It's hilarious, at 10 cent power you're looking at an ROI of 25 months. I'll be a buyer at under $1k.

What about price of miners?

2 821s on their website for $3600 

I'll pay $3600, for 2 machines.

~9 month ROI in vacuum without a power supply, no thanks. When you guys set the price of these profitability was 25% higher than it was now. Hell, the price of bitcoin was at $14K, now its at $10K. Antminer uses BCH to price the S9, they cost 99% of 1 BCH which right now would be around $1550. I'm sure some fool will buy them, but it won't be me.

Yeah, like I said earlier, I foresee a huge amount of used miners on ebay this summer from people trying to get their money back out of them.

Not by much. Blokforge's price is $3,600 USD without a power supply. Crypto Universe wants EUR 3,425, or $4125 with a power supply and controller. When you add $200 for the same power supply and another $100 for a controller all in if you order from Blokforge its $3,900. About 5.3% cheaper than what they are paying in Europe.

Getting only the machine is slightly better, $3600 at Blokforge and $3800 at Crypto Universe so it would be 5.4% cheaper 

If we get charged $3450 in the US with a PSU it's still pretty high. I'd like to pay at the most $3k.

Bitmain had another batch of S9s this morning. Sold out in 6 minutes at a price of $2320. Although they seem impossible to get, it's a very reasonable price compared to if these were at $4k. At 10 cents per Kw/h you're looking at ~4 month ROI on the S9, the 821 would be 12 months .


I get paying a premium on an Avalon over and Antminer, but the premium to me is paying the same amount of money for both, and getting less TH/s out of the Avalons.

Anyone who pays that kind of money for one of these machines is taking an enormous risk of never being able to get their money out of them. I foresee a flood of used machines hitting the market in the next 6 months from people desperate to get their money back. I’ll pay 3 grand of one of these MAX, anything more is too much of a risk.

I'm pretty sure you could run 721s and 741s on the same controller, you just had to be careful when updating the firmware because it was different for them.

Bitmain's S9 batch that sold out on Dec 19th was priced at $2750, the batch that sold out the other day was at $2340. I would expect the 821s to be priced under 3k, assuming the price of BTC/BCH doesn't go through the roof before the 12th.

That's what I would be worried about. This thing is a joke IMO, looks like a great way to fry your miner.

I think it will be between $2500 and $3000. Bitmain just sold a batch of S9s for ~$2400.

If you read the previous page the rep from Blokforge said it will be posted at random.

I've read great things about the Avalon's reliability and not so great things about Antminer's, but it will vary depending on who you ask. Some people have batch 1 (Q3 16' I believe) S9s still running fine, and others get machines DOA.

In terms of downtime, it's a problem for everyone, not just the "average person". For example, if 5% of your machines arrive broken and you ordered 20 machines then odds are 1 will be DOA, if a farm orders 200 then odds are 10 would be DOA. I guess the bigger problem for the little guy would be if they ordered 2 machines and 1 was broken, versus if a farm ordered 200 and 10 were broken. Little guy's batch is down 50% on mining power versus the farm's which is only down 5%.

Other than reliability the thing I like more about Canaan than Bitmain is that when it comes time to order a large number of machines I can place a bulk order with the manufacturer, versus having to fight with smaller miners to get a piece of the batch. Currently, if you are ordering less than 60 machines you have to go through an authorized reseller. Also I like that Canaan accepts wire transfers and not only BCH like Bitmain does which is bullshit.

My .02 

From what I understand at some point he's posting a link in this thread.

I’m cool with that, thanks for clarifying.

I just got the 821 pre-order email with the date. When will you post the private link on here for the first 10? (Assuming your doing it)

For the electrical capacity questions, I would speak to an electrician as every place is different. If you are doing this out of your home then you won't have access to 3 phase power usually, which isn't a bad thing but you will be limited to how many machines you can run because of a lack of amps. Most homes in the US run off about 120 amps, which means 10 machines would max out your breaker, with NOTHING else running in the house. In order to run more than that many machines you'll need to upgrade your breaker, but IMO you would be better of moving to a commercial location with 3-phase and several hundred amps available.

As for the tax write off situation, again, best you speak to a professional (accountant). I would imagine it would be the same as a company writing off any other computer or server, the depreciation formulas that the IRS accepts are out there. The standard write off time may be longer than the life of a miner, you'll have to do some digging. Also ask about capital gains tax treatment with BTC mining.

The Bitmain claim is being discussed here. I'm not buying the rumors just yet.

https://bitcointalk.org/index.php?topic=2427528.0

With the last batch they announced a time when they would be available, usually they do it on Twitter.