Innosilicon A8 CryptoMaster


Innosilicon A8 CryptoMaster Specifications

  • Hashrate: 160KH/s(+/-8%)
  • Power Consumption: 350W (+/-8%, normal mode, at the wall, with 93% efficiency PSU, 25°C temperature )
  • Chip Type: A8 CryptoMaster ASIC
  • Dimensions: Single Tube, 275 mm(L)*245mm(W)*155mm(H)
  • Net Weight: 5.99KG
  • Operating Temperature: 0°C—85°C (device junction temperature)
  • Network Connection: Ethernet


Innosilicon A8 CryptoMaster


Innosilicon A8 CryptoMaster: Innosilicon is a professional ASIC R&D manufacturer with products covering multiple fields. A8 CryptoMaster miner — Innosilicon’s world class CryptoNight miner has been welcomed and loved by all our customers since it is launched. In response to the demands of our overseas miner enthusiasts, we have decided to open up sales to overseas customers. Welcome everyone to purchase.

The Innosilicon A8 CryptoMaster has been touted as the next best thing in cryptocurrency mining after the Antminer S9, and although my initial impressions were not great I have to say that I may be inclined to buy one at release if they do indeed perform as advertised. After some delay I’m now in possession of one for review. Buy Innosilicon A8 CryptoMaster, where to buy Innosilicon A8 CryptoMaster


While the A8 does look like a low-rent Antminer with subpar materials, its hashrate is nothing to scoff at. It runs with an advertised 1600GH/s @ 1200W or 1333MH/s per chip. That’s pretty good, but is it better than an Antminer?

Comparisons between the two are tricky, because they run with different chips. This makes direct comparisons difficult without adjustments, so I made some simple calculations to adjust for this buy Innosilicon A8 CryptoMaster.

Power Efficiency: Although there isn’t really a way to compare power efficiency purely on their advertised values, we can do some simple math to get a ballpark estimate of how power efficient it is compared to the Antminer.

The A8 consumes 1200W while running at advertised speed, while the S9 only pulls 1372W with its advertised speed of 14TH/s.


The one-way hash function is used for this, with the key size of 2^128. A random string r > 0 and a message m are first hashed together, getting H = h(m || r). Then the new value of H, denoted as a8coin, will be equal to a8coin’ = r – H + a8coin. If r has many zeros, then the difference of two random strings will be very large and it might cause some problems to Bitcoin wallet users. Therefore, in this paper we propose a new way to generate Bitcoin addresses which still uses SHA256 but makes it possible for Bitcoin wallets to distinguish between different Bitcoin addresses with the same prefix.

Using SHA512 hash for Bitcoin address will not be acceptable anymore (the reason of reaching the maximum of 21 million bit coins might be reached earlier than expected) and starting from August 2017 new wallets need to switch to using another one-way hash function, SHA256d. Transaction fee paid by users is calculated based on the block size used by the transactions in each block. Miners are incentivized to include transactions with higher fees, which will result in larger blocks. From number of Txs included within the block, there is a 1/2^32 probability that it might be orphaned.

The latest version of Bitcoin Core wallet takes this into account when estimating transaction fee paid.






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