WEBVTT

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so while it used to be possible to mine

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for bitcoins on your old laptop

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due to the constantly increasing difficulty it's no longer practical on

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mortal computers not even with multiple high performance graphics cards

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so then how do you do it allow me to introduce

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the bitmain antminer s9

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a bare bones computer of sorts except it has no

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display output no way to plug in a keyboard and it only does one thing mine

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sha-256 cryptocurrencies like bitcoin

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oh and we've actually also got an l3

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plus you want to open that one up Jake which does script coins like litecoin

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and a d3 which mines x11 cryptocurrencies like dash

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so the goal today is to find out if these things

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are worth it and no austin that is not trademarked i

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can say it

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so if you've seen part two of mining adventure already you should have a

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pretty good idea of what a fairly efficient GPU mining setup looks like

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but even that is nothing compared to an

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asic miner for example the Radeon hd

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7970 was released in 2012 and mined

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bitcoin at an efficiency of about 4 mega hash per watt so ignoring the few

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companies that never really shipped an end user product in late 2012 avalon

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released the avalon 1 an asic miner that

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did an at the time astonishing

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165 mega hash per watt a huge bump over

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GPU mining so how could they possibly achieve this

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well graphics cards and cpus are designed to

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be able to process a huge range of

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different calculations which is what makes them incredibly useful in our

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everyday devices this versatility is great

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but it limits their ability to do one thing

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really really fast so application

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specific integrated circuits or asics

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these are as the name implies designed

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and purpose built to do just

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one thing and while that might not make sense for your gaming rig for a bitcoin

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miner that only needs to run one specific formula it is a godsend

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at least for the people who own them because of the nature of

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cryptocurrencies the increase in overall

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hashing power in the network that's caused by a massive influx of

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specialized mining hardware is a big part of what made bitcoin's difficulty

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go up even further and i mean way up so when the

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avalon one came out bitcoin difficulty was at around 3 million by the same time

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the following year it was 600 million so if you fast forward to

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2017 there are a bunch of players in the asic

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market including bitmain whose hardware we have with us today inno silicon and

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by call thanks to whom bitcoin difficulty has reached a whopping 2

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trillion so all the folks out there running gpus for mining

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those guys are focused on alt coins like what we showed in part two so options

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like monero z cash and ethereum are all

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popular at this time by the way huge shout out to marshall at

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ogbtc on twitter and francisco over at

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byvm.net who helped hook us up with the antminer s9 the l3 plus and the d3 that

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we're taking a look at today so let's crack the d3 open here not so much for

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the warranty sticker we'll just uh put that

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right there i mean what else would we do with a multi thousand dollar specialized

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computer that's out of stock quite literally everywhere um i mean as a

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general rule machines that does this not slide out ah it was the wrong way dang

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it i called it hold on i'll just go you know we have

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pokey with this there you go as a general rule machines that

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essentially print money are in pretty high demand so unless you've got friends

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in high or low places they're mostly obtained by

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pre-order and the problem with that is that the wait lists can be as long as several

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months meaning that by the time they arrive they might not even be profitable

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anymore and that's a really relevant point here because this d3 miner now

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makes barely five to ten dollars a day

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before electricity costs while drawing a

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massive 1200 watts from the wall by

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default when these things were announced people were buying them left and right with

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dreams of making their money back in a week and then it's just pure profit from

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there on they definitely didn't learn from the

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effects of early asic miners on the bitcoin difficulty curve which naturally

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went way up so now that it's open then let's let's

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have a look at what's actually going on here so the d3 unit has three of these

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hashing boards each containing

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uh hold on so 50

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and i guess it would probably be the same on the other no it's just one side it is just one second oh wow so you

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think that's both sides from both sides wow cool

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so sorry yeah 50 asics they're held in

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place by an aluminum case then which doubles as sort of a wind tunnel with

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these high airflow fans on either side so most of the mass of this thing is

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actually just the glued on heatsinks for each chip so

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if we just plug back in the hashing boards to the

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controller here

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being very careful of course don't worry i got this

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and then connect this wiring to our controller here which by the way see

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this guy right here is a mini Linux computer

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and then we wire up a power supply we got one yeah here we go here's a power

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supply we should be pretty much ready to mine right i think so

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i mean we should probably put this cover back yeah yeah okay maybe finish pouring

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these back in yeah we'll be back in a minute

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okay i know you really like dropping things but it'd be good

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if you didn't drop them i'm not gonna drop them i don't trust you

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so you can actually use a regular computer power supply

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but with how short the supply of those is these days

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in many cases people end up using

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these mining specific ones so the only real

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difference is just that it only outputs 12 volt and then it just has a whack ton

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of 6 pin pci express connectors also because it's not designed for

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consumer use the word on the street there

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is that they are pretty loud

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so you need a network connection because your miner

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needs to be able to find and submit

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any work that it needs to do okay here we go

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that would sound too bad that's not too bad that's fine yeah

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just give it a second don't be fooled my friend it gets worse

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much much worse oh

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oh oh such a great noise

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so um here just like with uh blowing matron from

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one of our recent videos i wouldn't recommend getting any

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bananas or fingers anywhere near these things

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so at this point with all three of them plugged in

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updated and mining at current profitability levels

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we can see the s9 making about 33 bucks a day the l3 plus

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about 50 in a day and the d3 well the

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efficiency is pretty poor as we noted earlier at about nine dollars a day so

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we're gonna come back in a week and see what we've been able to mine

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okay so we're back again it's been about 16

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days since we installed the asics in the

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the empty not to mention not heated room over here

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and we're actually are you pulling up the pool statistics now

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okay cool our s9 has been mining a fork

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of bitcoin known as bitcoin cash and has

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been earning actually over our estimated amount about 30 to 46

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per day after our power is accounted for during

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this period so if profit were to maintain like this

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we'll be able to pay back the s9 at 2500

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in about two and a half months not too shabby

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with that said if you were looking to pick one up for yourself bit main isn't

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even accepting pre-orders as of when we were filming this and we've been seeing

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them priced at over 5000 us dollars on

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the second hand market the l3 plus averaged about 13 a day

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after power giving us around an eight-month roi time

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definitely worse than the former even if you are overpaying leaving us with the

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d3 which Jake actually found a custom

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firmware that allows it to draw 900 watts instead of the stock 1200 watts at

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about the same hash rate so we've been earning an average of seven dollars a

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day after power giving us an roi time of just over seven months that's actually

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better than the l3 plus since it costs less though

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i wouldn't recommend picking up a ton of d3s since x11 miners are nowhere near as

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far into their development as bitcoin and litecoin a6 and as such are likely

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to see big improvements in efficiency as time goes on driving up the difficulty

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curve so then in a nutshell

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at the right pricing an asic miner takes up less space and can yield better roi

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time with less software hassle and no

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construction time compared to GPU mining

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but it comes with higher risk worst case scenario gpus can be resold

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for some fraction of what you paid but since an asic miner has no value outside

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of mining the specific cryptocurrencies it's optimized for when the

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profitability is gone it just becomes an expensive paperweight

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