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Topic: [NEW] Bitmain Announces Antminer A3 - page 61. (Read 22431 times)

newbie
Activity: 42
Merit: 0
January 18, 2018, 01:36:39 AM
Will these work off 110v 20a with a3 psu or needs 220v?
member
Activity: 98
Merit: 12
January 18, 2018, 01:34:05 AM
they know what to do
bitshit sold me 10 pcs d3 useless

What did you pay for the d3's when they were released?  I've only ever seen them on the secondary market recently.
i bought 1 of them 5000$

Ouch!
member
Activity: 112
Merit: 10
January 18, 2018, 01:32:20 AM
This miner is only for risk loving speculators.

Maybe if your miner delivered in 2 weeks it will be fine but..
for late owners; I highly doubt owners will see roi in less than 8-12 months.
bitshit if they know u can have money back in 6 days they will not sell it
member
Activity: 112
Merit: 10
January 18, 2018, 01:30:45 AM
they know what to do
bitshit sold me 10 pcs d3 useless

What did you pay for the d3's when they were released?  I've only ever seen them on the secondary market recently.
i bought 1 of them 5000$
hero member
Activity: 881
Merit: 502
January 18, 2018, 01:25:05 AM
This miner is only for risk loving speculators.

Maybe if your miner delivered in 2 weeks it will be fine but..
for late owners; I highly doubt owners will see roi in less than 8-12 months.
member
Activity: 120
Merit: 10
January 18, 2018, 01:21:51 AM
People who bought the A3, know what they are doing. Now we will see the outcome of their investment in 5 days.. as China customer will get it within 4 days.
The story is Bitmain is killing all new Asics new players, they reduced the minimum order to 1 and they are shipping quickly and Sia developers aren't happy....
member
Activity: 98
Merit: 12
January 18, 2018, 01:11:09 AM
they know what to do
bitshit sold me 10 pcs d3 useless

What did you pay for the d3's when they were released?  I've only ever seen them on the secondary market recently.
member
Activity: 112
Merit: 10
January 18, 2018, 01:08:53 AM
they know what to do
bitshit sold me 10 pcs d3 useless
newbie
Activity: 25
Merit: 0
January 18, 2018, 01:03:13 AM
looks like they won't have more in stock for the first batch
member
Activity: 98
Merit: 12
January 18, 2018, 12:57:26 AM
I wonder how many they have sold by now
member
Activity: 112
Merit: 10
January 18, 2018, 12:49:53 AM
sc blake 2b not like dash or btc it will loose difficulty faster
roi will be 20 $ in a weak
legendary
Activity: 2172
Merit: 1401
January 18, 2018, 12:41:54 AM
I think those who will make the most money off these are the people selling them on ebay for $7500 each at the moment.  I truly can't believe people are that ignorant to pay $7500 for a miner that in all likely hood will not make 2/3 of that back.

The trick is to get the machine, list it as a 7 day auction, let it mine for 7 days before sending it off, profit!

Yes, but in the time it takes to get miners here in the US how many of those 6000 Chinese units will be online in the next 5-7 days and destroying the current diff of the coin.  What will it be in 3 weeks when the miner is received Sad  What will the prices on ebay be going for then...  3k? 

If anyone believes they are going to be making more than ~30 a day after these ship out, you are quite delusional. Its going to be fun watching the diff charts on this over the next week  Cool
newbie
Activity: 56
Merit: 0
January 18, 2018, 12:36:20 AM
Not only aren't they proved, but it it is real, they won't be shipping for a couple of months probably
full member
Activity: 1179
Merit: 131
January 18, 2018, 12:27:48 AM

It is is good question.  WHY would they make a miner for blake2b?


I asked that a few pages back... seems kind of random. Someone else here suggested maybe its to f--k with the team behind Sia, who is also making miners? Seems petty to spend so much money on miners just to funk with a competitor... but with only ONE coin to mine on this machine, who knows? At least with D3's one could play an Altcoin game and mine a few other random things with it. This is literally a brick once profitability dies, and you don't even get to play with anything else. Just seems weird.

Oh well... they still make $10M selling them.

Its simple really.  First off Obelisk kind of fucked themselves by posting the numbers of pre-orders.  It doesn't take much for Bitmain to look and see that if a few thousand people are willing to pay $1600 to a new company that won't even bring a product to market for 6+ months, then even more people will pay $600 more to get the same performance in 10 days.  Bitmain also has  economies of scale.  All of their miners are essentially the same with different circuit boards in them.  They already have manufacturing and infrastructure in place.  I imagine they could make ASIC miners for most altcoins relatively easily and cheaply, but why bother?  They have been selling the same S9 for what seems like forever, and its going up in price instead of down.
sr. member
Activity: 489
Merit: 253
January 18, 2018, 12:26:58 AM

Those guys arent proven yet, their btc miner have dubious specs too.
member
Activity: 98
Merit: 12
January 18, 2018, 12:22:22 AM
I think those who will make the most money off these are the people selling them on ebay for $7500 each at the moment.  I truly can't believe people are that ignorant to pay $7500 for a miner that in all likely hood will not make 2/3 of that back.

The trick is to get the machine, list it as a 7 day auction, let it mine for 7 days before sending it off, profit!

Yes, but in the time it takes to get miners here in the US how many of those 6000 Chinese units will be online in the next 5-7 days and destroying the current diff of the coin.  What will it be in 3 weeks when the miner is received Sad  What will the prices on ebay be going for then...  3k? 
full member
Activity: 1179
Merit: 131
January 18, 2018, 12:19:09 AM
I think those who will make the most money off these are the people selling them on ebay for $7500 each at the moment.  I truly can't believe people are that ignorant to pay $7500 for a miner that in all likely hood will not make 2/3 of that back.

The trick is to get the machine, list it as a 7 day auction, let it mine for 7 days before sending it off, profit!
newbie
Activity: 56
Merit: 0
January 18, 2018, 12:09:07 AM
Official response from the SIA [SC] Dev Team

"Bitmain has announced an ASIC miner for Sia. This has made a lot of people uneasy, especially those who preordered Obelisk units. So I'll first address the Obelisk units in isolation. Though we don't have the full chips back yet, the chips are in production and we have our final simulations. We can confidently state that the bitmain unit is far less energy efficient, costs more money, and is an objectively worse miner than the SC1. So people who ordered Obelisk units will still be receiving hardware of substantial value.

As a developer, Bitmain moving into the Sia space makes me uneasy. Bitmain has historically been extremely greedy, and very willing to sacrifice the well being of the community, of their customers, and of the ecosystem if it means they can make a couple of extra dollars. The biggest way this has manifested for altcoins is that they will over-sell hardware. When a ton of miners suddenly join the network, the difficulty adjusts. If too many miners join the network, nobody is able to make any money, and everyone eats a loss on their hardware purchase.

Bitmain has no qualms about overselling their units to buyers. They take massive margins on their hardware (>50%) and make more money than the total block reward at the expense of their customers. They over-saturate the mining market in a way that hurts their buyers. I think we will see this with Sia. Bitmain will sell more units than the Sia ecosystem can sustain, and many people end up with large losses. Bitmain will not end up with losses, because they were paid up-front with non-refundable money.

Bitmain also has a history of doing things like mining empty blocks, and like refusing to activate soft-forks that are beneficial to the network. They were openly hostile to the Bhttps://bitcointalk.org/index.php?topic=2769785.120itcoin-core developers, and actively blocked the activation of a very valuable network feature (Segwit).

We, the dev team, are not happy that Bitmain has made an ASIC for Sia. We are not happy that many Sia supporters are at risk of losing money by buying these miners (from over-saturation), and we are not happy that Bitmain may choose to interfere with our network. This is not a commentary on general ASIC companies, this is a commentary on Bitmain specifically.

We did add an extra feature to the SC1 unit that would allow us to invalidate the Bitmain hardware without invalidating the SC1. The community would need to choose to adopt a soft-fork (it's not something we could just magically activate, we have to change the hashing algorithm slightly), and then we could get rid of this cycle of Bitmain hardware. Of course, they could just create another round of hardware (likely taking ~3 months). And, it would hurt Bitmain customers more than it would hurt Bitmain. Bitmain has already sold around $20 million of non-refundable hardware. They have made their profit, and a soft-fork wouldn't change that.

As much as I would like to punch Bitmain in the nose, I don't think a soft-fork achieves what we want. If the hardware is used to harm the Sia network, either by doing double spends, rejecting soft forks, mining empty blocks, we will invalidate it without hesitation. But for the time being, I think the best thing to do is to advise people not to buy the Bitmain hardware (to protect yourself from the oversaturation that Bitmain tries to create), and then to watch and wait, and respond more if it appears that the network is under attack. Overall though, I do not think Sia is in trouble.

I am looking forward to the thoughts from the community."


I would prefer Obelisk than Bitmain as Bitmain is shady and greedy and is trying to flood the market to make their greedy profit. Not to mention, China is closing their mining place and they are moving to Switzerland to start their new mining business. So I guess its a quick and dirty way to make some quick money or unsuspecting customers. Please beware.
In the mean time, when you are suppose to get the Obelist miners? In a month or two? Thanks
Obelisk shipping is due in July/August, so make that 6+ months.
sr. member
Activity: 491
Merit: 250
January 18, 2018, 12:08:37 AM
Do you still think it is profitable investment on an A3?
Not really. Try this...Dont forget there is at least 500 machines running like this..So profitability will be divided between 500 people more.

https://whattomine.com/coins/161-sc-blake-2b?utf8=%E2%9C%93&hr=815000.0&d_enabled=true&d=9.21496163362753e%2B18&p=1300.0&fee=0.0&cost=0.15&hcost=2500.0&commit=Calculate
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