock scenarios. Aggressive overclocking voids warranty and accelerates hardware degradation. Most operators run rated specifications for reliability.

Dramatic efficiency improvements. The M78 at 15.91 J/TH beats the M50 series at 26 to 28 J/TH by roughly 40 to 45 percent, which translates directly to lower electricity cost per terahash. One M78 replaces approximately 4 Whatsminer M50S units at total lower power draw. For operators facing replacement cycles on older generation hardware, upgrading to M78 units delivers substantial electricity cost savings and reduces facility maintenance overhead through fewer machines handling higher aggregate hashrate.

Within MicroBT's immersion lineup: the Whatsminer M78S at 472 TH/s is the top bin sibling, M76S+ at 390 to 440 TH/s covers best efficiency in the immersion category at lower 5.2 kW tier, and M76 / M76S cover entry immersion scales. Cross family at MicroBT: hydro variants M73S, M76 hydro, M79, M79S provide alternative liquid cooling approach, while air cooled M70 and M70S handle facility zones without immersion. Cross brand options: the Antminer S21+ at 235 TH/s and Antminer S21 XP at 270 TH/s cover air cooled deployment. For algorithm diversification, the Antminer KS7 at 45 TH/s covers Kaspa mining. MillionMiner's ASIC hosting service accepts M78 units at negotiated industrial electricity rates.