Limited availability on eBay: http://www.ebay.com/itm/NEW-Redhash-105-Gh-s-ASIC-Bitcoin-Miner-Avalon-clone-/321233038462?#shpCntId

Auction: https://bitcointalk.org/index.php?topic=303379.0;all


Five months ago, I and two partners founded TAV (thinairventures.com), a company designing and selling ASIC miners. We have been operating in stealth mode, and today is our launch day! We are proudly announcing our first product: Redhash, a 105 Ghash/sec miner, available right now. We are selling a limited number of units in an online auction starting at 15 BTC per Redhash unit. The auction is denominated in bitcoins, but we accept various forms of payment.

15 BTC with units shipping now is clearly profitable: http://mining.thegenesisblock.com/a/44fc645248 (55% month-over-month difficulty increase), and even a pessimistic 100% month-over-month increase is profitable. Also, 15 BTC for 105 Ghash/sec beats the price per Ghash/sec of any competitor shipping now or in October!

Redhash Specs

Redhash is an improved Avalon clone Bitcoin miner:
- 105 Ghash/sec (320 chips at 328 MHz)
- Standard 4U/19" rack-mountable chassis: the feature most requested by Avalon owners
- Highly modular: 32 individually-replaceable hash units
- 100% compatible with 80-chip Avalon "modules" which fit the Redhash backplanes
- Easy to service: remove the top cover (5 screws), and no other screws or cables need to be removed or detached to replace individual hash units
- Best chassis and mechanical design for upcoming 2nd-generation Avalon ASICs
- Power consumption: 940W at the wall (120-240V), outputting 780-790W at DC (12V), making our provided PSU (Corsair TX850M) run at 92-93% of its maximum load
- Oversized chassis accepts all "long" PSUs such as Corsair AX1200
- Ships from the USA: no customs for US buyers
- Fans ignore PWM control - always run at 100% speed for maximum cooling (very noisy! You may replace them with standard PWM-controllable fans for quieter operation, but this necessitates downclocking below 328 MHz!)
- Warranty: Guaranteed working on delivery


(For more picture, see bottom of this post.)

Who we are

I am Marc Bevand (aka mrb), a longtime trusted active member of the Bitcoin community since December 2010. My first adventure with Bitcoin was to develop what was at the time the fastest GPU miner for AMD Radeon cards, hdminer. My business partners are Bertrand Darnault and Jonny Gerold. I have known Bertrand for 9 years, we both graduated from the same computer science school (Epita) from the class of 2003.  And I have known Jonny for a little over a year, since we met as coworkers. All three of us are just as highly fascinated about Bitcoin as each other.

Why you can trust us

We understand that trust in a vendor is primordial in the Bitcoin mining world. We have done numerous things the "right" way in order to establish trust:

• From the beginning, TAV's vision was to avoid offering risky preorders as they inflict stress and incertitude on customers. So, unlike the vast majority of ASIC vendors, TAV does not require preorders. Our miners are in stock, available today, already developed and working, ready to ship.
• We can prove we ordered 10,000 Avalon chips, which were used to build our Redhash miners. We sent 782.1 BTC from our address 1AAoyFmZuUbVpNUJFCCSJbZQSvSRm8vPad to Bitsyncom’s temporary address 1H9whoZUz1iNyBagMUrudw3AnoRqLHKpH5 on April 21, 2013. As seen in the blockchain, this amount was almost instantly re-transferred to Bitsyncom’s well-known address used for receiving Avalon chip payments: 1FGAftzSTztFSB8LMwsrdCKTyqGY6zr3sU. The message "TAV ordered 10,000 Avalon chips on April 21, 2013" has been signed with our sending address. The signature is G5bJki+cSGKJcVA27qI7vspAQnWc19n2VXvzxlsBR7/wO6fiavyoMIp/vPcUVlchtfMjnBeWXQn+ZYq96rFfVSc= and can be verified by anyone:
  
  

• On June 14, 2013, we were the first to demonstrate a working Avalon clone by posting a "teaser" post: https://bitcointalk.org/index.php?topic=234173.0
• We have been testing all our Redhash miners (a bit less than 10,000 chips = approximately 3 terrahash/sec) on the pool Eligius for the last 2-3 days to publicly demonstrate that our hardware is working: http://eligius.st/~wizkid057/newstats/userstats.php/1NkkkghQHFNs8H1hAmKDM9fJo4mBkoHeej Notice the nickname of this address has been set to our company name "Thin Air Ventures" (TAV) on the pool's website.
• We provide multiple pictures of our chips, products, and facilities in this post as well as on our website.
• The company Thin Air Ventures, LLC was formed in the US state of Delaware. (However, do not confuse us with an LLC bearing the same name as us that was created and dissolved in respectively 2001 and 2005.)
• The WHOIS information for our domain thinairventures.com is de-anonymized and contains the contact information of one of our founders, Marc Bevand, as well as our actual office address in Lake Forest, CA, USA. (Note: no valuable hardware is stored on site - everything is in a data center).
  
• Anybody is welcome to pay us a visit at our office at 20331 Lake Forest #C7, Lake Forest, CA 92630. Please make an appointment ahead of time by mailing sales@thinairventures.com, to guarantee someone will be there to receive you at the time of your visit.

Ordering

The market has highly varying opinions on the value of ASIC miners. Therefore we decided to let the market determine the right price by launching an online auction to the highest bidder with a minimum bid starting at 15 BTC per Redhash unit (105 Ghash/sec), with minimum increments of 1 BTC. We have a limited number of units available in this auction: only 27 units. The auction starts now and runs for a few days. Auction winners will have 4 calendar days to make payment, which can be made in bitcoins, credit card, cash, cashier's check, or wire transfer. If paying in USD, we will convert your bid's BTC amount to USD according to the current coinbase.com exchange rate +/-1% that we will announce publicly the moment the auction ends. The Coinbase exchange rate is usually very close to the CoinDesk Bitcoin Price Index: http://www.coindesk.com/price

The auction takes place in the Auctions subforum, where the auction rules and payment details are explained in depth, see Auction thread.

Shipping

We ship worldwide, from southern California, USA. We will accommodate whatever shipping carrier you request at the time of payment: UPS, Fedex, US Postal Service, etc. Shipping is free (included in your bid) when using standard shipping (UPS/Fedex for destinations in the USA, and US Postal Service for worldwide destinations). If you request some sort of expedited shipping, you will be asked to pay for shipping in addition to paying your auction bid.

Alternatively, we offer local pickup (at our office in Lake Forest, CA, or at our data center in Irvine, CA). We will take 0.5 BTC off the price if you choose this option over shipping.

For international shipping, we highly recommend to ship the Redhash unit without the Power Supply Unit as its presence may cause issues at Customs during import. You should instead purchase a standard PSU on your local market (850 Watt minimum). Of course the decision is up to you, but if you choose to have the Redhash unit shipped without PSU, we will take 0.5 BTC off the price you bid.

Future plans

We want to make TAV the most trusted and well-respected ASIC miner vendor. We are working on future projects, but will not divulge any details. Do expect future announces, like this hard launch, that surprise the community :-)

What USB protocol do these miners implement?
Do they emulate ASICMINER's BlockErupters for software compatibility?
Does the git version of cgminer support them?

Actually, for the last week, every day BFL has been able to ship about 10-15 days' worth of Single SC pre-orders. For example yesterday alone, they shipped all the Oct 3-17, 2012 pre-orders: https://forums.butterflylabs.com/blogs/bfl_jody/

There are ~330 days of pre-orders remaining to ship, so at this rate they should need merely 20-30 more days to ship everything, which is approximately mid October.

Plus, the number of pre-orders almost certainly slowed down in late 2012 and through 2013, so again assuming they can just maintain the current rate of shipping, we should see BFL able to ship a lot more than 10-15 days's worth of Single SC pre-orders... so their "end of September" estimate seems absolutely plausible.

Addendum: it is a different story for Jalapenos and Mini-Rigs... BFL is outsourcing Jalapenos, and seem to have a lot of issues producing Mini-Rigs, so they might not finish shipping these 2 product lines any time soon.

Ok, so adding multiple expansions modules is how you get to lower $ per Ghash... Thanks for correcting me.

Not VMC! VMC are expensive at $9.4, not $6. Can you fix your title?

Nevermind.

theymos, what is the best way to publish an ad starting on a specific day & time that falls in the middle of round 97?
Can we bid for ad slots, serve empty HTML/CSS up to this day & time, then you would update it when we notify you with 24 hours of notice?

VolanicEruptor, you keep incorrectly claiming "$6 per Gh/s" when in fact the best priced machine is the 256 Gh/s at $2400 which is $9.4 per Gh/s!

I agree with your general sentiment. There will be bumps on the road. Companies will run behind schedule. Etc.

But you really need to look at hard numbers. 100 petahash/s is merely 9300 wafers of Bitfury's 55nm chip, or 2300 wafers at 28nm. This is nothing! Looking at the order of magnitude, this is 0.01% of the semiconductor industry's yearly capacity! It is so obvious that this is within Bitcoin ASIC vendors's capability to produce and deploy this few wafers of chips by September 2014.

I have 1000+ Avalon chips in my hands (southern California) that I would be clearly willing to sell at around 0.049-0.055 BTC per chip. Price is negotiable. Email me at m.bevand at gmail.com

You assumed prices of $10 per Ghash/s. It is well-known current ASIC vendors have insane margins on the raw silicon. As a matter of fact, Cointerra is already selling pre-orders $3 per Ghash/s. Watch the price drop to $1 or less per Ghash/s over the next 12 months. Therefore a $100 million investment in mining hardware is all you need for the network to grow to 100 Phash/s. This will happen by September 2014. Watch.

1. Completely untrue. At the very beginning (2009-2010), the market at the time was just not big enough to warrant investing even $150k to develop a 130nm ASIC. Plus Bitcoin's future success was very uncertain (legally and technologically speaking), so it would have been a very risky venture. ASICs were seen as inevitable, provided the Bitcoin market became big enough and the risks decreased. Once these 2 things happened, ASIC developments started.

2. Yes there is a choice: do not buy overpriced mining hardware. Wait for prices to decrease. Duh!

3. Prices will decrease by themselves. Just let capitalism do its work. There are so many ASIC companies competing between each other that prices are falling as we speak. Not too long ago the best you could get was 50 Mhash/s per dollar (Avalon ~75 Gh/s at $1500), and now the market is already moving toward 300+ Mhash/s per dollar (Cointerra TM IV 2 Thash/s at $6000 in 2014).

I am looking to buy Avalon chips in qty 1000+ at a price of 0.007-0.010 BTC per chip. Email me offers at m.bevand at gmail.com. I am in southern California.

So the "end of august" deadline has passed. Is Alydian online? Is anybody renting hashing power?

I see. $14000/(1200 Gh/s * 5) = $2.33/Gh/s. The page should attempt to make it less confusing.

Can you correct your math?

You write "Second Batch Sierra - With Miner Protection Program™ - as low as $2.33/Gh/s!" which obviously should be $14000 / 1200 Gh/s = $11.67/Gh/s.

No. Try running 300-400 USB BlockErupters... You will find out they have running costs roughly 2x those of Avalon. They use twice more watts for the same Mhash/sec.

This is a law of thermodynamics, you can't disagree with it

Here is what confuses you: a CPU advertised with a thermal dissipation of 100W will actually draw anywhere from 0 to 100W depending on the load. It does not constantly draw 100W. You can measure this with a clamp-meter on the 4-pin ATX12V cable. So if average computer usage leads to the CPU drawing 40W, then on average you will only observe 40W of heat coming out of a "100W" CPU.

A Bitcoin mining chip, unlike a typical electronic chip, runs at full load 100% of the time. So a Bitcoin mining chip with a thermal dissipation of 100W will always exhaust 100W of heat.

300W of electrical consumption will always generate 300W of heat, no matter how efficient or inefficient the chip is. This is the law of conservation of energy.

aerobatic, yes Bitfury's 400 Gh/s rig would need fans if put in an enclosed box. But three 80mm fans (spanning the width of the m-hash board) to push air horizontally is still "easier" than the heavy HSF or fancy water cooling system that a 500 Gh/s cointerra chip will require. You made a specific claim about ease of cooling a big hot chip, so I responded to this claim precisely.

I do agree with the rest of your post, that a system with a single big hot chip might be cheaper than numerous smaller chips (less PCB, fewer components, etc).

Bitfury (2W per chip) and Cointerra (300W per chip) are the extreme opposites of the scale. I think the best tradeoff in terms of cost and ease of cooling is somewhere in-between (20-150W per chip). Cointerra is taking unnecessary risks by aiming at the absolute highest wattage possible than can be practically cooled. They should have gone with 2 x 150W chips for example. It would have removed a huge cooling challenge, while not necessarily increasing cost that much.

I have no respect for people who refuse to admit their errors, use profanity, lie childishly, etc. Some confrontation can hopefully make them think about their actions, turn them into better individuals, and improve the quality of the forums. But then again I am an optimist...