Bitcoin Forum

Hi, i'm thinking about selling my Sfards SF100 ( http://sfards.com/pro/miner )
It does a solid 1.500 Gh/s to mine BTC and 51 Mh/s to mine LTC, draining 985w (tested with an Kill-O-Watt)
The BTC is draining 770w, so it's doing 0.51 w/Ghs
The LTC is draining 220w, so it's doing 4.31 w/Mhs, and is one of the best of the market right now.

I would like to sell it for 1.000€ in BTC + shipping, if you are interested, please, send me a PM.
NOTE: The PSU is not included, but we can make an arrange if you want (is a 80+Platinium 1200w).

Here are some pictures:

NOTE: The picture is turn 90º (i don'w know why), the miner is vertically put, the air flows from down to up.
http://i67.tinypic.com/2mzfyap.jpg

http://i67.tinypic.com/1685zrt.jpg

And here is the pool side. There is only this miner hashing on this account:

SHA-256 Bitcoin hashrate:
http://i65.tinypic.com/1537fwl.jpg

Scrypt Litecoin hashrate:
http://i68.tinypic.com/jt1n37.jpg

Here you can see what can produce the miner with one day.

Wow! This is a very rare miner, not many people actually own one. Good luck with sale.

bump!

according to my calculation this miner barely makes 0.012 btc a day so it will take 200+ days to just break even. 3.3btc is unrealistic. i think 1.2 is a fair price. anyway the only valuable thing on this miner is scrypt, the rest is just burden.

Anybody buying this will be buying it for scrypt hash power. The sha256 is just extra. But I'm fairly certain you can shut off the sha256 functionality and mine only Scrypt. 51 mh/s @ 220 watts probably makes this the best scrypt miner currently available anywhere in the world, at least in terms of efficiency.

That said 3.3 is still too high. I've got a Gridseed G-Black making about half the power at 26 mh/s and I would consider myself lucky if I got 0.4 BTC for it

I am curious though...how did the OP acquire this miner? I was trying for a long time to buy one in the states and nobody had one to sell.

Hi, i bought it from a reseller, used, from china, some months ago. You can send me an offer by PM if you want.
As you say, yo can mine only with the scrypt mode, and them it is a very good miner.

Hmm, I may be interested in this. Could you do me a favor and calculate the shipping costs to our shipping PO box address (you have it I know for sure)?

come again? 0.012btc a day on 1.5Th/s?

according to my calculation, it would generate 0.0067 BTC per day, so it will take 400+ days, unless I am missing something and the difficulty has changed so drastically in the 2 days since this has been posted.

oh yes - bump, so that my post adds value :)

You also get 50MH scrypt generating approximately the same income as the BTC side

It's greatest value is on the scrypt side, very eficient  ;)
The btc side is like 1,5 antminer S5, but it can be more eficient than the s5, but i never tested it, yet.

Can it do both simultaneously? How is that even possible (not that I doubt an owner who has tried it, just wondering how they manage it)?

Well, i really don't know how it works, but it works!
I think the chip have some subprocessors doing sha-256 and some more doing scrypt; i think if sfards wants, they can manufacture one of the best scrypt miner with all subprocessors doing only crypt. The documentation is: https://github.com/sfards

And here is a pic of the simple manage system:

http://i65.tinypic.com/fxsf48.png

PS: If you leave one of the pools empty, then the miner will only hash the other one.

I'd be interested but at a much better price, sorry.

Me too.. It looks clean and nice but can not you make a bit discount on this?

Send me a PM with your offer...

50Mh/s in scrypt really isn't that much. I think I had a GPU farm and had like 10Mh/s about 2 years ago, now I hardly think it makes anything.

It worth it for the low efficiency 1.5Th/s, its better and probabily quieter then an S5 but at this price you might as well get an S7.

Scrypt is more stable than sha256, there is not the jumps with the diff at that side ;)

Yes but currently it only pays $1 a day to mine Scrypt. SHA256 makes like $2.50 so around $4 a day so ROI is like 300 days.

I offer 2BTC incl. shipping (EU).

It's too low... Sorry...

bump
changed price

bump

Hi what country you are ?
The new price?

Spain (Postal code 07714 - Mahon)

The price is on first page  :D

Ok thanks

bump

Wow, these actually exist? Wonder how many of them shipped ever..

It is a rare miner; It does x1.25 antminer s5 and x0.6 knc titan cube...

Would you be open to shipping to the US?

if you pay the shipping cost, there is no problem. If you give me your postal code and city i can see the cost.