Bitcoin Forum

selling my three FPGA-Clusters with a total of 30 Boards - 26Gh/s

Price for all three Clusters (30 Boards) incl. PSUs, USB-Hubs, Cables etc.: 120BTC
Price for a single Cluster (10 Boards), no PSU but incl. USB-Hub, Cable etc.: 40 BTC
Price for single Boards: 4BTC - (a single-PSU with good quality cann be included for 15€ or 0.2BTC)

http://abload.de/img/ztexboards_mining80s9c.jpg
http://i.ebayimg.com/t/9x-FPGA-Bitcoin-Miner-ZTEX-1-15y-kompatibles-Board-850-880MH-s-kein-ASIC-/00/s/MTYwMFgxMjAw/z/GIMAAMXQO21Rpis0/$T2eC16h,!zUE9s39!ee0BRpis0MCzg~~60_57.JPG


Best regards Menig

ill pay you 1 BTC / 1 GH

 ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D

Hi,

Where is the boards located?

Hello baad,

the boards are in Germany, but worldwide shipping is no problem.

best regards
Menig

pm sent

25 btc for all clusters psus cables etc

PMs answered

30 btc for all clusters

good joke

*push*

I could do 20 BTC for a cluster, 40 is too high. I'm still nowhere near making back my money on 10 of these at the original sale price. ;)

31 for the entire cluster

Didnt you just sell some of these?

I am a trader.   8)

Menig, you can order a $22,000 ASIC that does 1500GH. You want $12,000 for like 40GH 26GH? And those take up alot of space...You obviously already made a decent profit, you can't expect to sell them for that much...and difficulty is rising extremely fast with asics coming on. Breakeven for $5000 investment at 26GH/s would take 147 days at 35,000,000 difficulty. Its at 19million now. Within 4 months will be like 70-100million higher. So averaging out the profit at 35million difficulty is actually being nice to you, lol.


EDIT: Running the numbers, an exponential difficulty rise like that projected from Asics shipping in mass, would make the ROI longer than 147 days..Keep in mind, people are getting their Jalapenos that do 5-7GH/s and they paid 150-250 ($250 with updated pricing from BFL) ...That would put 26GH's at like $750-> $1250. Granted, people that order now won't get them for months. But thats why I'm offering a extra for your lot. Running the numbers, I'd probably actually only give you 25 BTC for everything. 28 if you shipped like next day air, and did escrow. I understand if you don't like my offer, but I believe my reasoning is sound.

EDIT2: 26GH/s, difficulty at 100million, would take 1 year 187 days to make $5000... Minirigs (1.5 TH/s) are starting to ship now.. Sell while you can. Difficulty at 30million (would be by the time I got your devices)     
-------------------------
Difficulty 30,000,000.00
Mining Factor 100    0.17 USD/24h@100MHash/s as in these charts
Average generation time for a block (solo)    57 days, 8 hours (can vary greatly depending on your luck)
Hardware break even    72 days
Net profit first time frame    783.24 USD

Timeframe was 3 months, with hardware investment at $3000 for 26GH/s
-------------------------
You might be like damn, greedy bastard expects 800 bucks in 3 months on a $3000 investment. However, after all those ASICs ship, profitability goes to shit. It has to make money in 3-4 months, cause after that, you won't be getting shit.

I think you missed the boat on selling these for the kind of money you are asking.

USB sticks, new Blades soon, BFL shipping a few things, etc etc. You missed the window. But you made your money I would think anyway.

repeat.  31 BTC. 

I'll do 60BTC for all of them, you pay shipping.  More than a fair price considering performance vs available in hand Avalon or BFL boxes.  Additionally that's 20% over the price of XC6SLX150-3's reballed from China.  So 20% over market price for used ICs that are mounted on a board.

60BTC is not 20% "over the price from chhina... incl. tax and all i paid much more to get this Boards in Hands in germany !

So, i will reduce my Price for all 30 Boards to 110 BTC !  thats it ! Buy it, or not, thats your desicion.

But as you now  a price of 3.5 btc is reachable for each board ! so dont steal my time with offers like "1btc each Gh/s" oder "60BTC all"....

thanks Menig

Just remember 78 brand new USB block erupters cost 78B and will use <200 watts = 26GH.
Add in 3 BTC for USB powered strips your at roughly 80 BTC for Asics.

Yes I know fpgas can be reprogrammed, etc. but I don't see buyers here looking for that, perhaps eBay or other markets people want these for that purpose and not to mining? 

Wish you the best though selling them.

I don't plan on using them for mining.  I'm interested in them for other reasons (the ztex boards are a good design).  No real point in mining off FPGAs given that 60BTC gets 4x BFL 5gh/s units (reflashable to 8gh/s) at less power consumption.

its always the same... 78BTC for 78 erupters is wrong... because no tax, no shippment etc.  if you buy 78 sticks e.g. here in germany you pay 19% tax... BÄM.91 BTC, with USB-Strip, shipping etc. lets say 95 BTC
so the price is neary the same as i want for my boards (100BTC)

but: my boards are in hand so you can immideatly start with mining (0.66 BTC Day) - so for two weeks and new diff with 20.8mio which will come thats round about 8 BTC (if asicminers delivers the sticks in two weeks... i think
it will really need more time....) but lets think two weeks... than iam 95BTC for sticks and not sure they are in hand... and 92 BTC left for 30 Boards which are already mining in hand...

lets go six months futher.... profibility stops..... asic-sticks ? 0 BTC selling price... PFGAs... ZTEX.komp. round about 100-200€ (dont know for what they are sellable e.g. in usa) - are a benefit of 3000-6000€ ....

so as the boards are sold for the same price as usb-sticks (which are bullshit in my eyes) - fpgas are the better choice.... but thats only my opinion.

sorry for my grammatik....  english is not native to me ;)

best regards
Menig

Excellent rig dude , I hope you get what you want for them .

hmm i heard, friedcat is declaring the USB Miners at an amount of 5 USD per USB for customs, this makes 19% VAT from 5 USD (5*78=390*0,19= 74USD)= 1BTC ATM. I also dont think that shipping costs more then 1 BTC.
Which makes the ASIC solution a straight 80 BTC cost, in my opinion.

But you are right, your FPGAs are in hand and you dont lose much time after ordering from you!

regards

Where oh where are all the people that buy FPGAs because you can do something else with them other than mine? Surely one of them will step forward and gladly pay 120 BTC for equipment worth less than half that  ::)

As I said, I won't mine with them.  I'd use them for other projects.

Menig: Go on hkinventory, post an RFQ for XC6SLX150-3CSG484 (same IC on the ztex) and say quantity 100, reballs ok.  You'll get a deluge of suppliers from Shenzhen offering them at $40-$50 USD each.  Anyone who quotes AVNET, Digikey, etc are only useful for sourcing prototyping parts with short turn around.  They just buy from the same Chinese suppliers on hkinventory or alibaba for < 5k lots from Xilinx.

I really want to find the fpga parts for 50-60 dollas...

The problem with the components market is its a lot like shopping for an automobile.  If you try to find a price without interacting with the sales people, its high and usually not close to what you could get it for.  Even if you send out an RFQ to a supplier, they still want to know your target price before they'll give you a quote.   Its a shitty industry, but in the last decade the Chinese have done a really good job of poaching customers from the vultures.  Blessed be the internet.

Tip for getting quotes:   Always contact the manufacturer first, find out what direct volume pricing is.  For example the XC6SLX150-3CSG484C's are ~$40USD new from Xilinx for a lot of 50k.   So you can expect to pay double that for a lot of say 100 from a non-vulture distributor.  Then call/send/post an RFQ with an appropriate target price to various distributors/dealers.  Even the prices quoted on digikey (#2 ranked vulture) aren't the prices they charge if you simply call them.  But no matter where you go, components are a volume game.  I almost shit myself laughing when I read posts in the custom hardware section talking about FPGA pricing with links to single unit pricing (read through the KNC threads with regards to their Mars miner, you'll see a lot of it).

Anyhow, best of luck Menig, hope you get what you're asking.  If not, send me a PM at a later date.

sorry, but if i buy an item for 1BTC (80€) - i calculate the tax for this price ! you could never be sure to get the erupters with a 5$-tax-rating - each day there comes more of this stuff, and not all
tax-officers are so stupid.... but, hey - just calculate as you want - i will do the same for me ;)

Nicely stacked, dont recognice the heatsinks. What brand are these ? What rpm on the fans ?

just wondering if I can mine LTC or PPC with this?

nope.

one Tower sold, two Towers are available. They are on Ebay, too ;)

you can do PPC with them, looks like owner dont know what he has  .. lol

sorry, did only see LTC ;)

Brand on the heatsinks ? Are these orgininal or a ztex clone ?

Dont know the Brand of the Headsinkes, they are delivered together with the Boards ;) as written at different points these are clone-boards, and all Boards are already sold :)

Best regards
Menig