USB - Bitcoin Mining Setup Guide

[ANN] Bitcoin Miners Overclocking Tutorial: A step by step pdf covering beginners to advanced overclocking using the Block Erupter as example

submitted by hnmZYEvzbkHk to BitcoinMining [link] [comments]

bitcoin scrypt fpga and overclocked block erupters

I recently purchased some overclocked usb block erupters from and just got them today. Mines at 440mhs with no problems just heat and 3W each I noticed they also sell fpgas that mine litecoin
Has anyone else bought from them? How can I deal with the heat problem, they came without heatsinks and probably the next step is to buy some.
thank you all
submitted by btcMumbler to Bitcoin [link] [comments]

[Build Complete] $600 upgrade

So it was about time to do another upgrade. The last full build I did was back in September of 2009 where I got a Phenom II x4 945 @ 3GHz. While it was an amazing chip and I was able to overclock it to 3.4 GHz (this was a non-black edition) it just couldn't keep up with some newer titles like BF4 and Guild Wars 2. I upgraded my GPU to the 7870 XT back in April and with a mild overclock it still does an amazing job. I was able to reuse quite a bit from my old build including RAM, PSU, and Heatsink.
PCPartPicker part list / Price breakdown by merchant / Benchmarks
Type Item Price
CPU AMD FX-8350 4.0GHz 8-Core Processor $199.99 @ Newegg
CPU Cooler Cooler Master Hyper 212 Plus 76.8 CFM Sleeve Bearing CPU Cooler Purchased For $0.00
Motherboard Asus M5A99FX PRO R2.0 ATX AM3+ Motherboard $129.99 @ Newegg
Storage Samsung 840 EVO 250GB 2.5" Solid State Disk $171.99 @ Amazon
Video Card PowerColor Radeon HD 7870 XT 2GB Video Card Purchased For $0.00
Case Corsair Air 540 ATX Desktop Case $129.99 @ Newegg
Power Supply OCZ ModXStream Pro 600W 80+ Certified Semi-Modular ATX Power Supply Purchased For $0.00
Other 2x OCZ Platinum 4GB (2 x 2GB) DDR3 1600 Purchased
Prices include shipping, taxes, and discounts when available. $603.96
Generated by PCPartPicker 2013-11-18 08:01 EST-0500
Crappy cell phone pics
The first thing I noticed was the SSD. Damn does that make the OS fast. I should have gotten one sooner. Everything is snappier from launching apps to bootup. I no longer dread having to reboot my PC. The mobo also posts lightning fast to help reduce bootup times.
The case is great too. So much more room than my CM Storm Scout. With all the case fans going at max speed it was a little bit louder than my previous case but once I enabled the Asus Fan Xpert it slowed them all down so it was much quieter.
"AMD over Intel for gaming? YOU FOOL!" Yeah, well I've always appreciated AMD's performance per dollar. I'm betting that since both next gen consoles have 8-core AMD chips that game developers will really start utilizing extra threads. Being a Software Engineer myself I know how hard multi-threaded programming is but I think the Frostbite engine shows it possible.
Final note, I bought all this with Bitcoin. I did some lite GPU mining back in college and I have a few ASICMiner Block Erupters running. Bitcoin has reached a price where I felt comfortable cashing some in. Plus getting a new Chromebook for the wife helped sell her on the idea.
submitted by spacebob to buildapc [link] [comments]

Hello, shibes! I just started mining! Any good pools I can join?

Today I started mining using my GTX 750 Ti. It's at stock clocks atm, plan to overclock later. It's the FTW one from EVGA, supposed to overclock nicely :) I plan to get a R9 270 or R9 270x soon, for better FPS and more hashes :) I've been mining for, but I'm disappointed at a few things. I don't mind donation fees - it's always nice to do that. The high transaction fees are what gets me. It's 1%, plus the 0.5% I'm donating. I'm using Cudaminer, and according to multipool it is mining LTC, FTC, DOGE, ANC, POT, a bunch of scrypt cryptocurrencies. I know that with the built in Cryptsy feature I could convert them all to bitcoin, but it's constantly switching and focusing my hashes on different scrypt currencies - sometimes multiple at once. I would like to mine just dogecoin with my cpu and gpu, and I plan to get some cheap block erupters for SHA256 currencies... not just bitcoin, don't mess that up.
I'd like to know of some nice dogecoin pools I could mine with... and if possible only dogecoin :)
thanks, sorry for the long post :P
submitted by aricleather to dogecoin [link] [comments]

[FORHIRE] USB Block Erupter overclocking service 334 MH/s to 447 MH/s per USB Block Erupter for the cost of shipping and the cost of parts. No labor costs READ BEFORE REPLYING PLEASE

Hi all, I am Pugano from the bitcoin talk forums. (This is a bit of a feeler post. I want to get an idea of who would be interested in this. Anyway moving on...) I was the one who wrote the tutorial on how to do an easy hardware upgrade to the Block Erupters to make them hit 447 Mh/s. (However, please note, that I am not the one who originally did all the hard work on figuring out how to overclock them.)
- = Tutorial for you if you want to attempt this yourself.
Recently, I have gotten a few PM's on about upgrading Block Erupters for others, so I figured I would post here and offer this as a service. I understand that some of you are still running your Erupters and are looking to get the most Return on Investment (ROI) out of them that you can. Instead of having to buy $300 dollars worth of hardware for all the required tools and parts to upgrade them yourself (soldering kit, etc.), now that I've done the upgrades to my own Block Erupters, I already own said items and I am willing to help you out buy doing the upgrade for the cost of shipping and the cost of components. All I ask in return is that you pay shipping both ways, and pay for the components that go on the Erupter. The cost of the parts needed to upgrade the Block Erupter is typically slightly less than $3.00 USD per Erupter. You would be paying for shipping your Erupter(s) both ways, and for the chip(s) needed to do the upgrade. You would be shipping it to Clarks Summit, PA, 18411, if you want to check the shipping costs. I am doing this mainly because I want to see the Satoshi Dream come true of "One CPU one Vote." Now I will note that if you are the miner with 1 Block Erupter and you want to upgrade to 447 MH/s this will not fix your ROI for the difficulty, but if you need to do a bulk upgrade, it may be worth it for you. I have upgraded 7 of my own Erupters since September 2013 with no issues, each one generating 447 Mh/s. If you would like to have me upgrade your Block Erupters, I will handle each request on a case per case basis and I will price every order individually based on how many upgrades i have to do based on current cost of parts. But I will make sure that you get quality work done and make it as inexpensive for you as I can. This is a donation of my time. I don't expect to make a penny off of this. But i want to see Bitcoin thrive and the only way to do that is by trying to do my part in the community.
The requirements for this service are the following: 1.You must mail me each block erupter sealed preferably in the original case or something close for shipping safety. 2.I must test them for about 10 min to make sure that they are not getting horrid amounts of hardware errors. 3.I must remove the R1 chip, and one of the oscillator's, and replace them with upgraded components. 4.I must test them for about 10 min to make sure they are once again not getting horrid amounts of hardware errors and hitting 447 Mh/s. 5.I must mail back to you, either upgraded, or will let you know they were faulty and sending back originals without upgrade.
I want my turn around time to be about 48 hours or less for mail back. May differ for orders larger than 10 Erupters .
I will not Use your erputers for Mining for profit, and I will ask how I can make this service better. Best of luck to each and every one of you in this wonderful FREE MARKET, whether you choose to follow the tutorial on your own, or allow me to assist you with the upgrade.
Thanks For Reading. Pugano
submitted by Pugano to Jobs4Bitcoins [link] [comments]

New to r/Tokenmining? click here for more in-depth info!

What is EIP:918?

EIP:918 is an Ethereum Improvement Proposal for standardizing mineable token distribution using Proof of Work.
The primary driver behind the standard is to address the very broken ICO model that currently plagues the Ethereum network. Token distribution via the ICO model and it’s derivatives has always been susceptible to illicit behavior by bad actors. New token projects are centralized by nature because a single entity must handle and control all of the initial coins and all of the the raised ICO money. By distributing tokens via an alternative ‘Initial Mining Offering’ (or IMO), the ownership of the token contract no longer belongs with the deployer at all and the deployer is ‘just another user.’ As a result, investor risk exposure utilizing a mined token distribution model is significantly diminished. This standard is intended to be standalone, allowing maximum interoperability with ERC20, ERC721, and future token standards.
The most effective economic side effect of Satoshi Nakamoto’s desire to secure the original Bitcoin network with Proof of Work hash mining was tethering the coin to real computing power, thereby removing centralized actors. Transitioning the responsibility of work back onto individual miners, government organizations have no jurisdiction over the operation of a pure mined token economy. Oversight is removed from an equation whereby miners are providing economic effort in direct exchange of a cryptographic commodity. This facilitates decentralized distribution and establishes all involved parties as stakeholders. The ERC918 standard allows projects to be funded through decentralized computing power instead of centralized, direct-fiat conversion.
The Ethereum blockchain in its current state exists as a thriving ecosystem which allows any individual to store immutable records in a permission-less, invulnerable and transparent manner. Recently, there have been proposals to mitigate some initial ICO investment risks through the introduction of the DAICO model that relies on timed and automated value transfers via the smart contract tapping mechanism. However, this does not align a token smart contract as a non-security and still has the potential to put investors at risk if not implemented carefully, relying on centralized actors to be fair and community intended. Allowing users of the network direct access to tokens by performing computations as a proof of work supplies allows any smart contract to distribute a token in a safe and controlled manner similar to the release of a commodity.
As of 2017, all Ethereum token distribution methods were flawed and susceptible to Sybil attacks. A Sybil attack is a form of computer security attack where one person pretends to be many people with multiple computer accounts in order to manipulate a system in a malicious way. ICOs and airdrops are highly susceptible to these type of attacks so there is no way to verify that all ERC20 tokens distributed by the deployer were doled out fairly or unfairly. Proof of Work distribution is resistant to Sybil attacks. This means that ERC918 tokens are among the first trustless Ethereum tokens in the world. The distribution of ERC918 tokens is fair because they are allotted via an open, decentralized mathematical algorithm (that anyone can view on the mainnet blockchain) and not a centralized human monarchy.
ERC918’s first incarnation (and inspiration) was the 0xBitcoin project that launched in early 2018. Since then, several projects have realized the standard in innovative and creative ways. Catether (0xCATE) erupted early and additionally mints payback tokens during transfer operations to offset gas costs. 0xGold and 0xLitecoin each implement the first on-chain merge-mining with 0xBitcoin and the Mineable Gem project extends the standard onto a non-fungible collectible artifacts, whereby each gem has a unique mining difficulty. The Mineable project is a newer initiative that provides users with the ability to create mineable ERC20 tokens on-chain without writing a line of code and includes a virtualized hashing artifact market that allows miners to purchase on-chain vGPUs to improve mining difficulty and rewards. (written by jlogelin) ​


0xBitcoin is a Smart Contract on the Ethereum network, and the concept of Token Mining is patterned after Bitcoin's distribution. Rather than solving 'blocks', work is issued by the contract, which also maintains a Difficulty which goes up or down depending on how often a Reward is issued. Miners can put their hardware to work to claim these rewards, in concert with specialized software, working either by themselves or together as a Pool. The total lifetime supply of 0xBitcoin is 21,000,000 tokens and rewards will repeatedly halve over time.
The 0xBitcoin contract was deployed by Infernal_Toast at Ethereum address: 0xb6ed7644c69416d67b522e20bc294a9a9b405b31
0xBitcoin's smart contract, running on the Ethereum network, maintains a changing "Challenge" (that is generated from the previous Ethereum block hash) and an adjusting Difficulty Target. Like traditional mining, the miners use the SoliditySHA3 algorithm to solve for a Nonce value that, when hashed alongside the current Challenge and their Minting Ethereum Address, is less-than-or-equal-to the current Difficulty Target. Once a miner finds a solution that satisfies the requirements, they can submit it into the contract (calling the Mint() function). This is most often done through a mining pool. The Ethereum address that submits a valid solution first is sent the 50 0xBTC Reward.
(In the case of Pools, valid solutions that do not satisfy the full difficulty specified by the 0xBitcoin contract, but that DO satisfy the Pool's specified Minimum Share Difficulty, get a 'share'. When one of the Miners on that Pool finds a "Full" solution, the number of shares each miner's address has submitted is used to calculate how much of the 50 0xBTC reward they will get. After a Reward is issued, the Challenge changes.
A Retarget happens every 1024 rewards. In short, the Contract tries to target an Average Reward Time of about 60 times the Ethereum block time. So (at the time of this writing):
~13.9 seconds \* 60 = 13.9 minutes
If the average Reward Time is longer than that, the difficulty will decrease. If it's shorter, it will increase. How much longer or shorter it was affects the magnitude with which the difficulty will rise/drop, to a maximum of 50%. * Click Here to visit the stats page~ ( to see recent stats and block times, feel free to ask questions about it if you need help understanding it.


Presently, 0xBitcoin and "Alt Tokens" can be mined on GPUs, CPUs, IGPs (on-CPU graphics) and certain FPGAs. The most recommended hardware is nVidia graphics cards for their efficiency, ubiquity and relatively low cost. As general rules, the more cores and the higher core frequency (clock) you can get, the more Tokens you will earn!
Mining on nVidia cards:
Mining on AMD cards:
Mining on IGPs (e.g. AMD Radeon and Intel HD Graphics):
Clocks and Power Levels:


For the most up-to-date version info, download links, thread links and author contact information, please see this thread: Keep up to date for the latest speed, stability and feature enhancements!
COSMiC Miner by LtTofu:
SoliditySha3Miner by Amano7:
AIOMiner All-In-One GPU Miner:
TokenMiner by MVis (Mining-Visualizer):
"Nabiki"/2.10.4 by Azlehria:
~Older Miners: Older and possibly-unsupported miner versions can be found at the above link for historical purposes and specific applications- including the original NodeJS CPU miner by Infernal Toast/Zegordo, the '1000x' NodeJS/C++ hybrid version of 0xBitcoin-Miner and Mikers' enhanced CUDA builds.


If you have any trouble, the friendly and helpful 0xBitcoin community will be happy to help you out. Discord has kind of become 0xBTC's community hub, you can get answers the fastest from devs and helpful community members. Or message one of the community members on reddit listed below.
submitted by GeoffedUP to Tokenmining [link] [comments]

How often does mining pay out?

I just started mining with a usb block erupter a couple days ago. I'm using bfgminer with an eclipse mining pool. I don't expect much, but I'm wondering when to expect my first payout.
In case anyone's interested - my rig:
Raspberry Pi running it to keep electricity costs down.
I'm waiting on 3 of these 2GH usb's:
submitted by Brettc286 to Bitcoin [link] [comments]

Block erupter issue

I have looked over google for some help but im obviously not looking in the correct places because I did not see what i need. Hopefully someone here can point me in the right direction. Here is whats going on. I started off with 1 asic block erupter (ASICMiner Block Erupter USB 330MH/s Sapphire Miner) and everything was going fine. i added another one to the setup and everything was still going fine. (this is all being done on USB ports that are on the back of my PC, no USB hub, yet) I then aquired an antminer (BITMAIN ANTMINER U2 2Gh/s USB Bitcoin ASIC Miner. Overclockable) and plugged it into my PC as well. I am using BFGminer 3.10.0 currently and everything was running fine. all 3 miners were mining. I went ahead and ordered a usb hub because i figured if i was going to keep adding miners that my computer would not be a good place to put them all. well a day before the hub got here, i noticed that one of the miners (the saphire one) was not mining. i looked at my device manager and only saw 2 of them. so i rebooted, messed around with some different ports but nothing made that one work. i figured it was broken for whatever reason and assumed it was because it wasnt suppose to be on my mother board. thing is, it works on another PC. so i waited for the hub to come in to see if it would work on there but it still does not. Im thinking its a driver issue since its not showing up on this computer but it will on another. Any idea or suggestion on how to get my current PC (windows 8.0) to run it? Should i try a different version of bfgminer, or maybe cgminer? im fairly new to all this so i dont really know where to go with it.
submitted by linkevolve to BitcoinMining [link] [comments]

Mining Instructions Made Simple

© Author - Henry - 11 April 2014. All rights reserved.
If you are interested in mining crypto currencies, here are the settings for bfgminer (3.10.0), cgminer (3.7.2), cudaminer (2013-12-01), and cpuminer (2.3.2) for Windows OS. Of course, these settings are for pool mining.
Steps: • Download and Install Wallet - Bitcoin, litecoin, dogecoin, peercoin etc. on your regular PC. • Encrypt and backup Wallet - get in the habit of backing up your wallet. • Join a mining pool of your choice. • Create pool worker at your mining pool site. • Acquire or build mining machine - pay attention to specs, power supply, graphics card etc. • Download and Install mining software - bfgminer, cgminer, etc. • Configure your mining worker - See detailed configuration below. • Mine away.
It's always easier to do the configurations below in a batch file because you could then create a shortcut for them in your startup folder. However, here are both the command line entries and the batch file entries. The timeout instruction in the batch file is used to delay the program for a number of seconds. Therefore, you can vary the time to what suits you or leave it out all together. Remember to replace the personal information portion of the commands.
Cgminer configuration - Scrypt mining dogecoin with fast-pool pool (GPU mining)
cgminer --scrypt -o stratum+tcp:// -u mloverboyu.1 -p x --thread-concurrency 8192 -I 13 -g 1 -w 256 • You may vary threaded-concurrency and -I (intensity) depending on your hardware.
Batch File:
@echo off timeout /t 240 setx GPU_MAX_ALLOC_PERCENT 100 setx GPU_USE_SYNC_OBJECTS 1 cd "c:\users\harry\desktop\cgminer-3.7.2-windows" cgminer --scrypt -o stratum+tcp:// -u mloverboyu.1 -p x --thread-concurrency 8192 -I 13 -g 1 -w 256
Cpuminer configuration - Scrypt mining dogecoin with dogepool pool (CPU mining)
minerd.exe --algo=scrypt --url=stratum+tcp:// --userpass=mloverboyu.1:x --threads=8 • The number of threads equals the number of cores the processor has.
Batch File:
@echo off timeout /t 180 cd "c:\users\harry\desktop\pooler-cpuminer-2.3.3-win64" minerd.exe --algo=scrypt --url=stratum+tcp:// --userpass=mloverboyu.1:x --threads=8
Bfgminer configuration - SHA256 mining bitcoin with btcguild pool (ASIC - Block Erupters)
Using ASICS require the Download and Installation of CP210x_VCP_Windows program. This program assigns COM ports to each device. You then need to use the assigned COM ports to form part of your configuration as shown below. You may also need to edit each COM port under device management and change the bit per second rate to match 115200 through Properties - Port Settings.
bfgminer.exe -o -u mloverboyu_1 -p 123 --icarus-options 115200:1:1 --icarus-timing 3.0=100 -S erupter:\.\COM3 -S erupter:\.\COM4 -S erupter:\.\COM5 -S erupter:\.\COM6 -S erupter:\.\COM7 -S erupter:\.\COM8 -S erupter:\.\COM9 -S erupter:\.\COM11 -S erupter:\.\COM12 -S erupter:\.\COM13
Batch File:
@echo off timeout /t 300 cd "c:\users\harry\desktop\bfgminer-3.10.0-win64" bfgminer.exe -o -u mloverboyu_1 -p 123 --icarus-options 115200:1:1 --icarus-timing 3.0=100 -S erupter:\.\COM3 -S erupter:\.\COM4 -S erupter:\.\COM5 -S erupter:\.\COM6 -S erupter:\.\COM7 -S erupter:\.\COM8 -S erupter:\.\COM9 -S erupter:\.\COM11 -S erupter:\.\COM12 -S erupter:\.\COM13
Bfgminer configuration - SHA256 mining bitcoin with btcguild pool (ASIC - Antminer U1)
The specs for overclocking these devices are: 1.6G=x0781 1.8G=x0881 2.0G=x0981 2.2G=x0A81
bfgminer.exe -o -u mloverboyu_1 -p 123 --icarus-options 115200:2:2 --icarus-timing 3.0=100 -S antminer:all --set-device antminer:clock=x0981
Batch File:
@echo off timeout /t 300 cd "c:\users\harry\desktop\bfgminer-3.10.0-win64" bfgminer.exe -o -u mloverboyu_1 -p 123 --icarus-options 115200:2:2 --icarus-timing 3.0=100 -S antminer:all --set-device antminer:clock=x0981
Bfgminer configuration - SHA256 mining peercoin with ecoining pool (ASIC - Block Erupters and Antminer U1 used together)
bfgminer.exe -o stratum+tcp:// -u mloverboyu.1 -p x --icarus-options 115200:2:2 --icarus-timing 3.0=100 -S erupter:\.\COM3 -S erupter:\.\COM4 -S erupter:\.\COM5 -S erupter:\.\COM6 -S erupter:\.\COM7 -S erupter:\.\COM8 -S erupter:\.\COM9 -S erupter:\.\COM10 -S erupter:\.\COM11 -S erupter:\.\COM12 -S erupter:\.\COM13 -S antminer:all --set-device antminer:clocl=x0981
Batch File:
@echo off timeout /t 300 cd "c:\users\harry\desktop\bfgminer-3.10.0-win64" bfgminer.exe -o stratum+tcp:// -u mloverboyu.1 -p x --icarus-options 115200:2:2 --icarus-timing 3.0=100 -S erupter:\.\COM3 -S erupter:\.\COM4 -S erupter:\.\COM5 -S erupter:\.\COM6 -S erupter:\.\COM7 -S erupter:\.\COM8 -S erupter:\.\COM9 -S erupter:\.\COM10 -S erupter:\.\COM11 -S erupter:\.\COM12 -S erupter:\.\COM13 -S antminer:all --set-device antminer:clocl=x0981
Cudaminer configuration - Scrypt mining litecoin with wemineltc pool (GPU - NVIDIA)
cudaminer.exe -o stratum+tcp:// -O mloverboyu.1:x
Batch File:
@echo off timeout /t 25 cd\cudaminer64 cudaminer.exe -o stratum+tcp:// -O mloverboyu.1:x
Of course, many other choices exist but you get the picture and these simple steps are more than a basic start. No one else has done it and I'm doing it here for free. So if you wish you may donate to any one of the following addresses. Big thank you.
Bitcoin 13aGKge6HiEd3NV6iaguP79RnKK653JxC9 Dogecoin DQBgjx7sJtLbQqogsEDpTsRJCv2eFCFX9d Litecoin LcdrZdxieYykwn3xUHHAs8NFb8WkyhT8pk Namecoin N7TepHhY5vkgE5zx1ch2d7kPE1hnZfmXGM Peercoin PXRkNKSbF8vHiSkRGoFp2hhNsvjXgXkVZL
submitted by henryb2000 to Bitcoin [link] [comments]

Cryptocurrency Mining Difficulty Explained - Mining Difficulty And Analysis Bitcoin USB Block Erupter Installation and Mining in Windows firefly4322 - YouTube [EASY] How To Mine Bitcoin Using ASIC USB Block Erupters and BitMinter Litecoin Mining Profitable With USB Miner in 2018?

That said. Here is how I got my block erupter overclocked to 56o MHz briefly before it died. Lets start off first with a simple overview of the board Click for larger size The heart and soul of your Block Erupter. Please note: putting a heat sink on top of this chip will have little if any effect as the heat side of the chip is soldered to the Overclocking the Block Erupter USB bitcoin miner Moogle shares results of his exploratory hacking with the ASICMiner Block Erupter, using an external clock signal and variable voltage – I used a 10K ohm pot to adjust the core voltage with a volt meter on the pin I soldered to the main asic core voltage line. Step 3 - Join a Bitcoin Mining Pool. Once you're ready to mine bitcoins then we recommend joining a Bitcoin mining pool. Bitcoin mining pools are groups of Bitcoin miners working together to solve a block and share in its rewards. Without a Bitcoin mining pool, you might mine bitcoins for over a year and never earn any bitcoins. ASICMiner Block Erupter USB 330MH/s Sapphire Miner. The Sapphire Block Erupters were the first Bitcoin USB miners. They have 330 MH/s of hash power which would net you less than $0.01 per month. It may be a good choice just to see how mining works, but like with most USB miners: do not expect to turn a profit. GekkoScience Compac USB Stick Picture 1, the component side of the Block Erupter. That’s the orientation we’ll use throughout the tutorial. Picture 1: Block Erupter closeup . The Block Erupter is one of the easiest electronics devices to overclock, because it’s a relatively simple device, is totally exposed and it wasn’t in any way designed to be ‘anti

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Cryptocurrency Mining Difficulty Explained - Mining Difficulty And Analysis

Find out how to easily mine Bitcoin using ASIC USB Block Erupters and BitMinter. Sapphire Block Erupter Bitcoin USB Mining Sticks are Sold on Amazon at http:... [EASY] How To Mine Bitcoin Using ASIC USB Block Erupters and BitMinter - Duration: 3:56. Daniel St.Pierre 9,104 views How to Set Up a Bitcoin Mining Rig w/ BITMAIN ANTMINER U2 & CGMiner ... Sapphire Block Erupter - USB Bitcoin Miner 330 Mhash @ 2,5 W - Duration: 2:25. SwiftDK 47,953 views. 2:25. DIY Bitcoin ... Product Description : ASICMiner 49 Port USB Hub From the makers for USB Block Erupters and Block Erupter blades comes this 49-port USB hub. Specially designed to support USB Erupters. Genesis Mining was founded in 2013 Butterfly labs, bitcoin block, block erupter, difficulty, asic miner, Bitcoin, how much will bitcoin difficulty increase, bitcoin mining, what is bitcoin ...

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