USB Bitcoin miners are available to buy, but they don’t really generate any significant profits.They’re a good choice if you just want to fool around with Bitcoin mining and miners like the Antminer S9, S7, S5, Antminer R4, SP20, and Avalon6 are too expensive for you.You should buy one to learn how mining works, but other than that don’t expect much!If you are serious about making profit then check out better Bitcoin mining hardware.You can always check the profitability of a USB miner using our mining calculator.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.The GekkoScience miners is just slightly better than the original block erupters.It will net you about $0.15 per month, which is more than a dollar per year!The company claims that the device runs completely silent.It works with just one USB port.The Avalon Nano 3 is a 3.6 GH/s miner, which will earn you about $1 per year.

No fan is required and it just plugs into your USB port on any computer.The Bitmain AntRouter isn’t exactly a USB miner, but it is similar.It’s low cost, but with that you get a low GH/s at just 5.5 GH/s which is a little over $1 per year.Table of ContentsBitcoin USB Miners ComparisonASICMiner Block Erupter USB 330MH/s Sapphire MinerGekkoScience Compac USB Stick Bitcoin MinerAvalon Nano 3Bitmain Antrouter R1 Wifi Solo Bitcoin Miner21 Bitcoin ComputerMore Bitcoin Mining Hardware ASICs (None-USB) The plus side is it works as a wireless router, so you can do some mining while providing internet for all your devices.The 21 Bitcoin Computer isn’t the typical USB Bitcoin miner.happy litecoinIt does, however, plugin to your computer via USB.bitcoin-qt get private keyIn terms of $ / hash rate, it’s not a very good choice.But since it’s still technically a USB miner we have included it in this list.If you’re not impressed, we don’t blame you!bitcoin donation widget

USB Bitcoin mining was only profitable when Bitcoin was in its early years.If you just want bitcoins then invest in serious mining hardware or just buy bitcoins.The newest fastest USB Bitcoin miner of the world.This week the new fastest USB bitcoin miner of the world will release: The hex•fury 11+ GH/s USB stick miner.This one is seen as the big brother of the bi•fury, the USB miner which released in October last year.Despite of the fall of MtGox there is still a big demand for USB miners, and as there are just a couple of bi•furies left now, this successor takes a perfect timing to gain the market share.- Hashrate: ~11GH/s out of the box, up to 15GH/s overclocked,- Power usage: ~0.86W per GH,- Dimensions: 26x60mm without usb plug,- Voltage: 5V- Power requirement: 2-2.5A- Supported software: cgminer 3.8.2 and up, BFgminer 3.7.0 and up.Same as the bi•fury, this beautiful and very efficient USB miner is developed by intron and c-scape.They made it to fix some amazing work again.I had the honour to ask intron some questions about the hex•fury.Christien Havranek:intron:CH: intron: One of the stumbling blocks you always have when designing a Bitcoin miner is the power supply, the energy supply system of the chips.

To prevent too much warmth generation, the supply voltage of the chips is kept as low as possible, normally around 0.85 Volts.When the number of these chips increase to make a bigger miner some technical difficulties with this power supply emerge./watch?v=ELA91d_mx80CH: intron:CH: intron:CH: intron: A beefed-up USB hub.The low-cost adjustable 5V/5A power supplyallows for easy overclocking.CH: intron: A large group of hex•furies, the big brothers of the bi•fury./ Newsletter The biggest stories in bitcoin delivered weekly to your inbox Thank you!Please check your inbox to confirm your subscription.Store Call for Writers We are always looking for talented writers to join our team. Be the first to know with bitcoin news delivered to your inbox No spam, we promise - unsubscribe anytimeHobby Bitcoin mining can still be fun and even profitable if you have cheap electricity, an efficient bitcoin mining machine, and get the best Bitcoin mining hardware.It’s important to remember, however, that Bitcoin mining is competitive and today it is not a good idea for the average person to mine.

If you want bitcoins then you are better off buying bitcoins.Since it’s now impossible to profitably mine Bitcoin with your computer, you’ll need specialized hardware called ASICs.Table of ContentsBitcoin Mining Hardware ComparisonWhat is an ASIC Bitcoin Miner?Don’t Get ConfusedHow to Find the Best Bitcoin MinerBitcoin Miners for Sale on eBay or AmazonUsed Bitcoin Mining Hardware for SaleJust Want Bitcoins?Hardware ProfitabilityMost Efficient Bitcoin MinersBitcoin Mining Hardware CompaniesBitcoin Mining EquipmentBitcoin Mining Without Hardware?USB Bitcoin MinersOriginally, Satoshi intended for Bitcoin to be mined on computer CPUs.However, Bitcoin miners discovered they could get more hashing power from graphic cards.Graphic cards were then surpassed by ASICs (Application Specific Integrated Circuits).Nowadays all serious Bitcoin mining is performed on dedicated Bitcoin mining hardware ASICs, usually in thermally-regulated data-centers with access to low-cost electricity.Think of a Bitcoin ASIC as specialized Bitcoin mining computers, Bitcoin mining machines, or “bitcoin generators”.There is Bitcoin mining hardware, which mines bitcoins.There are also Bitcoin hardware wallets, which store bitcoins.There are some important factors to look at when determining which Bitcoin mining ASIC to buy:Hash rate – How many hashes per second can the Bitcoin miner make?

More hashes cost more, which is why efficiency is crucial…Efficiency – You’ll want to buy the most efficient bitcoin mining hardware possible.Since miners use a large amount of electricity, you want to buy one that converts the most amount of electricity into bitcoins.Price – How much does the bitcoin miner cost?Cheap mining hardware will mine less bitcoins, which is why efficiency and electricity usage are important.The fastest and more efficient mining hardware is going to cost more.Don’t try to buy a miner based on only price or only hash rate.The best ASIC miner is the most efficient bitcoin miner.Aim for value.If you’re a hobby miner who wants to buy a couple rigs for your house, eBay and Amazon both have some decent deals on mining hardware.Both new and used bitcoin mining rigs and ASICs are available on eBay.One may want to buy used ASIC mining hardware on eBay because you can get better prices.eBay’s customer protection ensures you’ll get a working product.Other bundled equipment may be included with your purchase depending on the seller.We recommend purchasing the Antminer S7 or the Antminer S9.If you just want bitcoins, mining is NOT the best way to obtain coins.Buying bitcoins is the EASIEST and FASTEST way to purchase bitcoins.Get $10 worth of free bitcoins when you buy $100 or more at Coinbase.You can use a bitcoin mining profitability calculator to determine your estimated cost of return on your mining hardware.Be sure to take electricity costs into account.

Most mining hardware appears profitable until electricity costs are accounted for.Good Bitcoin mining hardware needs to have a high hash rate.But, efficiency is just as important.An efficient Bitcoin miner means that you pay less in electricity costs per hash.The miners in the table below are currently the most efficient Bitcoin miners on the market.The Avalon6 gets 0.29 Watts/GH, but costs more than $200 more than the Antminer S7.The Antminer S7 is more efficient, with 0.25 Watts/GH.The Antminer S7 also costs much less, and comes with 4.5 TH/s of hash power compared to the Avalon6’s 3.50 TH/s.The AntMiner S7 is clearly the better option between these two miners, which are currently the most efficient miners available for purchase.To improve your efficiency, there are also companies that will let you order hardware to their warehouse and run the miners for you.You could also cloud mine bitcoins.But both options are a lot less fun than running your hardware!Bitmain – Bitmain makes the Antminer line of Bitcoin miners.

Bitmain is based in China and also operates a mining pool.BitFury – BitFury is one of the largest producers of Bitcoin mining hardware and chips.Its hardware is not available for purchase.Spondoolies Tech – Spondoolies Tech is an Israeli based mining hardware manufacturer.In addition to a Bitcoin mining ASIC, you’ll need some other Bitcoin mining equipment:Power Supply – Bitcoin rigs need special power supplies to funnel and use electricity efficiently.Cooling Fans – Bitcoin hardware can easily overheat and stop working.Buy a sufficient amount of cooling fans to keep your hardware working.You can find Bitcoin mining equipment for sale on eBay.It’s still technically possible to mine bitcoins without dedicated mining hardware.However, you’ll earn less than one penny per month.Mining bitcoins on your computer will do more damage to your computer and won’t earn a profit.So, it’s not worth it unless you’re just interested to see how the mining process works.You’re best bet is to buy dedicated hardware like the Antminer S7 or Antminer S9.Using a Bitcoin USB miner with your computer was once a profitable way to mine bitcoins.