The 2Pac USB stick Miner for SHA256d based Crypotcoins like Bitcoin, Namecoin, DEM and others delivers an average hash rate of 11-15 GH/s and can be safely boosted up to 25 GH/s when clock rate and voltage will be adjusted. The theoretical max. hash rate is ~ 33 GH/s.
This Miner is equipped with two highly power efficient AntMiner BM1384 ASIC (same chip as on Bitmain’s AntMiner S5).
It enumerates in CGMiner software as an COMPAC-2 which gives command-line frequency control for both ASICs to adjust the hash rate. Moreover the miner is equipped with a fully adjustable voltage regulator that allows a core voltage range of 1.26V to 1.5V without requiring “pencil modding” or soldering skills.
The average power consumption is 0.3W/GH which makes this device currently (as of April 2017) the most powerful Bitcoin Stickminer on the market.
The Miner will be delivered with a quality aluminium heat sink mounted which provides a low thermal resistance and supports natural convection as well as active cooling. When overclocked and/or voltage regulated (more than 100 MHz) we highly recommend active cooling.
The power consumption depends on the clock rate and the set core voltage and varies from 2 W to ~14 W. Usage of an active USB hub is highly recommended to avoid damage on standard USB ports.
This Miner is manufactured and assembled by GekkoScience.com for the EU market.
At this point, unless you steal power from the electrical grid in some weird squat or you have your own hydroelectric plant, home bitcoin mining is a sucker’s game. Sure you can make a little and you definitely help out the bitcoin network by processing the hashes that make up bitcoin transactions, but plugging in your own hardware usually means huge electricity bills and a trickle of BTC so slow that you barely make back your investment. With that in mind, then, I decided to plug in a HexFury 11 gigahash/second USB miner, one of the last powerful USB miners that can actually make you a few dollars a month.
First, let’s understand what this thing is. The HexFury is a USB mining rig with six small ASICs made by a company called Bitfury. The ASICs, in this case, are chips that do one thing – mine bitcoin – and they do it very well. Up until the HexFury, most USB miners of this type could run at 2 GH/s per second or slower, enough to mine a few dollars a year. At this point these older ASICs cost about $12 while this model costs $200. Could you mine with the smaller ASICs? Sure, but you’d essentially be burning money in a tiny bonfire. I ran a collection of three 1 GH/s ASICs and got about $1 a month.
A unit arrived from Asicrunner and I unwrapped the single chip and checked it out. On one side are the six ASICs and on the other side is a large, passive heatsink. It looks like an overgrown thumb drive with exposed innards, which should give owners of inquisitive cats pause. The device requires a 5V USB hub (Belkin makes a few good ones) and a separate fan. I used this Arctic USB fan.
To mine I used a Raspberry Pi with a USB card onto which I installed Minepeon, a free mining platform that supports multiple types of ASIC miners. It is one of the simplest ways to turn your Raspberry Pi into a real mining rig and is very cool. You can learn how to install it onto an SD card here.
To run the chip with Raspberry Pi Minepeon installation I had to install and recompile cgminer 4.3.2, the latest version of a standalone mining app that runs on most platforms. I had to recompile it to work with the current version of Minepeon. Once you’ve put Minepeon on an SD card and booted up your Raspberry Pi, you need to download and compile cgminer for your environment. Here are the commands I used:
ssh -l minepeon (password:peon)
tar xvf cgminer-4.3.2.tar.bz2
./configure --enable-icarus --enable-bitfury
sudo make install
mv cgminer cgminer.hold
ln -s /home/minepeon/cgminer-4.3.2/cgminer cgminer
This should get you the latest version of cgminer.
How does it perform? Well, with the fan pointed directly at it and the hub powered on, I consistently saw 12GH/s. This enough to make about $150 a year at this current difficulty and bitcoin price. This is a screen from Minepeon.
You’ll notice that at that speed we would see about 0.018 BTC per month, or about $10. Given the cost of electricity and the constant rise in the bitcoin mining difficulty rate, this will eventually fall until 11 GH/s is a paltry speed.
Home mining, at this point, is more about the experience of mining than any real money making. While you can make a little money with this, you’re obviously going to have to connect a few of these together and have free electricity to make any sort of dent into the initial $200 investment. This is a speedy and powerful little chip and a real testament to what kind of power you can stick onto a small PCB. As these things catch up with higher-powered units, it’s only a matter of time before we can all make a few BTC a month with something the size of a stick of gum. bitcoind rpc threads.
Майнер криптовалюты Bitfury B8 SHA-256 Miner 50 THs
Another USB-based bitcoin mining device has hit the market.
A company called RedFury, which announced its miner on the Bitcointalk forums, is taking orders for its 2.6GH miner, which is powered by plugging it into a USB port.
The device is basically an ASIC board with a heatsink glued onto it for dissipation. The power consumption of the device is about 2.5 watts. The company is now selling the units for 0.49 BTC, which at a recent CoinDesk Bitcoin Price Index value is around $98 per unit.
"We are aiming for new users who are wanting to get into bitcoin mining, and USB miners offer the cheapest capital investment now," says RedFury's Tiyo Triyanto.
"With about USD $100 you can become a proud owner of Bitcoin ASIC mining hardware."
Triyanto, who says he is one of the largest bitcoin miners in Indonesia where electricity only costs three cents per kilowatt hour, told CoinDesk that RedFury's aim is simply to contribute to the bitcoin community.
"We are merely indie developers who share the same bitcoin passion," he said.
RedFury has posted a production video of the miner's manufacturing process in an Indonesian facility.
It's a look inside what it takes to make a tiny ASIC miner. You can see the surface mounting process, USB soldering assembly and the heatsink assembly, which uses a 3M thermal pad to attach it to the board.
RedFury isn't the only company producing USB bitcoin miners. Asicminer has previously sold its Block Erupter line of USB miners, and CoinDesk's David Gilson previously wrote about using them with Raspberry Pi as the host.
The company's website isn't featuring that particular product, but a USB "Satoshi Stick" is apparently coming soon.
There isn't a website for RedFury, so you'll need to contact the Bitcointalk forum member "oaxaca" if you're interested in purchasing RedFury USB miners.
USPS Priority Shipping to US addresses is included in the 0.49 BTC price. Shipping to anywhere outside the US is possible, but customers must pay shipping charges.
While USB mining gear isn't going to make anyone wealthy, Redfury's Triyanto says that this product might be a good way to get someone started with bitcoin.
"For expert users who are looking for bitcoin related gifts, they can use RedFury USB miner to introduce their friend/family member/colleague about bitcoin and/or bitcoin mining," he said.
"This is why we developed RedFury with such a beautiful aesthetic, we went for the extra mile for it to get the nice red PCB, red anodized heatsink, red LED and even red foam-packaging."
Featured Image: Imgur
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биткоин система цифровой пиринговой наличности.
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