Quote from: shaohui on February 28, 2014, 11:21:24 AM

Quote from: bitwhizz on February 20, 2014, 11:17:16 PM

Hi
CRYPTOWARE will be hosting a group buy for Coincraft A1 chips. For those who do not know me, my name is Nathan and i am based in London, United Kingdom. I am a co- owner of a new start up venture called CRYPTOWARE. Please visit www.cryptoware.co.uk for more details. We are a registered start up company in the United Kingdom with a dedicated team behind it. I have made plenty of large transactions with many people on this forum. Sometimes without escrow. If needed i can provide identification. I am starting my fourth group buy . If you want to buy using paypal, please use the website . you must have a verified paypal postal address. Previous Group buy --> https://bitcointalk.org/index.php?topic=421092.0

We will be purchasing a large number of chips depending on the interest on this forum,

Technical specifications* of the CoinCraft A1 ASIC:

Developed on 28nm HPP process from Global Foundries
Custom IC package with power bars for low voltage, high current feeding
Configurable in daisy chain mode for distributed work with up to 253 ASICs.
Standard SPI interface
Hashing power of 25 GH/s in nominal and up to 40 GH/s in Turbo mode
Power usage of 0.35 W/GH in low power, 0.6 W/GH in nominal and 1 W/GH in Turbo mode
Supply voltage of 0.65V in low power, 0.765 V in nominal and 0.85 V in Turbo mode
Mass production available starting from the second week of December 2013

A1 coin craft chips will be priced at $87.50 per chip + 8% fee

ORDERS QTY Process (Paid/Confirmed address)
-------- --- -------------------------
Bitwhizz 250
end18 40

-----------------------------------------------

290

We won;t accept orders yet,
Once the 500 chip minimum is raised in orders, we will proceed with ordering the chips

The payment is priced in dollars,
Please get in touch with either myself or user Tirapon and we will agree the price in bitcoin at the current bitstamp exchange rate. This allows us to get the funds cashed out in dollars, to minimise exposure to the exchange rate.

Regards

Bitwhizz

Do you have PCB+BOM ？spport ?

Do you need Bitmine's 2 chip reference board?

I have 200 pc of Bitmine reference board and 20 set of components except A1 chip.