Innosilicon A11 2000MH@2.5Kw 8GB Memory Not in Stock
In last 6 months, there are around 10~20 new models of ASIC (actually FPGA) based ETH miners approaching the market, but only a few models like Cow E1/E2 really came to be in stock, and here is a general summary.
A. These miners have much higher computing power than the classic VGA miners - like 5~6 times of power-efficiency of VGA miners, compared with the models in my last post - 1 VGA miner typically is 220MH@1.1Kw.
B. Because the real-time margin of these FPGA miners are too high, the owners do not really want to sell them, instead, they want to mine themselves at least right now, so it's very difficult to find reliable sources by the end of 2021.
C. Mr. Vitaly Buterin and his team - the Founder of ETH - are aware of this trend, and they are working on upgrading the ETH core software to prevent such BTC-style concentration trend of computing power, so these new ASIC/FPGA miners might immediately lose value in this case. This is also the reason why the big vendors and miners are reluctant to make a lot of noise now.
D. The DAG file of ETH right now (2021 November) is 4GB, and shall grow 500MB every half year, so the memory of the new miners determines the physical longevity of new miners - in short, every 1 GB above 4GB would secure 1 year longevity, if the miner does not allow further modification (adding more memory).
E. The latest price of available ASIC/FPGA miners is around US$30 per MH. When you are interested in such series, again please always check 3 key factors - [shutting price of ETH], [in stock or not], and [memory size]. If these 3 factors are not correct, do not go.