Bitmain Antminer U2 - page 7. | Bitcointalksearch.org

TheRealSteve

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FUN > ROI

Quote from: xingqiaoyin on March 12, 2014, 01:13:49 AM

1. Birthday gift
2a. Btc introduction gift
2b. Souvenir
3. At workplace or cafe who let you use outlet you could basically use your laptop to mine and not paying for electricity.

1. Why not
2. I'd look into the iMiner instead. It's cheaper and a more gift-friendly package (same package as a regular USB stick, so you can still plug in a mouse next to it). I did a teardown of one a while back. Of course the downside is that they're pretty slow - but since neither would make the user rich..
3. If you're taking advantage of electricity offered to you, there's more powerful miners one could carry around and use. I guess the main issue in the case of a cafe would be noise generated, so it would still have to be a passively cooled miner, like a twinfury/bi�•fury or an underclocked mini miner.

xingqiaoyin

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Random thoughts
Birthday gift
Btc introduction gift
Souvenir
At workplace or cafe who let you use outlet you could basically use your laptop to mine and not paying for electricity.

xspeed9190

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Merit: 100

I was looking at these but honestly what is the point if it will never reach ROI? Why buy it? Even OC to 2.4Gh/s still is like 200+ days at current diff to barely pay for itself. Please if I am missing something enlighten me.

TheRealSteve

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FUN > ROI

Quote from: flounderella on March 11, 2014, 05:18:22 PM

http://www.ebay.com/itm/BITMAIN-ANTMINER-U2-2Gh-s-ASIC-Bitcoin-Miner-BTC-USB-Stick-USA-/291098149399

But I get your point. He's probably not making any actual sales at that price.

Well, you can check sales history - seems plenty sold at that price point. Of course it could all be sockpuppet account purchases, but it doesn't really have to be. While it's cheaper to get them out of the far east, you have to navigate the scammer waters, wait for shipping to commence, then wait for it to actually get there, then if there's any issues have to take it back to them, etc. To some people, having a 'local' seller with product in hand is worth the extra $. That, and there's plenty of naive people who simply don't know any better, just heart about Bitcoin and mining on the news and decided to hit up ebay/amazon for 'one of them miner things'.

flounderella

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Quote from: mikerbiker6 on March 11, 2014, 01:24:27 PM

Quote from: flounderella on March 11, 2014, 09:36:50 AM

Quote from: TheRealSteve on March 11, 2014, 08:51:30 AM

I think buying any StickMiner thinking you'd make a monetary positive ROI would be silly at best.. unless you can get them for very cheap and don't have to pay for electricity and don't mind running them for a very, very long time, that is

I guess if you buy from bitmain directly, its not too bad, $17 a piece. One can probably sell 480 of them on Ebay for 40 a piece too :p and play with the rest

Sell them for 40, no way.
You will be stuck with some 400 miners. Be my guest to try it out.

Like this guy:
http://www.ebay.com/itm/BITMAIN-ANTMINER-U2-2Gh-s-ASIC-Bitcoin-Miner-BTC-USB-Stick-USA-/291098149399

But I get your point. He's probably not making any actual sales at that price.

Bombadil

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Most local sellers here sell them off with extras like USB hubs at a certain amount and help with the setup, mostly trough remote desktop. And they seem to be very profitable that way.

mikerbiker6

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Quote from: flounderella on March 11, 2014, 09:36:50 AM

Quote from: TheRealSteve on March 11, 2014, 08:51:30 AM

I think buying any StickMiner thinking you'd make a monetary positive ROI would be silly at best.. unless you can get them for very cheap and don't have to pay for electricity and don't mind running them for a very, very long time, that is

I guess if you buy from bitmain directly, its not too bad, $17 a piece. One can probably sell 480 of them on Ebay for 40 a piece too :p and play with the rest

Sell them for 40, no way.
You will be stuck with some 400 miners. Be my guest to try it out.

Bombadil

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Activity: 644

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Quote from: flounderella on March 11, 2014, 09:37:24 AM

What price are you getting for them?

Bought them with this groupbuy. So at 0.415BTC for 10 antminers + shipping.

flounderella

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Quote from: Bombadil on March 11, 2014, 08:59:36 AM

They're just for fun, but if you manage to mine some satoshi's, and the price does another big pump, you might just get your ROI faster.
Actually, SHA256 mining is a new kind of risky speculating Wink

But overall, I'd love to have them for plain fun. Do some tweaks here, change the resistors there, ... and look at the results of your overclock. The software supports up to 4GH/s, I would like to get to that impossible number Grin

Just preordered 10, can't wait for them to arrive.

What price are you getting for them?

flounderella

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Quote from: TheRealSteve on March 11, 2014, 08:51:30 AM

I think buying any StickMiner thinking you'd make a monetary positive ROI would be silly at best.. unless you can get them for very cheap and don't have to pay for electricity and don't mind running them for a very, very long time, that is

I guess if you buy from bitmain directly, its not too bad, $17 a piece. One can probably sell 480 of them on Ebay for 40 a piece too :p and play with the rest

Bombadil

hero member

Activity: 644

Merit: 500

They're just for fun, but if you manage to mine some satoshi's, and the price does another big pump, you might just get your ROI faster.
Actually, SHA256 mining is a new kind of risky speculating Wink

But overall, I'd love to have them for plain fun. Do some tweaks here, change the resistors there, ... and look at the results of your overclock. The software supports up to 4GH/s, I would like to get to that impossible number Grin

Just preordered 10, can't wait for them to arrive.

TheRealSteve

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Activity: 686

Merit: 500

FUN > ROI

I think buying any StickMiner thinking you'd make a monetary positive ROI would be silly at best.. unless you can get them for very cheap and don't have to pay for electricity and don't mind running them for a very, very long time, that is

flounderella

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Is anyone even considering buying these? 20 of these is about 1BTC and packs just 60GH when OC-ed. It will be months before ROI and by then difficulty would already be higher, especially if the mythical monarchs and other pre-ordered miners ever do ship out

Buchi-88

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Anyone knows about the voltage?

Is by the miner the Stock 0,8 V or a little bit more?

regards

-ck

legendary

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Ruu \o/

Quote from: gmaxwell on March 06, 2014, 12:53:58 AM

Quote from: bobsag3 on March 06, 2014, 12:15:59 AM

Ive got a few boxes of these on hand.... pretty nice.

Of the U2s? hows the software support? do they use the same software as the prior versions?

Theoretically they're supposed to run identical software to the U1s which cgminer has full support for.

Quote from: FlensGold on March 07, 2014, 04:04:29 PM

Does anyone know how to overclock them? It seems it works different than the U1, at least I am not able to OC them yet.

If they run the same as the U1 then it would take the same cgminer parameter to overclock it, i.e. adding '--anu-freq 250' would make them run at 2GH

FlensGold

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Does anyone know how to overclock them? It seems it works different than the U1, at least I am not able to OC them yet.

gmaxwell

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Quote from: bobsag3 on March 06, 2014, 12:15:59 AM

Ive got a few boxes of these on hand.... pretty nice.

Of the U2s? hows the software support? do they use the same software as the prior versions?

bobsag3

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Owner, Minersource.net

Ive got a few boxes of these on hand.... pretty nice.

pidge

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I've got a New Zealand + Australia Group Buy up for the U2.

TheRealSteve

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FUN > ROI

Yeah, though it looks like mostly caps. The fat and small one to the USB port side of U5 seem to be hooked up to U5, so maybe things coming out of it were a little unstable and its input needed better filtering. Any software-side overclocking would probably just be in the firmware, in which case I'm not sure why it wouldn't be possible to do the same on the U1..except for that small heatsink being inadequate

Will just have to await more tech info.

Topic: Bitmain Antminer U2 - page 7. (Read 26263 times)