Antminer S9 specifications:
Thanks to the use of new technologies, Antminer S9 hashing speed is almost three times faster than its predecessors. Differences in the hash rate of different S9 batches are due to the different values of the preset frequency. At the maximum speed, the temperature of Antminer S9 may increase up to 90 degrees Celsius, to reduce the percentage of failures the manufacturer began to lower the default frequency. But if you put on the device modern Antminer s9 firmware from vnish, you will get the maximum result.
Antminer S9 is suitable for mining – Bitcoin, BitcoinCash and other coins on the SHA-256 algorithm. S9 is one of the most reliable and stable ASICs on the market. Antminer S9i is virtually no different from AntMiner S9j, it is a modified version of the usual s9 with an increased hash rate and lower power consumption, especially when using the firmware Vnish.
However, at the moment the device is obsolete, although it is still cost-effective. The latest ASIC for the SHA-256 algorithm from Bitman Antminer S19 Pro speeds up to 110 Th/s at 3500W. Its energy efficiency is 29.5±%5 J/TH, which is several times higher than the S9. This mining machine has chips made on 7nm process with modified architecture and brand new APW12 power supplies for high stability. But with Vnish firmware you can get the maximum efficiency, as you can see in the comparison table.
Pros and cons of Antminer S9:
If we talk about the pros of the S9, first of all it is worth highlighting the following points:
– When using the firmware from Vnish is still relevant (even despite the greatly increased complexity of mining bitcoin + a huge drop in the cryptocurrency rate).
– Decent power, considering the ratio of hash rate, power consumption and cost of the device.
– Bitcoin mining – SHA-256 algorithm is still considered the most promising and profitable due to bitcoin status and weight.
– Significantly dropped the cost of the asic, compared to 2017 and 2018, so the device can be found at a bargain price.
Antminer S9 profitability:
To see how much ASIC brings, you can use the online calculator. According to calculations of the service WhatToMine, for Bitmain Antminer S9 13.5 Th yield per day, on the most profitable coin DGB-SHA(DGB) is $2.90, and on BTC $2.50, but the rate is constantly changing. Using Antminer S9, the calculator must be turned on every day. However, this applies to all miners, regardless of the mining method.
With a socket price of $0.05/kWh you will get approximately $87 per month, and if the exchange rate goes up, you will get more. The model with a hash rate of 19 Th/s will have a slightly higher income, about $150 per month. But the main thing is that ASIC-miner must work stably with Vnish firmware, and then all expenses will be repaid with pleasure.
Antminer S9 to sum it up:
If you replace the standard fans that make unrealistically loud noise and install the latest Vnish firmware, Antminer S9 can be considered as one of the best ASIC-mainers for home use.