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MicroBT

MicroBT Whatsminer M31S

Name: MicroBT Whatsminer M31S
Brand: MicroBT
SKU: MM2026MICROBTWHATSMINERM31S76
Availability: OutOfStock
Rating: 4.9 (16 reviews)

Model: Whatsminer M31S

New

76 TH/s air cooled SHA-256 at 3,220W. 42.4 J/TH, 12V. MicroBT Whatsminer M31S base tier Bitcoin miner. Ships from MillionMiner.

76 TH/s 3220W SHA-256 42.37 J/TH

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Genuine

Tested hardware

Worldwide

Global shipping

Support

Mining experts

Hashrate

76 TH/s

Power

3220 W

Efficiency

42.37 J/TH

Noise

75 dB

Estimated Mining Returns

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

Period	Daily	Weekly	Monthly
Income	$2.60	$18.20	$78.00
Electricity	-$6.18	-$43.26	-$185.40
Profit	$-3.59	$-25.13	$-107.70

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 76 TH/s

Power Consumption 3220 W

Efficiency 42.37 J/TH

Algorithm SHA-256

Model Whatsminer M31S

Release Year Apr 2020

Noise Level 75 dB

Dimensions 130 x 220 x 390mm

Weight 12.5 kg

Voltage 12V

Interfaces Ethernet

Operating Temp 5 - 35 °C

Humidity 5 - 90 %

Cooling Type Air

What's in the Box

Whatsminer M31S

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

Product Details

MicroBT Whatsminer M31S 76TH Base Air Cooled SHA-256 Bitcoin Miner at 3,220W

Mid tier M30 generation. M31S at 76 TH/s sits between M30S (86 TH/s) and M32 (62 TH/s). 3,220W on 12V DC at roughly 42.4 J/TH. Common fleet workhorse from M30 era. Available in bulk from fleet liquidations.

130 x 220 x 390mm at 12.5 kg. 12V input. Ethernet. 5 - 35 °C. MicroBT firmware. Daily electricity $5.41 at $0.07 per kWh. Monthly: $162. Pool configuration through MicroBT firmware interface pointing at any SHA 256 Stratum endpoint.

At 76 TH/s, the Whatsminer M31S contributes to the Bitcoin network alongside hardware from every manufacturer worldwide. revenue from 76 TH/s decreases as the total network grows. Each new miner entering reduces your Whatsminer M31S share of block rewards.

Investment math for the Whatsminer M31S: hardware acquisition plus $5.41 daily power over your deployment timeline. At 76 TH/s, the Bitcoin produced must exceed that total for positive returns.

130 x 220 x 390mm at 12.5 kg. 12V input. Ethernet connectivity. 5 - 35 °C operating range. MicroBT firmware for pool configuration and hashrate monitoring. the MicroBT web interface points the Whatsminer M31S at whichever Bitcoin pool you choose via Stratum. Daily electricity $5.41 at $0.07 per kWh. Monthly: $162.

At 76 TH/s, the Whatsminer M31S contributes to the Bitcoin network alongside hardware from every manufacturer worldwide. revenue from 76 TH/s decreases as the total network grows. Each new miner entering reduces your Whatsminer M31S share of block rewards.

Fleet economics for the Whatsminer M31S: total cost equals purchase price plus $5.41 per day in power times your deployment horizon. Compare that total against what 76 TH/s produces in Bitcoin at current network conditions.

Whatsminer M31S 76TH Base Compact Bitcoin Mining Machine

MicroBT M31S at 76 TH/s and 3,220W on 12V DC. M30 generation base model. Three gens behind M70 series. Below M31S+ (80 TH/s). Lowest M30 output. 12V DC needs PSU. 75 dB. Deep discount only.

Air cooled at 75 dB. Bitcoin, Bitcoin Cash. MicroBT firmware. 130 x 220 x 390mm at 12.5 kg. Ethernet. 5 - 35 °C.

Industrial 75 dB. Dedicated facility. Plan 3220W heat exhaust (10980 BTU/hr).

MicroBT firmware for pool management. Compare pricing vs competitors. Total hashrate determines production. Model conservatively. Factor acquisition and electricity for TCO.

Compare across manufacturers at this tier. Supply chain diversity reduces vendor dependence. MicroBT firmware ecosystem for monitoring and management.

Industrial noise requires purpose built mining space. Plan ventilation for 3220W heat output (10980 BTU/hr per unit). Ethernet per unit. Temperature management within operating range.

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Whatsminer M31S 76TH BTC Miner

Industrial SHA-256 from MicroBT. 76 TH/s at 3220W and 75 dB. 12V. 12.5 kg. Bitcoin, Bitcoin Cash. Ethernet. MicroBT. Compare pricing. TCO at your rate. Factor acquisition and deployment. SHA-256 ASIC. MicroBT firmware. Supply chain options from multiple manufacturers. Model profitability at your electricity rate with current network data. Factor acquisition cost and deployment duration into total cost of ownership comparison against alternatives.

76 TH/s M31S Base

Budget MicroBT entry. Compact 130mm width for tight deployments.

Budget MicroBT Fleet

Lowest M31 series cost. Proven reliability at budget pricing.

Free DDP from MillionMiner

Ships worldwide with MicroBT warranty and free DDP delivery.

Frequently Asked Questions

76 TH/s SHA-256 at 3,220W. Previous-gen MicroBT miner. ~42 J/TH.

Only at ultra-low electricity. Modern hardware strongly recommended.

Yes. Free DDP shipping.