What are your top worries when buying a miner?

What do you think about when you get a miner? 1. The overall cost. 2. The hash rate. 3. The brand name. 4. Anything else (feel free to share your thoughts)

As a European Citizen I care the most about energy consumption, because this will be my main cost factor. It is not too important how much I pay in the first place for the miner since I will quickly have paid more money in power than the price reduction for a inefficient miner.

Durability and longevity. This means using the latest industry standard design and technology. Metal backed circuit board, wettable flank ASIC, bolt on Heatsinks, etc.

Going with what @MinerMEDIC said. I have fixed cost power so it's better for me to have a miner that will last forever, then the latest & fastest that dies after 18 months. I have stuff running that if WAY past being able to generate any BTC if power was a concern. Also, as a side note 110V power would be nice. Yes, I know the rest of the world uses 220 and building for the little bit that uses 110 is probably not worth it. But not having stuff that can run on 110V or lower amps for the rest of the world does limit some small home / hobby miner sales. -Dave

My power cost is such that I can not lose money. Except if:  gear dies. Gear is never delivered. gear is stolen. So a 38 watt per th is better than a 29 watt per th if the 38 watt gear never breaks. IE:  an avalon 1246 87 th at 38 watts a th is better for me than a s19 110th at 29 watts a th.

As Philipma said, is one of the main reasons I stopped using Bitmain miners after batch-25 of the s9 series. Just too many hash boards dying. Up to the s9 they were much much more reliable. Switched to the Avalon's starting with a couple 721's and never looked back. Out of several dozen of the Avalon miners over the years only 1 failure and that was the fan on 741 - which even after 2 years Canaan replaced no-charge. These days it seems that the PSU's are the main failure area und ja, Bitmain has the same issue (along with other problem areas) as do the Whatminers.

That's true. The electricity costs more than ever before

Which does kind of loop back to my low power QUIET mining comment. 3 or 4TH at a couple of hundred watts to act as a small space heater. 10TH as a slightly larger space heater. You can still make them dead quiet if built properly with modern chips. Bitmains R4 came out 6 years ago and did 8.5TH and 850W What can you build today that will keep my office warm or the back bedroom of my condo without blowing out my ears? -Dave

120V Power would be fantastic - So many miners are built to run on 3000+ Watts and require 220V+ Electricity. Scale them down! Same chips - less or smaller hashboards, smaller form factor... I understand that it is easier from an electrical engineering stand-point to design something for the most "ideal" electrical input. However, North America (the USA especially) is a massive, potential, market and there are VERY few companies taking advantage of the, nearly, untapped potential that resides here. That's my 2 sats anyway.... Aside from that - I personally try to seek out build quality and products that will stand up to the test of time.

If someone care about the price, just visit here, it is probably one of the best prices on the market: A1246-93T: https://shop.canaan.io/products/st-avalon-miner-a1246-93t-3420w?DIST=REVF A1246-90T: https://shop.canaan.io/products/st-avalon-miner-a1246-90t-3420w?DIST=REVF A1166Pro-81T: https://shop.canaan.io/products/st-avalon-miner-a1166-pro-81t-3400w?DIST=REVF All of these are from canaan offical shop and shipping by canaan directly.

Well, don't forget that those prices ignore the taxes you may have to pay on top of that, if you ship them from china to a country that requires you to pay those rather large extra taxes.

Sorry for ot but i see you have alot of avalons and i have my eye on A1166pro series. Do you have any of those and would you recommend them?

They are not shipping everything from China, they have miners in stock in the US and other countries that they ship from. Not saying that there are no other taxes involved and depending on from where to where the amounts could still be large. But they seem to be trying to save customers some money. -Dave

I have a1166 it works fine , if you are usa based this one is good https://shop.canaan.io/products/avalon-miner-a1166-pro-81t-3400w?VariantsId=10012 decent price stable gear good luck with your mining I hope that you do well with your choice of gear. My partners and I will be getting more of them soon.

[/quote] I have a1166 it works fine , if you are usa based this one is good https://shop.canaan.io/products/avalon-miner-a1166-pro-81t-3400w?VariantsId=10012 decent price stable gear good luck with your mining I hope that you do well with your choice of gear. My partners and I will be getting more of them soon. [/quote] Thanks for voting for us

Hello, could you please send us an Email at customerservice@canaan.io with your address? Our online shop team wants to send you a gift

Email sent at 3:42p EST Thank you very much, it will be interesting to see what it is

Yeah, we have confirmed, just wait patiently

1. Run-time without needing to be repaired 2. Software Customization 3. Price I would like to see more single hash board BTC miners, and updates that don't brick your control board. I don't know anything about manufacturing but letting customers fix their own hardware for common points of failure and giving them the information and parts to do so doesn't seem like a bad thing to me.

my criteria to buy a miner machine: 1. reliable for long running. 2. technical transparency on hardware and software. 3. repairable and good service. 4. low price. 5. less power consume.