Bitmain Antminer: Review and Features 2019

Is it possible to mine Bitcoin from home simply by using a PC connected to the Net? To do this, a new family of specific hardware has been developed for undermine Bitcoin.

When the famous cryptocurrency, the inventor, was born Satoshi suggested using the CPU of their PCs for undermine Bitcoin.

Subsequently, the same miners began to use the graphics cards of their computers as they provided more computing power and, finally, the hardware ASICs, which produce an enormous amount of computing power with a low electricity consumption.

Among the most well-known companies specialized in the production of ASIC hardware deserve mention: the Chinese Bitmain, which produces Antminer; Israeli Spondoolies Tech e BitFury.

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Hardware ASICs: what are the main features to evaluate?

Before buying a ASIC hardware, it is essential to evaluate the following features:

  • Efficiency - ratio of energy used and converted into Bitcoins,
  • Hash Rate - how many hashes per second can be produced,
  • Price - the cheaper it is, the less it is produced.

In addition to the features, it is necessary to obtain the cooling fans, which allow to cool the hardware system which tends to overheat very easily and thepower pack, which allows you to channel and use electricity efficiently.

Antminer S9 Bitmain: Review

Let's find out what are the characteristics, the pros, the cons and the price of theAntminer S9 Bitmain.

Antminer S9 Bitmain: Features

As part of the "ASIC mining rig”, The Antminer S9 Bitmain has an extraction rate of 14 TH / s.

The following mathematical formula allows you to calculate how many Bitcoins you can create in a given time interval:

Bitcoin / day = (Hash / sec * 3600 * 24 * 25) / (2 ^ 32 * difficulty)

Basically, it is possible to undermine approximately 1 Bitcoins a month.

Le peculiar characteristics of the Antminer S9 Bitmain are attributable to the following:

  1. Hash speed: 13,5TH / s ± 5%
  2. Energy consumption: 1300 W + 12% (on the wall, with APW3, efficiency 93%, room temperature 25 ° C)
  3. Energy efficiency: 0,1 J / GH + 12% (wall mounted, with APW3 93% efficiency, room temperature 25 ° C)
  4. Rated voltage: 11.60 ~ 13.00 V.
  5. Amount of chips per unit: 189 x BM1387
  6. Dimensions: 350mm (L) * 135mm (W) * 158mm (H)
  7. Cooling: 2 12038 fans
  8. Operating temperature: from 0 ° C to 40 ° C
  9. Network connection: Ethernet
  10. Default frequency: 550 M +

Antminer S9 Bitmain: Pros and cons

Pro:

  • The highest hashrate available at ~ 14 TH / s
  • Very efficient at ~ 0,1 Joule for GH / s

The good news is that the existing power supplies, at least those of sufficient power, are fully compatible with the S9.

Recommended for use are:

  • The Bitcoin Miner APU-12 PSU from 1600 Watt AntMiner, which costs just under $ 200 on Amazon,
  • The EVGA SuperNOVA GPU from 1300 Watt GPU, which costs around $ 170 on Amazon. Note that the EVGA power supply from 1600 Watt is significantly more expensive, around $ 115, than the equivalent AntMiner offer.

Against:

  • High cost at ~ $ 2100 (USD)
  • Power supply sold separately (adding other $ 170 - $ 200).

Antminer S9 Bitmain: Energy consumption

The state-of-the-art production process is what makes the Antminer S9 the most energy efficient extraction device.

Use only 0,1 Joule for Gigahash, making it about 2,5 times more efficient than the S7 Antminer.

Il total energy consumption of the device is around 1350 watts, although this figure is subject to around 7% of the variance. The S9 consumes about 300 W more than the S7.

Antminer S9 Bitmain: Setup

In addition to the power supply, the S9 is a stand-alone unit and does not require any connection to other PCs to interface with other Bitcoin nodes.

The integrated web management portal allows a simplified installation and maintenance process.

Antminer S9 Bitmain: Temperature

The S9 is air-cooled and works reliably in any well-ventilated space, regardless of whether one or more units are stored in a vacant room.

Antminer S9 Bitmain: is it worth it?

Based on the calculated data and results, yes!

Il Bitcoin halving (expected for May 20, 2020) could result in a higher Bitcoin price and reduced competition, thereby increasing profitability.

Ultimately, the S9 is a very good hardware although quite expensive. It is likely to remain profitable for much longer than previous generations of ASIC Miners.