We’ve talked about Bitcoins before, and even put together a list of 20 places where you can spend them.But a list of places to spend Bitcoins isn’t of much use if you don’t have any Bitcoins.Sure, you could go to a Bitcoin exchange such as Mt.Gox and exchange your money for Bitcoins, but there’s always security risks involved in doing so.If you decide to mine Bitcoins yourself, it’d probably take you forever just to mine one Bitcoin using an everyday computer rig.So, what’s a budding Bitcoin enthusiast to do?Well, if you’re serious about getting into Bitcoin, and don’t want to deal with the potential dangers of online Bitcoin exchanges, then there’s only one thing left to do: invest in a Bitcoin mining machine.These are purpose-built computers where the one and only aim is to mine as many Bitcoins as possible, as quickly as possible.Here’s a list of 5 machines that will be shipping in the near future.Make sure you have some cash to burn!There are three machine models in the Fast-Hash One series of Bitcoin mining machines: the Silver Edition, the Gold Edition and the Platinum Edition.

These are 19″ rack mountable Bitcoin machines, with the main differences being their expandability and the power of the included mining modules.All three machines come with one mining module, but can be upgraded to have six.The Silver Edition is powered by a 64 GH/s module and tops out at 384 GH/s.The Gold Edition is powered by a 128GH/s module, with a maximum hash rate of 768GH/s.The Platinum Edition comes with the most powerful 256 GH/s module, and can go up to 1.536TH/s.Overall, when fully upgraded, these machines will mine anywhere from 0.2 up to 0.85 Bitcoins a day.While the Silver Edition does not support expansion cases, both the Gold and Platinum Editions support up to six expansion cases, with each expansion case able to hold up to 16 modules, for even more mining power.The Fast-Hash One mining machines are available for pre-order.Price: $2,499 – 5,999 for base units CoinTerra’s TerraMiner IV is a water-cooled Bitcoin mining machine powered by CoinTerra’s own in-house ASIC chips, the GoldStrike I.

The TerraMiner IV is built on a 28nm process and comes in a 4U enclosure with a power supply included, which is a rarity in Bitcoin mining circles.The TerraMiner IV has four ASIC chips, and with each boasting a 500 GH/s hash rate, it means that the TerraMiner IV has a total hash rate of 2TH/s.At the current mining difficulty, that translates to just over 1.1 Bitcoins a day.CoinTerra also claim that the TerraMiner IV is power efficient, although there are no numbers available yet to prove this claim.The April batch for the TerraMiner IV is open for pre-orders.Hashfast’s Sierra is a high performance water-cooled Bitcoin mining machine powered by three Golden Nonce ASIC chips.It is built into a 4U rack mountable case and comes with two Seasonic power supplies built in.The Sierra has a nominal hash rate of 1.2 TH/s, which translates to about 0.66 Bitcoins a day as of the time of writing.The thing with the Sierra, though, is that it doesn’t have an on-board controller, so you’ll have to connect the Sierra to a main control unit via USB.

This main control unit can be anything that will run CGminer, a mining software.The Hashfast Sierra is open for pre-orders and is guaranteed to ship by March 31, 2014.Black Arrow’s Prospero X-3 is powered by 20 Black Arrow Minion ASIC chips built into a 19″ rack mount unit.The Minion ASICs are built on a 28nm process and are an in-house design.bitcoin core seedThe Prospero X-3 will also have a built-in LCD display that will show statistics and diagnostics.buy bitcoin adelaideThe 20 Minion ASIC chips in the Prospero X-3 give it a hash rate of 2TH/s, good for about 1.1 Bitcoins per day as of the time of writing.bitcoin tap faucetThe Prospero X-3 has been designed with up to 20% under- and overclocks in mind.ethereum price forecast 2017

It also supports the lightweight Stratum mining protocol.The Prospero X-3 is available for pre-order and is scheduled to be available at the end of February 2014.The KnCMiner Neptune is quite possibly the grand daddy of all Bitcoin mining machines.The Neptune is basically four modular 20nm ASIC boards, designed so that the machine will continue mining even if one (or more) of the boards fails.intel hd 3000 bitcoin miningThe Neptune follows up from their previous miner, the Jupiter, which was built on a 28nm process.bitcoin ethical issuesThe Neptune has a minimum hashing speed of 3TH/s, which translates to about 1.66 Bitcoins a day.raspberry pi bitcoin shopThis is a vast improvement on the Jupiter, which was only able to mine 0.6 Bitcoins a day.litecoin miner won't connect

KnCMiner also mention that they have the right to increase the speeds as it nears shipment, so the Neptune might end up being even faster once it gets into miners’ hands.The KnCMiner Neptune is currently available for pre-order, and is scheduled to begin shipping in Q1/Q2 of 2014, limited to 1200 units.At first, miners used their central processing unit (CPU) to mine, but soon this wasn't fast enough and it bogged down the system resources of the host computer.bitcoin wiki czMiners quickly moved on to using the graphical processing unit (GPU) in computer graphics cards because they were able to hash data 50 to 100 times faster and consumed much less power per unit of work.During the winter of 2011, a new industry sprang up with custom equipment that pushed the performance standards even higher.The first wave of these specialty bitcoin mining devices were easy to use Bitcoin miners were based on field-programmable gate array (FPGA) processors and attached to computers using a convenient USB connection.

FPGA miners used much less power than CPU's or GPU's and made concentrated mining farms possible for the first time.Application-specific integrated circuit (ASIC) miners have taken over completely.These ASIC machines mine at unprecedented speeds while consuming much less power than FPGA or GPU mining rigs.Several reputable companies have established themselves with excellent products.Currently, based on (1) price per hash and (2) electrical efficiency the best Bitcoin miner options are: AntMiner S7 4.73 Th/s 0.25 W/Gh 8.8 pounds $479.95 0.1645 AntMiner S9 13.5 Th/s 0.098 W/Gh 8.1 pounds $1,987.95 0.3603 Avalon6 3.5 Th/s 0.29 W/Gh 9.5 pounds $499.95 0.1232 For a comprehensive comparison of bitcoin mining hardware.Two major factors go into determining the best bitcoin mining hardware: (1) cost and (2) electricity efficiency.Bitcoin mining is difficult to do profitably but if you try then this Bitcoin miner is probably a good shot.

Application-specific integrated circuit chips (ASICs) are bitcoin mining hardware created solely to solve Bitcoin blocks.They have only minimal requirements for other normal computer applications.Consequently, ASIC Bitcoin mining systems can solve Bitcoin blocks much quicker and use less less electricity or power than older bitcoin mining hardware like CPUs, GPUs or FPGAs.As Bitcoin mining increases in popularity and the Bitcoin price rises so does the value of ASIC Bitcoin mining hardware.As more Bitcoin mining hardware is deployed to secure the Bitcoin network the Bitcoin difficulty rises.This makes it impossible to profitably compete without a Bitcoin ASIC system.Furthermore, Bitcoin ASIC technology keeps getting faster, more efficient and more productive so it keeps pushing the limits of what makes the best Bitcoin mining hardware.Some models of Bitcoin miners include Antminer S5, Antminer U3, ASICMiner BE Tube, ASICMiner BE Prisma, Avalon 2, Avalon 3, BTC Garden AM-V1 616 GH/s, VMC PLATINUM 6 MODULE, and USB miners.

AntMiner U2 2 Gh/s 1.0 W/Gh 0.8 ounces $49.66 BPMC Red Fury USB 2.5 Gh/s 0.96 W/Gh 1.6 ounces $44.99 GekkoScience 9.5 Gh/s 0.33 W/Gh 0.8 ounces $49.97 For those not interested in operating the actual hardware then they can purchase Bitcoin cloud mining contracts.Being listed in this section is NOT an endorsement of these services.There have been a tremendous amount of Bitcoin cloud mining scams.Hashflare Review: Hashflare offers SHA-256 mining contracts and more profitable SHA-256 coins can be mined while automatic payouts are still in BTC.Customers must purchase at least 10 GH/s.Genesis Mining Review: Genesis Mining is the largest Bitcoin and scrypt cloud mining provider.Genesis Mining offers three Bitcoin cloud mining plans that are reasonably priced.Zcash mining contracts are also available.Hashing 24 Review: Hashing24 has been involved with Bitcoin mining since 2012.They have facilities in Iceland and Georgia.

They use modern ASIC chips from BitFury deliver the maximum performance and efficiency possible.Minex Review: Minex is an innovative aggregator of blockchain projects presented in an economic simulation game format.Users purchase Cloudpacks which can then be used to build an index from pre-picked sets of cloud mining farms, lotteries, casinos, real-world markets and much more.Minergate Review: Offers both pool and merged mining and cloud mining services for Bitcoin.Hashnest Review: Hashnest is operated by Bitmain, the producer of the Antminer line of Bitcoin miners.HashNest currently has over 600 Antminer S7s for rent.You can view the most up-to-date pricing and availability on Hashnest's website.At the time of writing one Antminer S7's hash rate can be rented for $1,200.Bitcoin Cloud Mining Review: Currently all Bitcoin Cloud Mining contracts are sold out.NiceHash Review: NiceHash is unique in that it uses an orderbook to match mining contract buyers and sellers.Check its website for up-to-date prices.