Topic: [ANN] Sfards:SF100, the first 28nm Dual-Mode Miner is accepting pre-order now - page 22. (Read 129801 times)

https://bitcointalksearch.org/topic/m.11844685

Do the chips live up to the stated specs?

Lol, nice where can I get one?

Here is one in "action"

Not aware of them in any USA seller other then Zoomhash. And like everyone else I have not seen a photo of one in action.

So besides the Zoomhash website, is there any other place to buy these miners at a more fair price?

Yeah only stock photos out there too. This is an odd one.

I keep thinking the same thing. The first batch has to be getting done soon if not done already.

I want one myself, still cant believe the price zoomhash set.  I want to see them in wild to see prices and if they do go down.

That's Great target price but they won't sell them for that we Polly will never see one for that if it ever sells .


greedy bastard sorry could not resist saying it i had to > warn me I don't care but I just had to .

If your reply is directed at me, I suggest you re-read my response.  I clearly state the following:


I even bolded the part you claim I didn't include.

Of course you have to add in the cost of a PSU if you don't already have one.  I didn't include it because as I wrote I already have a number of PSUs around that have been driving S3s.

Your estimate does not appear to take the block reward halving into account that's due later this month for Litecoin. Like most such estimates I've ever seen it also doesn't take difficulty increase into account, though that factor can be hard to predict accurately.

 Don't forget to add the cost of a good power supply to run the thing. I would NOT run it on a 1000 watt PS, that's WAY too close to the "rated" power draw - though in fairness the Gridseed blades were "rated" at 70+Watts per side at stock clock, but mine all commonly ate a LOT less power than that.


 I just have to wonder if Sfards is going to try to push a lot of them at the current crazy high price, or if they're going to get smart sooner and start dropping them to a much more reasonable price before halvings and difficulty increases kill ANY chance at ROI on the things.

That article doesn't call them out, so much as it just states the obvious.  Sure would have been nice for them to provide some level of detail other than, "that's too expensive".

Let's say that you were lucky enough to order one at the listed price on the sfards website.  That converts to just about $1290 today.  Assuming as well that the listed speeds are obtained in dual mining mode (1.7TH/s for SHA256 and 54MH/s for Scrypt), if you had one of these in your hands mining right now:

Expected BTC per day: 0.01635 ($4.61)
Expected LTC per day: 1.171 ($5.08)

Given current exchange rates, that's $9.69 a day before any power costs.  You're looking at 133 days before you make your initial investment back assuming everything remained constant, which of course it won't since BTC is looking at about a 4% difficulty increase in a few days and LTC is about to go from 50 to 25 coins per block.

At 970W at the wall in dual mining mode, and with $0.10 power costs, you're looking at $2.33 a day to run this thing.

All in all I like the look of the product, and I've got plenty of PSUs around that are still driving S3s.  Unfortunately, at the price they're being offered, the chances of me ordering are slim to none.  This would be far more attractive at the $800 mark.  Too bad.  I would have loved to have a few of these to replace my aged S3s.

I'm surprised we haven't had any photos or reports of these "in the wild" yet.

I still think 599 is a great target price


This article really calls them out on the way they have priced this http://cryptomining-blog.com/5284-sfards-sf100-asics-coming-soon-but-too-expensive/

Yeah this whole price thread is kinda a moot question if the price they are gonna sell them out approaches 1195 bucks or some such...You'd be hard pressed to pay 600 bucks for them at best w/o shipping imho for the risk of still having no ROI on the units and even more so if you planned to mine LTC as your pow/scrypt option esp if you wanted to mine LTC and halving coming up

again was just a gimmick for IPO money ..to tout their likely data hall with their chips and get some fools to pick up some units ..which is suspect they wanted
to use as proof of concept for IPO $$ and for others who may want bulk chips someday

now you have to ask is what is the likelyhood at 4 bucks or above LTC and the rest of the pow/scrypt miner universe of ANYONE ELSE making another run of chips
for pow/scrypt alt asics....so far the silence is 'deafening' on such a project and by that I mean JUST POW/SCRYPT ASIC CHIPS units data hall only or the more unlikely
home versions ..ie SOMETHING BY SOMEBODY??? not just this 'gimmick' version for pow/scrypt asic stuff by sfards

the whole pow scrypt/asic coin universe may have gone the way of GPU mining if that is the case

 Take one of the A2 60Mhz miniTerminators, add a SP20E - and you have roughly equal hashrate. Somewhat more LTC, slightly less BTC.

 The price is nowhere near comparable, though I do grant the electric usage would be lower.


 Having crunched the numbers WITH ACCOUNTING FOR THE LITECOIN HALFING REAL SOON (or just happened) and the Bitcoin halfing next summer, I would BET these things will never ROI at $1199 for anyone that has to pay more than a couple cents/KWH for their electric, and FORGET IT NOT EVEN CLOSE at $1999.

 I've also been very UNimpressed with the longevity out of Gridseed built products, the chips seem to be OK but their board-level designs to date have been very poorly designed and built.

http://zoomhash.com/collections/bitcoin-asics/products/sf100-btc-ltc-dual-miner-ships-within-5-days-only-5-in-stock

It does both SHa256 and Script they think because it can do both it is worth 1299 to 2k . and the Sad part is they will get it !!!!!. but that is how it all works .

Maybe if it did 110 MH and 1.7 TH  maybe then but then they would want more just because it would do 110 mH and the A2 still sells for 1399 or less for the 110 MH One.

 i bet they base it off other miner prices not the coins.

 oyea what it cost to DEV it witch is not what they claim that's another excuse to make it higher . other wise prove me wrong on the cost to dev and make it .That like telling us  the US is broke when we had our shut down last year if we weren't lied to we lost 21 billion during that shut down and so were not broke.

 same here . !!! Just a excuse to be greedy.


MY question is


HAS ANYONE GOT One of these yet ? .

When will be official out?

I personally refuse to pay almost double from a reseller.   I have voiced many times I want to do one so I can get back into scrypt.  

But I can wait till officially in stock.   No possible way I mine 800 dollars between when they get it to me and when they officially get them in stock.

What you mean price is 2000 dollars per unit at 54 MHz?