Whatsminer M21S profitability Review – Miner Land

MICROBT WHATSMINER M21S 56TH Miner is a Bitcoin (BTC) and Bitcoin Cash (BCH) SHA-256 algorithm Asic Miner that uses 12nm Asic chip technology sold and traded by ASIC MINER MARKET company and is designed and manufactured by MICROBT technology company based in Beijing, China. In this article, we will have Whatsminer M21S profitability.

Technology company MICROBT specializes in blockchain technology, supplies an integrated circuit chip, and manufactures mining equipment. Released in June 2019, the Microbt Whatsminer M21S 56TH miner is equipped with the TSMC 12nm chip technology, which improves the performance and becomes the most profitable bitcoin cash miner the most.

The Whatsminer M21S is manufactured with advanced 2-fan heat dissipation technology and includes a controller.

Whatsminer M21S 56TH Miner allows its users Bitcoin (BTC) with a maximum hash rate of 56TH/s and power consumption of 3360W ± 10%, the energy efficiency of 0.048 j /GH, cooling of 2 x 12038 fans, A power dimensions of 155mm (L) * 240mm (W)* 390mm (H) and also an operating temperature of -5c-45c. Mining with Whatsminer M21S 56TH Miner makes mining very easy, efficient, and profitable for its users.

Whatsminer M21S profitability: Specifications

  • Manufacturer: MicroBT
  • Model: Whatsminer M21S
  • Publication: June 2019
  • Size: 155x240x390mm
  • Weight: 12500g
  • Chip name: TSMC
  • Chip size: 12nm
  • Noise level: 75dB
  • Fan: 2
  • Performance: 3360W
  • Interface: Ethernet
  • Temperature: 5-45ºC
  • Humidity: 5-95%

Whatsminer M21S Overview

In May 2019, MicroBt launched its well-known Whatsminer M20S series. Whatsminer is MicroBt’s Bitcoin mining hardware brand with an ASIC plug-and-play mining design sold by MicroBt. The Whatsminer M21s mines Bitcoin (BTC) or Bitcoin Cash (BCH) instantly, helping miners jump into the new digital currency frenzy.

Regarded as the ultimate win-win reproduction of the previous Whatsminer M10 series models, the products consisted of M20, M21, M21b, M20s, and M21s, all of which use Samsung’s 8nm chip, and MicroBt’s new logo release more functions and is more characteristic.

Founded in 2016, Shenzhen Bit Microelectronics Technology (aka MicroBt) is one of the leading manufacturers of application-specific integrated circuits (ASIC). The company is engaged in the production and design of high-end 28nm/16nm/7nm working chips and provides development/support in areas such as blockchain technology, cloud computing, and artificial intelligence.

About Whatsminer M21S

Like its predecessor Whatsminer M21, Whatsminer M21S features an integrated design with a long power supply and smaller sizes. The hashboard has a design like that of the Whatsminer m21 to buy the Hashboard separately to pair with M21 components.

Whatsminer M21S profitability: Features

The hash rate of the Whatsminer M21S is 56T, which gives it an edge over the M21 model, and the physical size is 155 x 240 x 390 mm with a weight of 7.1 kg. The large dimension makes the device less bulky to handle and also helps to save space in mining farms.

The M21 comes with a P5-12-2200-V1 power supply to produce DC 12.8V 172A output, and the 10A socket in the mining farm works well.

The power supply comes with an aluminum frame that protects the cables on the connector side. It is used as a handle for easy handling.

This miner works with an energy efficiency of 0.06 j/Gh and has two 12038 fans, one for blowing air and one for exhausting air, and the fan power is 12V 2.8A, the same as its older model.

Whatsminer M21S profitability: Algorithm

The Whatsminer M21s mines using the SHA-256 algorithm can produce up to 40 coins, but the top coins are Bitcoin (BTC) and Bitcoin Cash (BCH). With an average hash rate of 56 Th/s, it consumes 3360W of power.

The board is an Ethernet interface, a TF card slot, an IP button, a reset button, and a status indicator on the controller. What is most impressive, however, is the fact that the MAC address is appended to the control board to make it easier to look up the device’s IP address. This feature is in line with Whatsminer’s promise to produce miners that are easy for everyone to use.

Whatsminer M21S noise level

The noise of this device is quite normal as most miners have a noise level of 60-80 dB. For better understanding, a noise level of 75 dB corresponds to the noise emitted by a vacuum cleaner. The Whatsminer M21s can be used for home mining as the noise level is optimal, but mining farms are more suitable. The noise is normal as the two fans will set for cooling.

Whatsminer M21S profitability

Profitability and return on investment are important criteria when selecting miners to buy. The Whatsminer M21’s profitability depends on the electricity tariffs and costs in each specific area and other market conditions. If the market favors that particular minable coin, miners will achieve high profitability. It is profitable than MicroBT Whatsminer D1 and less profitable than WhatsMiner M32.


MicroBt offers a repair service for any ASIC Bitcoin miners that you have purchased from them that are no longer working. You need to contact email support and open a ticket with the technical team to locate the order.

Have you had a chance to use the above miner? Please share your experience with us by leaving a comment. Your suggestions will appreciate.

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