2017 mining machinery
Now buy 120g mining machine, bitcoin at the current price, can do back to the original, it's very good. Bitcoin (bitcoin: bitcoin) is a kind of network virtual currency, which can buy real-life goods. It is characterized by decentralization, anonymity, and can only be used in the digital world. It does not belong to any country or financial institution, and is not subject to geographical restrictions. It can be exchanged anywhere in the world. Therefore, it is used as a money laundering tool by some criminals
expansion:
1. In 2013, the U.S. government recognized the legal status of bitcoin, which led to a sharp rise in the price of bitcoin. In China, on November 19, 2013, a bitcoin was equivalent to 6989 yuan. On January 7, 2014, Taobao announced that it would ban the sale of Internet virtual currencies such as bitcoin and lightcoin from January 14. On February 26, 2014, Democratic Senator Joe Manchin of West Virginia issued an open letter to a number of regulatory authorities of the federal government of the United States, hoping that relevant institutions would pay attention to the status quo of bitcoin encouraging illegal activities and disrupting the financial order, and demanded that actions be taken as soon as possible to completely ban the electronic currency
2. On January 11, 2017, the Shanghai headquarters of the people's Bank of China and the Shanghai financial office carried out on-site inspection of bitcoin China, focusing on whether the enterprise carried out credit, payment, exchange and other related businesses without permission or license; Implementation of anti money laundering system; Fund security risks, etc. On January 12, 2017, the business management department of the people's Bank of China also entered the trading platforms such as "fire coin net" and "currency bank" in Beijing
I can't find one in a day. Now bitcoin is not what it used to be. If you think the answer has solved your problem, please adopt it. If you have any questions, please continue to ask. I hope my answer can help you. One machine a day is about 0.03, 40 machines a month is 0.03 * 40 * 30 = 36, of course, 40 mining machines also need 400000, which is not included in the electricity bill. According to the current difficulty calculation, about 0.01584 bitcoins can be g in a day. Of course, the final result of each mine is different, but it will be very close to one day. Now bitcoin is not what it used to be. Moreover, bitcoin is now banned by more and more countries. Bitcoin can't be traded in the mainland today. Now the price of ant S9 has gone up to the sky. It's eighteen thousand. It's not recommended to buy in stock. It's too long to go back to this cycle. You can consider other options
1. If all the wires have been connected, we can turn on a connected PC at this time and turn on the network neighborhood property
2. Open the local connection attribute; 3 and then open the TCP / IP protocol properties
The most advanced bitcoin mining machine, one to two years to dig out a bitcoin, bitcoin mining is now too difficult. If you want to dig, you can dig ether currency. Now it is steadily appreciating every day. According to the current development trend, it will be able to recover its capital in about seven months, and then it will be profitable< br />
Although the price of bitcoin has suffered a sharp drop before the Spring Festival, there are still some people who are obsessed with "mining". Therefore, mining equipment has become a hot spot, and some people have made a fortune
analysts from Bernstein, a well-known US investment bank, estimate that in 2017, the operating profit of a Chinese start-up company named bitmain in China may reach US $3 billion (about RMB 19 billion) to US $4 billion (about RMB 25.3 billion), which is equivalent to that of chip giant NVIDIA
However, it took bitmainland only four years to achieve such a high profit in one year, while NVIDIA spent 24 yearsbitmainland's operating profit may exceed US $3 billion
according to the conservative expectations of 75% gross profit margin and 65% operating profit margin, bitmainland's operating profit in 2017 is US $3 billion to US $4 billion, while NVIDIA's operating profit in the same period is US $3 billion. In a report released on Wednesday, Bernstein analysts said it took bitmainland only four years to achieve this goal, while NVIDIA took 24 years
According to Bernstein's report, each of the antminer bitcoin mining devices currently sold by bitmainland is worth hundreds to thousands of dollars. In addition, the company operates "mining pools" that allow participants to collaborate on bitcoin mining to rece costs. Bernstein estimates that bitmainland has 70% to 80% market share in bitcoin miners and ASICs 
according to the daily economic news, the ethash algorithm currently used by Ethernet is based on the demand of graphics chip, which is suitable for PC mining, and the mining machine is not good at it. The market expects that bitmainland will soon launch a new mining machine with low energy consumption and high efficiency. A professional mining machine can be equivalent to several 8-graphics card mining machines. After the official launch, it is bound to impact the original PC mining market with graphics chips. At that time, because of "mining" and soaring chip prices are also expected to return to rationality
Mitch Steves, an analyst at RBC Capital, believes that the price of Ethernet currency has skyrocketed from $10 in early 2017 to $1000 now, and the possibility of exclusive mining chips is much higher than a year ago. Steves also pointed out that if bitmainland really sells chips dedicated to Ethernet coins, the mining efficiency will be far better than that of graphics chips, and at that time, it will take away the business of NVIDIA and AMD
according to the daily economic news, NVIDIA's financial report for the fourth quarter of 2017 released in early February found that the company's data center, including the sales of graphics processing units (GPU and graphics card), had an operating revenue of US $606 million in the fourth quarter, making it the second largest revenue source of NVIDIA. The chief financial officer of NVIDIA also mentioned that in terms of the overall demand for NVIDIA procts, the contribution of digital money market is difficult to quantify, but I believe the percentage contribution in the fourth quarter is higher than that in the previous quarter
bitcoin will be released on the Internet regularly to mine. To put it bluntly, it is the process that people use computer hardware to calculate the location of bitcoin and obtain it
mining is definitely the first professional mining machine. Many new children's shoes will choose to mine with graphics card. However, mining with graphics card is just like doing a professional job with "magic oil", but the efficiency is certainly not high. To dig bitcoin, we should pay attention to the following points: first, computing power (i.e. mining speed), second, power consumption, and third, stable performance. Computing power, bitcoin mining is faster than problem-solving speed, so it is self-evident that speed is more important; Power consumption is directly related to efficiency, that is, the issue of cost expenditure; The stability of performance mainly depends on the stability of calculation force when the working frequency is constant. Just think about it, no one wants the miner to lose its computing power every so often, or even break down. After all, it's all money ~
the general computing power of the graphics card is a few gigabytes, while the professional miner chip is as high as several thousand gigabytes. Take bm1387, the chip with the lowest power consumption in the world, as an example, the S9's computing power is as high as 14T, the power consumption on the wall is only 1400W, and the rated computing power reaches 13.5 Th / s ± 1 J / GH + 12% (wall, AC / DC 93% efficiency, 25 ° Rated voltage: 11.6 ~ 13.0v, in addition, in the case of non independent power supply, three power calculation boards can be connected to different power supply respectively, but each power calculation board can not be connected to multiple power supply, and ensure that the power calculation board is finally powered on
among the mining machines, ant mining machine is my favorite. At the same time, based on the average investment cost of bitcoin in the early stage, ant S9 can basically recover the capital in about five months, and the income in the later stage is immeasurable.