Topic: Antminer S21: Bitmain’s Game Changer in the Bitcoin Mining World. (Read 1303 times)

Bitmain does this again , S21 pro 234ths dumping on top of preorders S21 200ths miner

s19 , s19xp and s21 are routinely tossing the new fans “martech”

unfortunately they no longer use the delta model fans.

If I had a dollar for every time I read that something was a "GAME CHANGER" in the crypto world, I'd have a lot of dollars.

Apparently Vosk of the Voskcoin YT channel was having problems with his S21's after only a week, fan failures, I think it was.

They really need to start using larger low RPM fans on these to keep the noise and fan wear down, there's an aftermarket kit to adapt an 8 inch fan that is very quiet.

Totally get that, Phil. I am also a very small farm owner (smaller than you!) I have about 30 Machines running full time at 1 location, and about 8 at another. It, undoubtedly, hurts... I just had to pay a $5,961 power bill this afternoon. But - Even tuning my 19K Pro's down to about 98 TH/S utilizing the ePIC UMC's Voltage Optimizer, the S21 in LPM is still more efficient.

Is it like - absolutely revolutionary? No. Is it an improvement from what I was using prior? Absolutely. Also - comparing it to the MicroBT or Canaan offerings, it still seems to be the clear go-to choise from my perspective.
I actually just received a 188T S21 from Altair yesterday that I got up and hashing today - am VERY pleased to announce that thus far, it is pulling 3.38 kW @ 192 TH/S (average). I only have 2 S21's - will be taking delivery of several more in the next month or so. Will certainly update this thread with some power figures next time I drive up to my farm.

No, just standard Bitmain firmware. I never use aftermarket firmware unless absolutely essential (e.g. an old knackered miner that won't run on standard firmware any more).

. 300 x 24 = 7200 watts a day.

35 cents a day at five cent power. 
70 cents a day at 10 cent power.

A small commercial mine like mine has 70 pieces

we are near 5 cents.

so we lose 25 usd a day in power. or 9125 dollars a year.

It is a lot for us.

You are very lucky newer got under 3900w
https://www.youtube.com/watch?v=NWVqNSx4YUI

you are 100% correct! I ordered several S21's but only 1 from the jan batch. I can say, with the utmost certainty, it pulls on average 3.621 kW @ the wall. Your prediction is extremely accurate lol.

All the same - the miner averages about 204 TH/S which is solid. Hoping to be able to undervolt/underclock it for even greater efficiency (wouldn't sacrifice more than 10% HR - but if I can drop it .5-1.5 J/TH like I was able with my 19K Pros - i'll be happy.

have you any firmware sourced? to increase efficiency?

Having received my order of S21 195T's, I must say I'm impressed so far. Most of them are reporting 198T or 199T performance.

The highest power consumption I measured is 14.6A, with 240V at the breaker.

14.6 x 240 = 3504W

3504W / 199T = a very respectable 17.6w per T.

Most measured 14.4A or 14.5A, with one as low as 14.2A, giving 17.2w per T.

As for the power leads... Out of 24 units, only 3 came with the C20 - P13 lead that Bitmain told me I would receive. The other 21 units came with a (6-pin) version of the P13, to 4-pin P13. This was VERY annoying, as I had to butcher these leads, otherwise it would have been a long wait to have some sent from China.

If I had a Bitcoin for every time I read that some new thing was going to be a "GAME CHANGER" in the Crypto world.....

I'd have a lot of Bitcoins!

Read about noise boxes for ASICs. For 50-70 dollars you can buy the material and make the noise box yourself, or buy a ready-made one for 200 dollars or more. If you have inexpensive electricity, then the noise problem can be reduced.

they will be very loud.


maybe in a super cool room say one unit the fans will slow a bit.

Anyone got a video of how loud this thing is, or a comparable miner?

Back in '17 or so, I had a few Avalon 741s, and they had to be run in a side room in the basement with cement walls, and even then you could hear them if you listened.

I don't like the idea of this new miner having a special plug, anyone competent with electrical wiring could crack the case open and cut out this fancy plug and wire in something easier to match up.

3 wires come into a private home.

hot 110 volt
hot 110 volt
ground


panels in a home are typically

100 amps
150 amps
200 amps

400 amps  but rare for a private home


my panel is 150 amps

my 2 hot legs run at  119-121

So I do 238 volts to 242 volts.

I have a  220/240 circuit for the ac
I have 3  220/240 circuits for mining

I have 30 circuits for 120 volts.

I do not mine at home for profit I support the commercial mine in Clifton.

It is more like your setup but we have a 320kwatt standalone transformer that feeds to an 800 amp 440 volt panel
that feeds to 2 sub transformers 1 at 220/235 volts 1 at 117/120 volts.



As to apartments.  I lived in one in New York City 1986 to 1992.

It had a circuit panel with 6 120 volt 15 amp breakers
It had 2 220 volt 20 amp breakers.

the 220 volt were for the electric stove top and oven (breaker 1)

and for 2 in wall ac units (breaker 2)

funny thing is that apartment house had 5 apartments.

each one had a separate circuit panel with all 5 meters on the first floor.

We had a major blackout in 1987  most but not all of NYC was turned off.

My block was dead and me neighbor hood was dead for miles. yet I had power to my refrigerator.

of course no btc back then. 

I often think about that 'free' circuit
1) how much could it do
2) how did it get setup
3) would I have been able to do a decent rig or two on it?

Bitmain website is complete BS , they say the lower the ambient temperature the lower the power usage .
Newer got anything under 3900w @ 200ths even 5c ambient temp in my unit.
Low power mode is good efficiency, but you will be buying miner 200ths timer price per ths . They want to look much cheaper but actually they dont.
Think Whatsminer has done a better job on their M60s

philipma1957,how are the apartments connected to the electrical network?
In Russia, in a private house, you can connect 2 wires as standard: phase (hot) and ground, and then the house will have standard 220 volts.
But you can also connect 4 wires, these are 3 phase (hot) and ground, and have 380 volts and 220 volts.
380 volts can be used for powerful electrically heating boilers, a personal workshop with professional woodworking machines, and anything else.
But there is a secret here: limiters are not installed on a 220 volt connection, but consumption limiters are installed on a 380 volt connection so that there is no production in a private home. But for a bribe, a local electrician will replace these limiters  

But in an apartment, as a rule, there is only 220 volts, although you can connect 380 volts, for example, for a bathhouse in an apartment, but you need to pay for the project and connection, but this is a rare case.

Three wires come in my house.

2 hots 120+120 and a ground

this is very common for a single family home.

my switch box allows  1 hot to 1 ground with a neutral gives me 120 volts.

most outlets in a usa home are that.

I also can do hot to hot and a ground.

my ac and three outlets for mining are wired for that.

If I get an s21 and run in my house I would use one of the four transformers I have they all allow 30 amps.

they all have and can do 30 amps. I would simply do one that boosts me to 250-260 volts.

and 3900/250 =15.66 amps

In the Russian energy system, everything is much simpler, because all houses are connected to a single transformer and the voltage in the electrical network is 220 volts. In villages there is much less, because the old transformers are overloaded, but there is no need for additional devices. In the USA there are 2 voltages: 120 and 240 Volts?

It looks like you will need to down clock the gear.

maybe run 160th not 200th

or pick up this

 https://www.ebay.com/itm/126119287029?

now this says step down but switch input to out put an it will boost you 32 volts.

this would solve the problem for a 1 miner garage units.

my home gets 238 to 243

add 32 I am at

270 to 275

the miner  psu claims to handle 277.. I have used these with my whatsminers and they work

I'll add danieleither's picture to the discussion


Specifications   200T 3500W 17.5J/T
https://shop.bitmain.com/product/detail?pid=00020231212155051379R2N3JfQc065A
3500/220  that's almost 16 amps
3900/220 that's almost 18 amps

And why make a new power connector if the C20 connector handles 20 amps perfectly?
New ASICs are no longer suitable for standard household outlets

So having 240 to 250 volt vs 220 to 230 volt will really help amps.

240volt x 15 amps is 3600 watts which may be enough may not if you pull 3900 watts

3900/240 = 16.25

right on the edges

of okay.

I have ordered 24 x S21 195T. I asked Bitmain about the power cord and this was their response:

"Here is S21 Power cord. It will come with miner."



For those that can not view the image / link for any reason, it shows a diagram of a C20 to P13-4 pin power cord, which will plug into a PDU with C19 outlets.

well then the s21 as I understand that cable can not be legal to run.

looks like a c14 custom end.

I am not aware of any 20 amp rated c14 plugs.

and a 20 amp plug is derated to 16.

16 x 208 = 3328

and the s21 pulls 3500 to 3900


so I see issues.

let me check what they spec power to the s21 maybe they say

230-277


https://shop.bitmain.com/product/detail?pid=00020231212155051379R2N3JfQc065A


reads 220 to 277

so 220 x 16 is 3520

which means a c20 to new end is barely legal

This is a power cord specially designed for the Antminer S21 miner and used for the Antminer S21 power supply. This power interface uses a new type of power plug completely different from the 17 series and 19 series miner power cord
https://www.zeusbtc.com/ASIC-Miner-Repair/Parts-Tools-Details.asp?ID=3247




But such sockets are very expensive in my opinion.

yeah and 3800-3900 is within 10% of 3500 so they are covered.  but my question is I see the end on the miner side.  what is the cable on the wall/pdu side I would guess it need to be 10ga or a very short 12ga if I am pulling 3900 watts on a 208 volt  that is 18.75 amps which is a lot for a 12 gauge c19/c20 cable.

could you photo the power cable on the power connection side?

Absolutely, we got and Sample unit few days ago and couldn't get nowhere near 3500w @200ths.
Power usage 3800-3900w.
Best Efficiency got on low power mode 160 th/s @ 2600w what is 16.4 j/ths which very efficient

no i think they are a 3500 watt miner.

which is not the same as the s19 series.

https://shop.bitmain.com/product/detail?pid=00020231212155051379R2N3JfQc065A


below is the highest power s19 3247 watts

https://shop.bitmain.com/product/detail?pid=00020230626114337330962EtM9r0640

so 253 watts more.


after running a lot of antminers I know some are better and some are worse.

So a rated 3500 watt unit will sometimes do 3650 watts.

Have you seen the new power connector for new Bitmain S21 ASICs?
I hope the cable comes with the ASIC.



Why is Bitmain inventing new connectors? New ASICs have the same power as the old s19 series. If you lose such a cable, you won’t be able to quickly buy it in a store.

Yes love the competition, will be reporting live from this event
Whatsminer machines are very reliable and stable.
Even same performance as bitmain S21 generation same specs and cheaper price would put them in better position.

WhatsMiner M60 Series is Coming
 
Dear all valuable WhatsMiner customers and partners,
 
We are excited to announce that the WhatsMiner M60 series will be released at the Blockchain Life 2023 event in Dubai on October 24th.
 
We will release three lines of new WhatsMiner products to fully step into the 1XJ/T era!

https://microbt-whatsminer.com/whatsminer-m60-series-is-coming/

What characteristics do you want to see?

How much did you buy the ASICs for?

How much did you buy the ASICs for?
In Russia, miners buy a new ASIC S19 90 terahash with 126 chips for $1,000. An ASIC with documents from customs costs $1,250, but this is not necessary for everyone.

Next, this ASIC is flashed into a mode of 110 terahash, 3500 watts and Bitcoin is mined and additionally received NMC,SYS,ELA

I have been buying 134 th s19xp's.  Getting 2 more on the 17th of oct

Under the spot contract, only 1 ASIC model is available for sale, and it seems to me that their new Antminer S21 ASICs discourage the desire to buy S19k Pro ASICs.
They used to have smaller batches of ASICs for sale.
https://shop.bitmain.com/product/detail?pid=00020230810124545653TwO4yKr106A8

Buying the January batch doesn’t work for me, but the sale of ASIC S19 will end in January

Heck so far we are earning a profit this year.. Not much
my last 8 years
2016 good
2017 great
2018 okay
2019 loss
2020 okay
2021 really really really good
2022 okay
2023 a little ahead and a lot of work

2024 I am willing to take a small loss

I do not like to see the hydro 3 phase liquid gear as I am not looking to convert all my s19xp's to s21 hydros.

https://twitter.com/WuBlockchain/status/1710880716383494207

And just a few hours later after:


They have been selling for a year gear at three times the price, charging at one point 8k for an s19, that's probably the last company in the crypto world that would not be able to pay wages. Rather than the development of the S21 I tend to believe it's the unsold stock of miners and not honored deals that are affecting their business and a potential cashflow, they have around 300 people paid directly, what's that, even on above average wages that's less than 1000 miners.

They've moved the date, there is a January batch now available, seems like they really want to test miners' resolve during the halving.
 

Antminer S21 for the Bitmain company was apparently very expensive, so there is not enough money to pay employees:

Bitmain, a dominant force in the Bitcoin mining hardware industry, announced on October 3 that it would temporarily halt a portion of its September salary disbursements for all its employees.

The decision was attributed to the company’s operational cash flow remaining negative throughout the month.

This development has raised eyebrows within the crypto community, especially as Bitmain remains a major player in the mining landscape. Notably, this announcement came shortly after the company’s recent conference in Hong Kong where it unveiled its advanced S21 mining machine.

The notice circulated internally, which was later verified by certain employees, highlighted the company’s challenges, particularly underscoring that its mining operations hadn’t met expectations. The message from Bitmain’s Executive Management Team (EMT) expressed an urgency to meet specific targets and objectives, commonly referred to within the company as POTA (Goal-oriented, mission).

Actually the 335 hydro is a direct attack against 100kwatt to 1 megawatt miners.

Most of us under 1 megawatt of power have 2 phase 208-240 power.

the hydro is 3 phase 380-415 volt power.

My mine has a 460 volt 3 phase that drops to 208-240 2 phase.

if I want to run one or more of the hydro miners it means buying  a 380-415 three phase step down transformer.

yet another expense.

fast search I found this:

https://www.ato.com/30-kva-isolation-transformer.

I could do 5 units of hydro

cost for me is 5,100 plus shipping and install. and hydro cooling for the gear.

I think soon there will be new firmware for these ASICs that will make their use more interesting for miners. And with the electricity consumption, Bitmain was cleverly thought out so as not to force miners to redo the electrical wiring to install new ASICs.

So, are you advertising that you are selling these miners that violate the cgminer GPLv3 license?

The miner who buys 5 kilowatt ASICs probably doesn’t worry about this, because he has a lot of them, not just a few. Such ASICs are even sold in large quantities at the factory, starting from several thousand pieces, and a small miner cannot buy an ASIC at a good price.

I dunno, did no one read the actual numbers on the bigger one?

335T 16J/T = 5.36kW - big number

And if the miner is offline you lose 335T until you fix it.

This 335T number is just ridiculous - over sized, over powered, just keep throwing more chips at it, miner - purely for marketing a big number, but not at all intelligent.

If I glue 3 of my Watts miners together I get 390TH - wow that would be even higher - lol

Correct C19 socket

What kind of plug is that for the air cooled s21? that's no C19/20

Yes was there myself also , launch price 14usd per TH/s which seems decent availible till october 7 , downside is minimum order of 6000 machines.
Price goes up for preorder to 19 usd per TH/s after october 7.

Video
https://t.me/NewsSoleniy/8520

Model Antminer S21 (200Th) from Bitmain mining SHA-256 algorithm with a maximum hashrate of 200Th/s for a power consumption of 3550W.
 Not yet available (First release in March 2024)
Estimates are based on today's values to provide an indication only.
Profitability could change a lot by then.
https://www.asicminervalue.com/miners/bitmain/antminer-s21-200th

So far I don't believe any of the rumors.

Eagerly waiting to see the specs.

Fire sale on s19 xp incoming

If you're hoarding s9s thinking they will make a come back, you're wrong.

Canna is serious underdog contender.
Yes seen this they announced it in their 10 year anniversary conference.
Price tag seem the best one curently for that efficiency of the miner.

Canaan Technology, a China-based manufacturer of cryptocurrency mining machines, has launched its new liquid-cooled mining machine A1466I in Singapore. The machine has a hash rate of 170 T and an impressive energy efficiency ratio of 19.5 J/T, making it Canaan’s most efficient machine to date. The A1466I also boasts a price tag of less than $18.88/T, making it an affordable option for miners looking to maximize their profits. This launch marks a significant milestone for Canaan, as it is the company’s first machine with an energy efficiency ratio under 20 J/T.
https://cryptorank.io/news/feed/aeda9-canaan-launches-new-liquid-cooled-mining-machine-in-singapore

This is not the best energy efficiency on the market, but maybe the company will offer a better price to compete.

yeah that photo looks like it has water 💧 cooling ports it is a fake.

If it looks like a scam, swims like a scam, and quacks like a scam, then it probably is a scam!

That site looks like a scam. like look at the image in detail. you cant tell what anything is and it looks AI generated

Yes, now on the official website of antminer S21, taking into account the discount, it is offered for $5,800(~$27.62 per TH/s) the full cost of $6,300 ($30 per TH/s), with delivery in April 2024. Power efficiency according to their statement is really 15 ± 5% J/TH.

https://www.antminertech.com/shop/antminer-s21-bitcoin-miner-210th-for-bitcoin-mining/

I would tackle it from a different perspective. With a daily production of 210T, you can earn approximately 0.00046200 at the current difficulty level. As a result, the break-even price would be $13,680. However, the S19XP's break-even price is higher at $21,080. If Bitcoin were to drop back into the $20,000 range, your profitability would be compromised, but the S21 would remain a profitable option.

I mean the watts per TH/s, price will be around 25-30usd per th/s i assume.

you think they will sell this for 18.5 x 210 = $3885 usd

seems too cheap

Yeah shouldn't be far of that.

I'm not a Hydro ASIC, but I have experience with Hydro cooling on a PC. Hydro cooling is more efficient, but any non-factory solution requires great care in installation and use, because the principle is the same. And the repair of such equipment is more expensive.
If we discuss free electricity, then I don’t think that anyone has large limits for free electricity, not 1-5 kilowatts per hour, but 20-50 kilowatts per hour.

I'm betting on ~18.5/TH

The K-10 Ultra miners old version been said in conference are priced 25usd per ths , the new version 200mhs @4000w is priced 30usd per ths.
Keep in mind the prices will change depending on market conditions as these machines manufacturing cost are dirt cheap.
If profit increases they will charge lot more for TH/s

I have seen 2800usd for a 136th s19xp

a 210 th unit burning the same 3100 watts means  74th for the same power.

or $4.50 a day extra so in 1000 days it earns 4500 usd more than a 136th s19xp

2800+4500 = 7300 usd my guess is :

7500 usd to 9500 usd for 1 unit

preorder and at least a 2 month wait.

If the Antminer S21 lives up to its rumored specs, Bitmain might just redefine efficiency standards

You are right  , most depends @ what price per TH/s will it be launched . Hydro miners has some slight additional cost as a radiator. There is no air cooled miner which can reach that performance released yet.
I really don't care about the profitability, the most i care fastest ROI
For some people with free power it would be something like S19-90ths which is only 7-8usd pet ths.
S21 will be at least 20-30usd per ths.

In the top 7 profitable ASICs there is not a single bitcoin ASIC!
https://www.asicminervalue.com/

These are the closest competitors,
Bitmain Antminer S19 XP Hyd (255Th) 5350W
MicroBT Whatsminer M53S (260Th/s)  6760W
but if a new ASIC (400Th/s) 6000W appears, it will change the mining market.
Only they need to hurry to start selling at the end of September, because halving is coming soon.

I was expecting more like 18 or 19. Have to order one when they come out.

Absolutely! A power efficiency of 15 watts/TH would be a significant improvement

15 watts would be big real big

In the ever-evolving world of cryptocurrency, Bitmain has once again made headlines with the announcement of its latest Bitcoin miner, the Antminer S21. As the crypto community eagerly awaits the details, early speculations suggest groundbreaking advancements in mining efficiency and power.

Antminer S21: What We Know So Far

Bitmain’s teaser video has left many in anticipation. The Antminer S21 is rumored to mine at a staggering 200 terahash, consuming around 3,000 Watts. The most exciting part? Bitmain might be introducing a revolutionary Asic chip, aiming to bring the efficiency down to an unprecedented 15 joules per terahash.

Bitcoin’s Current Landscape

As of August 21st, 2023, Bitcoin’s value stands at $27400, experiencing a slight dip. The crypto market is known for its volatility, with Bitcoin’s all-time high reaching $68,789.63 on November 10th, 2021. The big question on everyone’s mind is when the next Bitcoin Bull Run will commence and what the new all-time high might be.

The Competition

At Mining Disrupt 2023 in Miami, Zeely Miners showcased their K-10 Ultra Bitcoin miners. These air-cooled miners boast over 200 terahash, consuming a little over 4,000 Watts. With competitors stepping up their game, Bitmain’s announcement of the Antminer S21 seems timely.


Profitability Projections

Based on the rumored specifications, the Antminer S21 could potentially earn around $13.39 in Bitcoin daily, with electricity costs estimated at $7.56, leaving a profit of $5.83. These figures are based on the current value of Bitcoin and could vary with market fluctuations.

The Big Reveal

All eyes are now set on the World Digital Mining Summit 2023, scheduled for September 22nd-23rd at the Ritz Carlton in Hong Kong. This annual event by Bitmain promises to unveil the official details of the Antminer S21. Attendees can expect a mix of networking, knowledge sharing, and a glimpse into the future of crypto mining.


Final Thoughts

The Antminer S21, with its rumored specifications, has the potential to set new standards in the Bitcoin mining industry. As Bitmain prepares to unveil this game-changer, the crypto community watches with bated breath. Whether you’re a seasoned miner or a crypto enthusiast, the Antminer S21 promises to be a topic of discussion in the coming months.

Remember, while the world of cryptocurrency offers numerous opportunities, it’s essential to approach it with caution and due diligence. Always stay informed and make decisions based on thorough research.

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