Topic: I really want help for choose a USB bitcoin miner (Read 1247 times)

And depending on what setup is you really can learn a lot off of them.  Most modern miners are plug and chug, you enter numbers and it works.  With stick miners you have a option of using a RPI and getting to use a variant of Linux.

If you install the mining software and run it by command line and tweak it up and down.  I think you will learn far more about mining then buying one you enter it into and it just goes.  But as said above stick miners are to high to ever make a profit.

an USB miner good for just passing time and gaining some mining experience. you won't get enough profit with an USB miner. better that don't invest your money on it.

The closest to a profitable USB-based Bitcoin miner would be Sidehack's "Gekko" stick - and THAT stick has never been profitable enough to achieve ROI unless you have free electric.

 It's probably the best USB-based Bitcoin miner in existance, though - and a TON more efficient than any GPU is at Bitcoin mining - I suspect it hashes more than ANY GPU can manage while just sipping at power....


 GPUs for altcoin mining belongs over there -------------------------> "Altcoin Mining" forum - and yes, there are SOME coins that are profitable for GPU mining if your electric isn't way expen$ive, but none that look like VERY good long-term ROI bets. Most of us that are profiting off Ethereum either already had older GPU rigs we could repurpose, got into it VERY early, or have other plans for the hardware once Ethereum becomes unprofitable.

then it's better if he do not start at all unless he is sitting on a big ass green energy platform

bitcoin mining is not casual since years already, you need to invest big at each wave, gpu cna still earn you bitcoin indirectly, it's the same in the end

USB miners really don't have much as far as cooling.  I mean I put some fan's around my compacs and U3's (when I had U3's) but with just stick miners a cheap cpu fan can do it.  Some even use usb fans.  But you are right they will not ROI.

Some claim GPU is back.  I personally don't see a solid long term profit that is guaranteed I see some as a bubble on ETH.   I personally did not invest in GPU machines right now.   Just is hard to ROI on them your counting on 1 coin a awful lot that could turn into pump/dump as so many have done.

Since it's in the bitcoin discussion topic, i'd rather say he should start with bigger ASIC (avalon6, antminer S7), since a GPU won't help you much in bitcoin mining.
Altcoin mining is something completely different. With a couple good GPU's you can still make some profit mining ALT's if you know what you're doing

You should either start to mine with lots of GPU's or just dont start at all.
USB Miners are useless

USB miners are not worth it. Trust me. Even other users in this forum will say that.
But if you really are persistent, you could try HexFury or Block Erupter.

i just know about fury usb miner,its not bad for mine bitcoin,but i think will not effective if you used just one or two usb,and if you use so many miners,its will take high power comsumability,i suggest you to leave this one,just earn much money to buy bigger mining devices.

Do be carefull tough: you really have to know what you're doing to buy hashrate from a cloud mining company (like mininrigrentals). If you don't have loads of knowlegde, you'll almost allways lose coins in the process.

This is because nobody will rent out their hashrate for less than they would make mining themselfs with their ASICs. Only very seldom, an ASIC owner will make a mistake and rent out their hashrate to cheap. If you're an expert, you might spot these mistakes and use them to make some profit, if you're not an expert you won't spot them, and lose money...

Altough, mining with cloud mining companies can also be profitable when mining some altcoins, but that's a completely different story.

With a USB Bitcoin miner you won't profit but you could run it just for the sport if it makes you happy to be a miner. Another option is to buy some hashrate at a cloud mining company which will mine for you and you could estimate the rough profit you would make with them. But if you have set your heart on a USB miner whatever you get it will be okay.

the two answers above are completely correct.

To my knowledge, the most cost-efficient and cheap usb miner is the gekkoscience compaq, which mines @ 8-16Gh @0.3W (best case scenario, without the raspberry pi or laptop or pc you'll need to mine)

If you put the absolute best case scenario in here:
http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=16&p=0.3&pc=0.05&pf=0.00&d=178678307671.68800000&r=25.00000000&er=427.40000000&hc=0.00

You'll never break even (look at the numbers: days to break even NA)... and this was the absolute best case scenario (actually, not even best case scenario, but a dream scenario that can never exist), assuming following things:

• the blocks didn't halve
• the diff didn't rise
• the price didn't fall
• the stick actually did 16Ghs 24/7/365 and only used 0.3W
• no powered usb hub was needed
• no raspberry pi was needed
• you got all your hardware for free
• no pool fees
• electricity rate @ 5 cents/Kwu

These assumptions are not realistic, and still, you cannot make a profit... Sorry  


EDIT: the only way you can actually use this, is as a lotto miner...
I've put some more realistic numbers in the calculator (still not completely realistic, but at least, some more real world, still assuming you got the hardware for free tough)
http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=12&p=2&pc=0.10&pf=1.00&d=178678307671.68800000&r=25.00000000&er=427.40000000&hc=0.00

This calculation learns us that at current diff, each day at current diff you'll have 1 chance in 740.000 to mine a block... but each week it'll cost you about 3 cents worth of power.

If you setup a cheap raspberry pi + a compaq in your attick, and leave it running, you can see this as a lotto ticket... A onetime fee to buy the hardware, and afterwards you'll have 1 chance in 106.000 a week to mine a block (as long as the diff doesn't rise to much)
At the moment, a block will give you 25BTC, but in less than 3 months it'll only be 12.5BTC

Sorry to burst your bubble but mining bitcoin with a usb isnt gonna make you any profit in todays time. If you really want to make a profit on mining better buy a mining rig with a better hash rate then find an alternative electricity source (e.g. solar power) for that rig.

A USB miner will never even make enough to pay for the cost of the miner.  It's not worth getting if you plan on making anything.  Doesn't matter which one they are all obsolete.

Hi,

I want to mine bitcoin with usb. It's not to make a lot of profit but make my investicement profitable .

Can you help me and tell me if you know a solution for my problem. (Don't forget the words usb)

Thank you a lot.