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MicroBT

MicroBT WhatsMiner M66S Plus Plus (356Th)

Name: MicroBT WhatsMiner M66S Plus Plus (356Th)
Brand: MicroBT
SKU: MM2026MICROBTWHATSMINERM66S356
Availability: OutOfStock
Rating: 4.9 (16 reviews)

Model: WhatsMiner M66S++

New

356 TH/s hydro cooled SHA-256 miner at 5,518W. 15.5 J/TH, 100 to 240V. MicroBT's top M66S hydro variant. Ships from MillionMiner with warranty.

356 TH/s 5518W SHA-256 15.5 J/TH

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Genuine

Tested hardware

Worldwide

Global shipping

Support

Mining experts

Hashrate

356 TH/s

Power

5518 W

Efficiency

15.50 J/TH

Noise

50 dB

Estimated Mining Returns

Based on current BTC price & network difficulty. Indicative only.

Period	Daily	Weekly	Monthly
Income	$12.16	$85.12	$364.80
Electricity	-$10.59	-$74.13	-$317.70
Profit	$1.57	$10.99	$47.10

Using 0.080 $/kWh · Network difficulty as of today. Estimates only.

Adjust rate in the bar above

Updated daily. Last refresh: Apr 19, 2026. Estimates at $0.08/kWh.

Full Specifications

Hashrate 356 TH/s

Power Consumption 5518 W

Efficiency 15.50 J/TH

Algorithm SHA-256

Model WhatsMiner M66S++

Release Year Dec 2024

Noise Level 50 dB

Dimensions 267 x 147 x 401mm

Weight 18 kg

Voltage 100-240V

Interfaces Ethernet

Operating Temp 5 - 40 °C

Humidity 5 - 95 %

Cooling Type Hydro

What's in the Box

WhatsMiner M66S++

Power supply unit (PSU)

Power cables

Quick start guide

Contents may vary by batch. Exact items listed in order confirmation.

Quick Setup

Connect PSU to miner and plug into the outlet

Connect ethernet cable to your router or switch

Find miner IP via router admin or IP scanner tool

Open web interface, enter pool URL and wallet — start mining

Hydro-cooled miners require 380-415V three-phase power and a hydro cooling loop. Standard household outlets are not compatible. Contact our team for hosting options or setup guidance.

Product Details

MicroBT Whatsminer M66S Plus Plus 356TH Hydro Cooled SHA-256 Bitcoin Miner

The MicroBT Whatsminer M66S++ produces 356 TH/s at 5,518W in a hydro cooled chassis on universal 100 to 240V. Top bin in the M66S hydro series within MicroBT's M60 generation.

Universal voltage on a hydro miner is rare. Most hydro Bitcoin miners require 380V+ three phase. The M66S++ runs on standard single phase power, making it one of very few water cooled Bitcoin mining options for facilities without industrial electrical infrastructure.

50 dB water cooled at 18 kg in a compact 267 x 147 x 401mm chassis. Ethernet connectivity. Water or water glycol closed loop cooling. Standard plumbing.

The M66S+ (318 TH/s, 5,406W) and base M66 (280 TH/s, 5,572W) share the same chassis at lower hashrate bins. All are interchangeable in the same cooling infrastructure.

As M60 generation, the M66S++ sits below the current M70 hydro series in efficiency. But the universal voltage advantage is unique. The M70 hydro models (M73 series) require 380 to 480V three phase. For single phase facilities wanting hydro Bitcoin mining, the M66S++ may be the best current option.

5 to 40 degrees Celsius at 5 to 95 percent humidity. Bitcoin, Bitcoin Cash, all SHA 256. MicroBT firmware.

Bitcoin mining with liquid cooling offers several operational advantages over air cooled alternatives: more consistent chip temperatures extend component life, elimination of fan noise reduces acoustic impact, and higher thermal headroom allows sustained peak performance without throttling. The infrastructure investment in cooling systems (water lines, pumps, heat exchangers or immersion tanks) is offset by longer hardware lifespan and higher uptime percentages across the fleet.

For operators evaluating total cost of ownership across a 3 to 5 year deployment horizon, the reduced maintenance, lower failure rates, and sustained hashrate consistency of liquid cooled hardware can outperform air cooled alternatives despite higher initial infrastructure cost.

Whatsminer M66S++ 356TH Top Hydro Cooled Bitcoin Miner

MicroBT M66S++. 356 TH/s hydro at 5,518W on universal 100 to 240V. Rare hydro miner on single phase power. Top bin M66S series.

M70 hydro (M73 series) requires 380V+ three phase. The M66S++ serves facilities with only single phase power that want water cooled Bitcoin mining. Unique capability.

50 dB at 18 kg. 267 x 147 x 401mm. M66S+ (318 TH/s) and M66 (280 TH/s) share the same chassis at lower bins. MicroBT firmware. 5 to 40 degrees. Bitcoin, Bitcoin Cash, all SHA 256.

Liquid cooling extends component life through more consistent thermal management. Reduced fan count means fewer mechanical failure points per unit. Sustained peak performance without thermal throttling. Higher total uptime percentage across fleet deployments compared to air cooled equivalents.

Liquid cooled hardware requires infrastructure planning: water lines, pumps, heat exchangers or tanks. The investment pays back through higher uptime, longer component life, and sustained hashrate consistency. Budget for both hardware acquisition and cooling infrastructure in total cost of ownership calculations.

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Whatsminer M66S++ 356TH Hydro BTC Miner

Moderate noise SHA-256 at 356 TH/s from MicroBT. 356 TH/s SHA 256 hydro at 5,518W on 100 to 240V universal. Rare hydro on single phase. 50 dB. 18 kg at 267 x 147 x 401mm. Top bin M66S. Ethernet. No three phase needed. MicroBT firmware. Bitcoin, Bitcoin Cash. 5 to 40 degrees. Liquid cooling for extended component life, reduced maintenance, and sustained peak hashrate without thermal throttling. MicroBT manufacturer. Ethernet connectivity for pool configuration. Compare current pricing with competing models for best fleet value.

356 TH/s Hydro at 15.5 J/TH

MicroBT's most efficient M66S hydro variant. Top silicon binning for best performance per watt.

Universal 100 to 240V Hydro

Rare universal voltage support in a hydro miner. Deploy in facilities with standard single phase power.

Free DDP Worldwide

Ships from MillionMiner with MicroBT warranty and free DDP delivery.

Frequently Asked Questions

356 TH/s SHA-256 at 5,518W. MicroBT M66S++ Bitcoin miner. 15.5 J/TH.

Yes. Free DDP shipping.