Bitcoin Forum

I see a 14TH at new egg for 439$ . Is there a better place I should buy, looking for reliability and honest vendors that's why I was thinking Newegg. I'm debating bidding on eBay though.

Love to hear your thoughts on used s9 pricing and availability Thank you. Cheers.





https://www.newegg.com/p/0X6-09B7-01HD1?Description=s9%20antminer&cm_re=s9_antminer-_-0X6-09B7-01HD1-_-Product

You probably should not buy a Bitmain S9 unless you have free power, or you think BTC price will go to > $100k this year.

According to this calculator https://www.mycryptobuddy.com/BitcoinMiningCalculator
You can reach the ROI after 1yr and 9 months. If you can get cheaper used or 2nd hand ASIC miner you can get ROI fast.

Use this tool to find the ASIC miner below then set it to 0 power cost just sort them with the algo and profitability.

- https://www.asicminervalue.com/

Or try to contact offordscott (https://bitcointalk.org/index.php?action=profile;u=1449095) for a used miner at a cheaper price. He sells an Antminer s9 before for $85 each (https://bitcointalk.org/index.php?topic=5138318.520) which is way cheaper than your source.

85$ is exactly what I’m looking for if they work! Why couldn’t I find him on google, seems to good to be true.

If you read the posted link above it was posted 2 years ago so it means there is a possibility that miner are sold out and that time the price of Bitcoin is around $9k compared on the price today so it possible the prices are changed.
However try to contact him and maybe he can able to give you some other source with cheaper price than $439 you can maybe get them for around $150 or around $200

Current prices in China:
S9K 129$
S9 144$
You can find a reliable supplier to buy, provide test video and SN code before buying

First off are you USA based?

Ebay is okay get an s9I or an s9J or a s9 do not get an s9k

https://www.ebay.com/itm/203858035995? good seller but  a bit pricey


https://www.ebay.com/itm/175281849399? good seller but a bit pricey

look at auctions you may get a psu and an s9 for 200-220 if lucky

the reason they are not cheaper is they earn $1.25 pre power.

many have free power limited amounts but enough to run 1 s9 So 200 x 1.25 = 250 which means they pay off in 200 days if you are free power.

You will only find scammers if your target price is 85$ for an S9, the average price for S9 is almost always it's monthly profit (before the power bill) * 3, right now it nets about 45$ so you are looking at about $135, but that's usually with an OEM psu, for APW3 you need to add 20-30$, to get the i or j version you are also looking to add a few tens of dollars on top, this has been the average way of pricing S9 since 2018.

If your order is large enough, you might get a bit more discount, also, the x3 figure drops a bit when it's a bear market and people have less desire to buy gears, and it goes up a bit when everyone is fomoing, but you can use it as a solid average, anyone selling far below that price is likely a scammer, anyone selling way above the price is just too expenisve.

Best prices I’ve found are on eBay. I’ve seen  200$-300$, seems to be going rate. The s9 are still trading and in demand like the above poster stated.

I correctly understood that you have very cheap or free electricity? Start searching for these asics in your country or nearby.

Now about 100-150$

in the buy it now section
there are no s9s with a psu on usa ebay for 100-150

for auctions they may be 150 but the auction has not ended.

sometimes you can get a good auction price.

https://www.ebay.com/itm/314008542257? 209 free shipping and a psu 2 hours left to auction end.

https://www.ebay.com/itm/155010349130? 155 free shipping and a psu 5 hours left to auction end.

sellers may be good.



edit:

the first one went for 212+19= 231 which is decent if you have free power.

Saw used S9K at 85 USD from AKMINERS (shipping on top)

Be careful dealing with AKminers they are bad sellers many people are complaining and being scammed by that seller.
Also, some people receive broken units so better stay away from them.

If you are looking for cheap units I suggest you contact offordscott (https://bitcointalk.org/index.php?action=profile;u=1449095)
Which is way more trusted than Akminers.

Wow first time i heard that about them. I thought they were legit, they are a trusted vendor on asicminervalue.com

I can't vouch nor claim AKMINER is a scam, but asicminervalue.com isn't reliable when it comes to finding trusted vendors, with that said, S9k is NOT S9, not S9j, and not S9i, S9k unlike the other three models mentioned is a piece of junk and it's always cheaper to buy, $85 for an S9k sounds about right, you can easily find them at that price, but should anyone buy them? my answer is NO.

Anyway, if someone is looking for a large quantity (100 or more) I can help source them in China, I am not interested in doing so with smaller quantities tho.

Also keep in mind that there is a HUGE difference between buying farm stock as is and buying tested and cleaned miners, given how cheap S9s is, the difference in price between both can be up to 20-30%, and buying farm stock comes with increased risk, but it's cheaper because nobody has to do any work, miners are ready inside the box sitting on the floor or a pallet, they call the shipping company to come to pick it up and that's all about it.

Buying tested and cleaned miners means the sellers will need to acquire more miners than you need to replace dead hashboards, control boards, fans, and whatnot, they will also have to clean them (used miners in China are dirty as hell), test every individual miner for some time, take a video of SN and hashrate on the status page, all that comes at added cost, while you might think testing and cleaning is pretty easy costs nothing, it costs ALOT, especially that the seller would expect high failure rate from the farm stock, so if you order 100 miners, they might need to buy 120 in order to send you a 100 working miners, and we as buyers will have to pay the price for that, plus, the manpower and transportation involved.

I took a few risks of buying untested miners for cheap, overall it was a loss, I would do that if I were in China, but paying for shipping and wasting weeks waiting for miners to arrive, can't be undone, some sellers will offer a replacement, but then sending the gear back to China will cost you more than what you paid in many cases, so personally, I rather pay more to get cleaned and tested miners.

In fact, one of the sellers I know offered me replacements without me having to send the miners back, he took my words for it, I would just tell him 10 gears were broken and he would send 10 for free, but I had to pay for shipping, and wait for weeks to get the replacement, and then even the 10 he sends will still have some failure rate, i tried that a few times and reached to a conclusion that buying farm stock directly when you are not located pretty close to that farm is risky, not worth the money you save.

The s9k's I own still work.  But I run the left board and the right board with the center board detached.

Once I did that they kept running.

Phill i remember you got lucky with your S9k, but really a sample size of one or even ten miners can be far from accurate, the s9ks are terrible which is why they sell them for a lot cheaper.

They were made in the same period of the 17 series, most of those batches had soldering issues except for some batches which were mainly made in Malaysia, since its hard to know what batch you are expecting most people that bought s9ks are not buying them again so the sellers had to drop the price.

I feel when buying a used S9 you should put into consideration the durability and sustainability of the phone. Regardless eBay is a good place to purchase both used and new one.

Phone? Um, hopefully you mean miner....
If you did intend to type 'phone' then boy are you in the wrong Forum....

ebay is the best place thus far, thanks everyone for the support. I now have a total of 1 s9 running and two on the way. I'm debating what's next.

take your time. wait for something that is a good price from a good seller.

hahaha