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MicroBT

MicroBT Whatsminer M21S

Model: Whatsminer M21S

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56 TH/s 3360W SHA-256 60 J/TH

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Genuine

Tested hardware

Worldwide

Global shipping

Support

Mining experts

Hashrate

56 TH/s

Power

3360 W

Efficiency

60.00 J/TH

Noise

75 dB

Estimated Mining Returns

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

Period Daily Weekly Monthly
Income
$2.37 $16.59 $71.10
Electricity
-$6.45 -$45.15 -$193.50
Profit
$-4.08 $-28.56 $-122.40

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

Adjust rate in the bar above

Updated daily. Last refresh: Apr 21, 2026. Estimates at $0.08/kWh.

Full Specifications

Hashrate 56 TH/s
Power Consumption 3360 W
Efficiency 60.00 J/TH
Algorithm SHA-256
Model Whatsminer M21S
Release Year Jun 2019
Noise Level 75 dB
Dimensions 155 x 240 x 390mm
Weight 12.5 kg
Voltage 100-240V
Interfaces Ethernet
Operating Temp 5 - 45 °C
Humidity 5 - 95 %
Cooling Type Air

What's in the Box

Whatsminer M21S
Power supply unit (PSU)
Power cables
Quick start guide

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

Quick Setup

1

Connect PSU to miner and plug into the outlet

2

Connect ethernet cable to your router or switch

3

Find miner IP via router admin or IP scanner tool

4

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

Product Details

MicroBT Whatsminer M21S 56TH Universal Voltage Air Cooled SHA-256 Bitcoin Miner

MicroBT M21S at 56 TH/s on universal AC. Higher tier of the M20 generation. 3,360W at 75 dB on 100 to 240V. The AC input without PSU is the deployment advantage. 56 TH/s is below the competitive threshold at current difficulty on standard electricity.

155 x 240 x 390mm at 12.5 kg. 100-240V input. Ethernet. 5 - 45 °C. MicroBT firmware. Daily electricity $5.64. Monthly: $169.

The Whatsminer M21S competes against the full Bitcoin network hashrate of 600+ EH/s. At 56 TH/s, its share is meaningful for fleet production at current difficulty. the network recalibrates mining difficulty approximately every 14 days to maintain ten minute block intervals.

Investment math for the Whatsminer M21S: hardware acquisition plus $5.64 daily power over your deployment timeline. At 56 TH/s, the Bitcoin produced must exceed that total for positive returns.

155 x 240 x 390mm at 12.5 kg. 100-240V input. Ethernet connectivity. 5 - 45 °C operating range. MicroBT firmware for pool configuration. Pool compatible with F2Pool, Foundry, AntPool, ViaBTC, and every other SHA 256 Stratum pool. Daily electricity $5.64 at $0.07 per kWh. Monthly: $169.

The Whatsminer M21S competes against the full Bitcoin network hashrate of 600+ EH/s. At 56 TH/s, its share is meaningful for fleet production at current difficulty. the network recalibrates mining difficulty approximately every 14 days to maintain ten minute block intervals.

The Whatsminer M21S purchase decision comes down to whether 56 TH/s of SHA-256 hashrate generates more Bitcoin value than the hardware and electricity cost over your planned operating period. Current difficulty and Bitcoin price determine the answer.

Whatsminer M21S 56TH Universal Voltage Legacy Bitcoin Miner

MicroBT M21S at 56 TH/s and 3,360W on universal 100 to 240V. M20 generation. Less hashrate than M20S (68 TH/s) at same power but with AC input. Very old hardware. 75 dB. Deep discount. Universal voltage is its advantage.

Air cooled at 75 dB. Bitcoin, Bitcoin Cash. MicroBT firmware. 155 x 240 x 390mm at 12.5 kg. Ethernet. 5 - 45 °C.

75 dB standard industrial. Dedicated mining space required.

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 diversity reduces vendor dependence. Legacy hardware carries additional risk of limited support and firmware updates.

Legacy hardware requires careful evaluation. Factor remaining operational life, availability of replacement parts, firmware support status, and seller reliability into your purchase decision. Newer hardware is dramatically more efficient but costs more per unit.

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Whatsminer M21S 56TH BTC Miner

Industrial SHA-256 from MicroBT. 56 TH/s at 3360W and 75 dB. 100-240V. 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. Legacy hardware discount. Model profitability at your electricity rate. Legacy hardware at deep discount. Factor acquisition and remaining operational life.

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FAQ

Frequently Asked Questions

56 TH/s SHA-256 at 3360.00W. Bitcoin miner from MicroBT.

All SHA-256 cryptocurrencies: Bitcoin (BTC), Bitcoin Cash (BCH), BSV, eCash (XEC).

Yes. Free worldwide DDP shipping to 50+ countries. Genuine hardware with warranty.

Yes. Professional Bitcoin miner hosting from $0.055/kWh with 99.9% uptime and 24/7 monitoring.