Antminer Z9 Mini Should I Buy it?

[grinbuck]

Yeah so far running rock solid at 750mhz @ 15 KH/s. On the fence about ordering more though.

They've shipped ~ 10,000 units so far - that's 150 MH/s. Total hashrate on the ZCash network is about 650 MH/s. Theoretically speaking, if they manage 10k units per month then in 5 months they double the total hashrate hence halving profits. That's not considering the other coins out there like ZenCash and ZClassic - both of which have much much lower net hashrates as of now (60 MH/s and 25 MH/s).

Not bad for an $850 z9 delivered end August. Specially since I have a $250 discount coupon and dont need PSU's - bringing cost down to about $700 per unit with shipping and customs.

I'm not taking into account the fact that Innosilicon has a 50 KH/s miner that's shipping soon. Much more expensive though. $10,000 for two (under their buy 1 get 1 free scheme).

Anyone able to analyze this better so a calculated buying decision can be taken?

[1715330096]

1715330096

[1715330096]

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[1715330096]

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[roc-noc]

Yeah so far running rock solid at 750mhz @ 15 KH/s. On the fence about ordering more though.

They've shipped ~ 10,000 units so far - that's 150 MH/s. Total hashrate on the ZCash network is about 650 MH/s. Theoretically speaking, if they manage 10k units per month then in 5 months they double the total hashrate hence halving profits. That's not considering the other coins out there like ZenCash and ZClassic - both of which have much much lower net hashrates as of now (60 MH/s and 25 MH/s).

Not bad for an $850 z9 delivered end August. Specially since I have a $250 discount coupon and dont need PSU's - bringing cost down to about $700 per unit with shipping and customs.

I'm not taking into account the fact that Innosilicon has a 50 KH/s miner that's shipping soon. Much more expensive though. $10,000 for two (under their buy 1 get 1 free scheme).

Anyone able to analyze this better so a calculated buying decision can be taken?

I think you nailed it.  Not bad for a Newb. 

The only thing missing is how many of those $850 Z9s do they sell by the end of August.  How big is the second batch.  Another 10K, 20K, 40K, 100K?  That's the part of the equation  that this Newbie is struggling with.

[warrior333]

Yeah, BM have been too clever for their own good.

Unless you get batch 1. You'll only just ROI on batch 2, then be left with a doorstopper. In some cases (see the XMR saga) you don't even get that. When you factor in the hassle and time spent playing fastest finger, shipping + fees, customs faff, warranty returns to China and then maintaining a dedicated noise-proof, power and cooling area for your asics, it's really not worth it at all.

Bitmain has been far too clever indeed if you ask me. They do it subtly and although it isn't as pronounced as the Cryptonight ASIC screw up, they are also playing tricks on Z9 purchasers. Sharing the computations one poster did on the difference in price from Batch 1 ($2000) compared to batch 3 ($850):

Not really. It still doesn't make much sense to screw over batch 1 investors. Here's the math behind it:

$2000-$850 = $1150 <- total difference that you need to make up

Estimated profits (ASIC is OC-ed to 15k sols, conservative)

   1st week of mining: $30 per day * 7 days = $210
   2nd week of mining: $25 per day * 7 days = $175
   3rd week of mining: $20 per day * 7 days = $140
   4th week of mining: $15 per day * 7 days = $105
   5th week of mining: $12.5 per day * 7 days = $87.5
   6th week of mining: $10 per day * 7 days = $70
   7th week of mining: $8 per day * 7 days = $56
+ 8th week of mining: $6 per day * 7 days = $42
-----------------------------------------------------------
Total value mined after 8 weeks (2 months = equal time to receive new batch orders which only cost $850 per Z9 ASIC) = $885.5

You would have earned more if you just waited and bought the $850 version. To be specific you would have $300 ($1150-850) more if you simply buy the latest batch. Fu bitmain.

Good luck to all those who will continue to support Bitmain's products. You are simply selling out your values (by buying from known tricksters) for a slim chance at profits.

You're a storyteller. My Z9 mini now earns 22 + dollars a day. It's no longer 2 week. If you don't understand, don't write nonsense!

[fortozs]

I know its been a very long time since anyone has posted in this thread, but I think it is still very relevant. I am an ASIC n00b. This will be the first ASIC I have ever bought. What has surprised me so far is how little profitability has changed since these were announced. I'm assuming batch 1 was very small. Something tells me batch 2 won't be, and profitability will have a drastic decrease. Still, I see a few assumptions on here that I don't think are true.

1) People assume Bitmain won't ship out miners if they could make more mining.

This may be true, but you have to consider the amount of profit they can make producing these things. Considering the numbers they can release, I can't imagine they would make more mining with these than they can make by selling these, when they can produce them so fast. They may mine to test them and keep changes in difficulty more stable I suppose, but to think they would make more mining than they make pumping out mass-produced hardware with high profit margins seems highly unlikely to me.

2) People assume the difficulty spike will be proportional to the number of new ASIC miners.

In theory this sounds good, but do you really think GPU miners will stick around if they are losing money? For example, if ASIC miners came in and increased network hash rates by 200%, don't you think that the GPU miners would leave equihash, effectively reducing our predictions of difficulty increases?

Obviously, difficulty is going to go through the roof. But by how much depends on how many units will be shipped. I realize that I am taking a big gamble on getting batch 2, but I think it is a fair trade in risk/reward considering how difficulty has so far remained relatively stable. If it's a doorstop, it will be an expensive lesson learned. Still, I wonder if anyone has any reliable methods at determining how big these batches are. Does anyone have any estimates based on anything besides speculation?

[.Bitcoin.talk.]

Yeah, BM have been too clever for their own good.

Unless you get batch 1. You'll only just ROI on batch 2, then be left with a doorstopper. In some cases (see the XMR saga) you don't even get that. When you factor in the hassle and time spent playing fastest finger, shipping + fees, customs faff, warranty returns to China and then maintaining a dedicated noise-proof, power and cooling area for your asics, it's really not worth it at all.

Bitmain has been far too clever indeed if you ask me. They do it subtly and although it isn't as pronounced as the Cryptonight ASIC screw up, they are also playing tricks on Z9 purchasers. Sharing the computations one poster did on the difference in price from Batch 1 ($2000) compared to batch 3 ($850):

Not really. It still doesn't make much sense to screw over batch 1 investors. Here's the math behind it:

$2000-$850 = $1150 <- total difference that you need to make up

Estimated profits (ASIC is OC-ed to 15k sols, conservative)

   1st week of mining: $30 per day * 7 days = $210
   2nd week of mining: $25 per day * 7 days = $175
   3rd week of mining: $20 per day * 7 days = $140
   4th week of mining: $15 per day * 7 days = $105
   5th week of mining: $12.5 per day * 7 days = $87.5
   6th week of mining: $10 per day * 7 days = $70
   7th week of mining: $8 per day * 7 days = $56
+ 8th week of mining: $6 per day * 7 days = $42
-----------------------------------------------------------
Total value mined after 8 weeks (2 months = equal time to receive new batch orders which only cost $850 per Z9 ASIC) = $885.5

You would have earned more if you just waited and bought the $850 version. To be specific you would have $300 ($1150-850) more if you simply buy the latest batch. Fu bitmain.

Good luck to all those who will continue to support Bitmain's products. You are simply selling out your values (by buying from known tricksters) for a slim chance at profits.

You're a storyteller. My Z9 mini now earns 22 + dollars a day. It's no longer 2 week. If you don't understand, don't write nonsense!

Where did you get a Z9 mini before launch?

[Dilerium90]

If we wouldn't see bitcoin growing in 3 times in the near future, then, in my withers, it makes no sense to buy mining equipment in general, otherwise the payback will be a long time.

[Sebahl]

So far I have mined 5.3 ZEC, so I hope I will break even or be close to it before the second batch ships. I bought two more Minis with the coupons and am hopeful, that I will break even soon enough. But if I didn't have the coupons (and free electricity) I would probably not buy the miners right now. I expect the difficulty to at least triple, so 3 Minis will earn as much as 1 Mini right now in a few months.

[BitCoinTa|k]

Hello guys. Tomorrow i will buy Giant X10 but i can afford Z9 Mini too with x10.

Z9 mini has good profit for now but what about future? Should i buy it?

What is hard fork thing btw about bitcoin gold.

İ really need your thoughts thank you.

According Bitmain tweeter they sold approx. 7K mini's. Including other companies, total hash from ASIC may play along 200,000,000sol/s.

So if you have one mini at 10ksol/s and mining Komodo (if ever you want long term income since they will not fork) with currently 3KMD reward per block at 1.32USD each, a profit per day would be

10ksol/s                          1.32USD      1440 blocks
-------------- x 3KMD x ------------ x ------------ = $0.285/day
200,000ksol/s                    KMD           day

This is only my prediction after equihash forks. But still equihash asic for z9 mini is still profitable today (apprx $15/day)

[adamnill]

I am making 1.5 ZEN per day with my Z9.
It's very good profit so far

is it safe buy by from bitmain.com?

[grinbuck]

In theory this sounds good, but do you really think GPU miners will stick around if they are losing money? For example, if ASIC miners came in and increased network hash rates by 200%, don't you think that the GPU miners would leave equihash, effectively reducing our predictions of difficulty increases?

Great point. One that didn't cross my mind. Plus the fact that the crypto market may rebound, increasing profitability, may just justify getting a mini for $850 at this point in time...

[hiroshidw]

I believe this will be profitable for few months yet, cause of low power cost

[Heno1974]

bought from z9 mini asian-miner.com.
20/08/2018 paid btc
still under processing
they do not respond to email.
I do not recommend buying asian-miner.com