Bitmain Antminer S21+

Bitmain Antminer S21+

Bitmain Antminer S21 + is the latest model in the new generation of Bitcoin miners from Bitmain.

Technical parameters of the Antminer S21+

Cooling is provided by two fans on the front side, which draw cold air into the miner, and two fans on the back side, which take the now warm air away. The manufacturer Bitmain gives a 12-month warranty for the miner. The package includes the Antminer S21+; an Ethernet cable to connect to the network; power supply cable and a filter grid to prevent dust from settling on the mining chips, thus extending its life. The dimensions and weight of the device are - 45 x 21.9 x 29.3 cm (21,5 kg).

Soundproofing of the miner

You can buy a Silent box that can be added to the miner, which can reduce the noise level from 75 dB to a level where you can operate the miner from the comfort of your home without any problems. The turbine will provide more optimal cooling than standard fans, reducing electricity consumption and extending the life of the miner.

In addition, the box comes with a set of extensions and tubes that allow you to exhaust warm air directly from the miner and use the residual heat to heat your home. This solution gives home cryptocurrency mining a whole new dimension, saving you hundreds of Euros a year in heating costs. Another advantage is the smart app that you can use to control the basic settings of the box. Of course, there are also chips that shut down the miner in case of overheating or fan failure.

Recommended mining pools

For Bitcoin mining we recommend Nicehash.com, the Czech pool Braiins.com or Antpool.com. How to get started and set up for the first time? Find out everything you need to know in the mining tab.

Miner hosting

Mining cryptocurrencies in your home makes sense mainly when you have access to cheap electricity (e.g. from surplus energy from a photovoltaic plant) or when mining along with using the surplus heat to heat your home. In case you do not have access to a source of cheap electricity, we recommend using hosting in our data centre abroad. The cost of electricity is only $0.09/kWh, so with us you can save thousands of Euros a year on your mining operation. We will take care of the purchase, shipping, clearance, initial start-up and setup, and regular maintenance of your miner. So the only thing you have to do is choosing your miner.

Bitcoin halving

The next halving (50% reduction in the block reward, for BTC once per four years) is scheduled for April 2028.