Bitcoin Forum

hai everyone

can anyone answer me?

1.    is  butterflylabs is now properly delivering this  BitForce SHA256 Single machine? or is it a scam? please help

2.   if i buy this can i use this machine in mining pools or if i have to use  it myself for generating blocks    [ if so please explain its working and how to do initial settings with it]

3. is it profitable to use this after the reduction in bitcoins/block from next month ?

1) Not yet.
2) You will be able to use it in pools.
3) Yes, it is still profitable.  My estimate is a breakeven point of about 6 months if put on preorder today.

Hi,

Out of curiosity how are you estimating that.  I realize that it is impossible to be spot on without knowing how many units have been ordered or the delivery times (or even what Butterfly labs competition are offering). 

I have been trying to do my own estimate, I was just wondering if you had a better source of information that I could look at.

Butterfly Labs says that 20,000 chips are enough to fulfill all current preorders.  That means they have less than 150TH/s of preorders (at the time of that statement).  They are the largest sellers according to every piece of information I have seen thus far, so I estimate there is currently 200-300TH/s of preorders across all ASIC vendors.  Even at 300TH/s, and including the 25BTC reward drop, ASIC devices would still pay for themselves within 6 months.

Of course, that's not including any additional orders placed and fulfilled within that 6 month time period, which would inevitably also affect ROI.  Still, I believe it is a happy future for investing in ASICs at this moment.

I could be wrong.

I think tminer is asking about the current Single, not the ASIC.

Ask and you will recieve!  That is a vital bit of information I was lacking.

Dont suppose you have where you found it?  I will try to find it myself but I am lazy  :P .

It's either in a Bitcoin Magazine article or at butterfly labs' forum... can't remember which.

yes u are correct, i am asking about Single, not the  asic.  is butterflylabs shipping this product properly now, or scamming people?

this is the product i am talking about. see below. and in their site they say  "Now available:". but order now button goes to a pre-order link!!!!

http://butterflylabs.com/wp-content/uploads/2011/11/BFL-Single_Enclosure.png http://butterflylabs.com/wp-content/uploads/2011/11/BFL-BitForce-PCB-diagonal1-300x174.png

Three wildcards that can mess up the math are:

1) The reward drop might affect the exchange rate.

2) The reward drop might cause some existing miners to stop mining.

3) The difficulty increase may cause some existing miners to stop mining.

Personally, I don't think these three factors will be all that significant, so I think your reasoning is about as good a prediction as it is possible to make.

yea i think it makes perfect sense to have some expectation for the exchange rate to increase when the reward splits.

According to this (https://forums.butterflylabs.com/entry.php/43-Just-to-Be-Clear) they are shipping FPGA (BitForce SHA256 Single) orders on time.

for more information you can write them an email at office@butterflylabs.com just keep in mind they are not very fast with replies ;)