And some more space reserved.

Reserved for future updates.

Hello.

BitfFury is deeply committed to a decentralized Bitcoin Blockchain ecosystem and we want to do all we can to ensure that as many hobbyists and engineers as possible have access to the technology we have developed with the support we've had from the Bitcoin community. Therefore we have decided to release our 28nm designs under Creative Commons Attribution Share Alike 3.0 License to give you the opportunity to get familiar with the style of our latest designs.

http://dl.bitfury.com/small/28nm/img/MbLiquid-9v41_thmb.jpg
http://dl.bitfury.com/small/28nm/img/48v_air_thmb.jpghttp://dl.bitfury.com/small/28nm/img/48V_hashboard_thmb.jpg

You will find higher resolution images together with schematics in http://dl.bitfury.com/28nm/.

Let's take a look at the files:

12Vcircuit.pdf contains a circuit of a 12V StringPower hashboard. PCIe connector is used to interface with the motherboard. The connector has modified SPI interface with 2 data buses leading to chips. On the right side of the connector is the Level_norm level shifter cirquit which is there mostly for 55nm legacy purposes.

48Vcircuit.pdf contains a circuit of a 48V StringPower hashboard. Not much difference to 12V except longer strings for higher voltage.

StringPowerBlock.pdf is probably the most interesting one. This is a block of one 250nm communicator chip and seven 28nm chips. Here you can see how the individual blocks are interconnected (differential pairs), hashing chip connections and how the StringPower design that BitFury pioneered with our first 55nm chip works.

It's worth pointing out that the decoupling capacitors that you see around the hash chips and the 250nm communicator chip will be absent in the 16nm design. They have all been integrated. The only thing that will be required on the hash board apart from 16nm and 250nm chips will be 10pF 0402 capacitors for communication pins. So no semiconductors, electrolytes, stabiliziators, resistors etc will be needed. How's that for minimal BOM cost?

MbLiquid-9_v1.pdf This is one of our latest motherboard designs, that can accomodate 9 hash boards. As you can see we're using the releatively cheap PCIe connectors for connecting the hash boards.

This design is built around the STM32F407 that is being used as a commutator with UART input from any source (RasPi, USB-UART converter etc). The output is 9 SPI buses for connection of the hash boards. So from 1 UART connection we're able to service up to 1700 hash chips (over 20TH/s with our 28nm chip and even more with the 16nm). 16nm will work in a very similar way.

All-in-all the design is quite flexible when it comes to voltage. Every block is fed with 4-6V and is connectedto the outside through differential connections through small 10pF capacitors. Blocks can be connected in parallel or in series on one or several PCBs. The can also be connected directly to SPI of e.g. Raspberry Pi. They don't require stable voltage so no stabilisators or regulators are needed. The only downside of this design are the 6-12 I/O connections that take up some space on the PCB.

We invite you to watch our video of the new 16nm chip! https://www.youtube.com/watch?v=3zPpj1JYw38

This is first out of 3 videos in series about our new 16nm Bitcoin Mining ASIC where we demonstrate the low power performance of the chip. Notice that there is no heat sink attached. In the next videos we will demonstrate high power performance and higher hash rate that can be achieved by using a heat sink.

We expect mining devices with the 16nm chip to start appearing on the market as soon as by the end of March 2016.

Please beware of scammers and check our website for listing of confirmed integrator and reseller partners. We will be listing them in the coming weeks.

The lamp will be silent as it's passively cooled. The hash rate and power draw will be announced when the product is finished.

We are working on this and will update once we have more information.

Thank you for your comment, we have already fixed it.

White Paper "Public versus Private Blockchains" from BitFury Group in collaboration with Jeff Garzik:
http://bitfury.com/content/4-white-papers-research/public-vs-private-pt1-1.pdf
http://bitfury.com/content/4-white-papers-research/public-vs-private-pt2-1.pdf

We have published new research on the topic "Proof of Stake vs Proof of Work": http://bitfury.org/white-papers-research
You are welcome to read and comment this paper here: https://bitcointalk.org/index.php?topic=896350.80

We have published new research on the topic "Proof of Stake vs Proof of Work": http://bitfury.org/white-papers-research
You are welcome to read and comment this paper here

It takes quite a bit of work to take it from production prototype to actual mass production unit. And then there's regulation that requires FCC, CE etc testing and verification that the final product still needs to pass. So timelines are not completely dependent on us, and we would rather not commit to any date we can't keep for sure.

Yes, we have read comments of Bitcoin developers and find them quite informative. We are glad our research paper gained interest in the Bitcoin community. Keep an eye out for our new researches!

Scam

In case anybody haven't seen yet, we have published extensive research on block size increase: http://www.bitfury.org/white-papers-research

BitFury publishes extensive research on block size increase: http://www.bitfury.org/white-papers-research

Thank you for your interest, we are always open to new partnership opportunities.
At this time, we offer contracts starting from 1Phs. If you are interested in such wholesale volumes, send us request at sales@bitfury.org and we will follow up with detailed information

Please refer to the information we sent to you via pm

You are mistaken, you don't have BitFury SCRYPT miner, as we didn't produce them, we only make SHA256 miners

BitFury Raises $20 Million in Latest Fundraising Round

http://www.coindesk.com/bitcoin-miner-bitfury-rasies-20-million/

Stay tuned and visit our Press Page to stay on top of our most recent news: http://www.bitfury.org/press