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on the surface this is the most sensible thing in the world if I have one

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Ethernet Jack but two devices to plug in why not use a splitter Splitters are

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great they work for everything from headphones to coax video to power except

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that's not how Ethernet Works meaning that all of these devices on Amazon are

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big fat scams or are they while these

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ones don't work and I'm going to explain why in a moment we actually managed to

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make our own Splitters that do work it's

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just a little bit more complicated than a traditional y cable we're going to

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talk about that in a moment first a closer look at the world G oh boy I'm

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not even going to try uh they mostly call it Ethernet splitter in their

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marketing so let's go with that looking at this thing you could easily assume

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that you just plug this end into anywhere you want and it turns one

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Ethernet port into two but if we look at the product page all of the different

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ways that you can use them pretty much boil down to the same thing splitting a

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single Ethernet cable say one that runs from your garage to your living room

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into two separate physical connections on both ends which doesn't really sound

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like a scam at all in fact that sounds great come over here let's pretend that

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this side of the table is my garage this basic switch is going to represent our

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home internet router then this side is the living room where I sit on bean bag

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chairs and also want to plug in my Nintendo switch and my Xbox

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unfortunately Ely whoever built my house only ran a single Ethernet cable between

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these two spaces no matter we'll simply put a splitter in each of the rooms then

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plug in our devices a voila more

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likeah neither of them has a connection meaning that all we've managed to

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accomplish is turning our Jack here into

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Jack all but hold on a second what if we

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disconnect one of these from either end

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and there it is huh what the heck is

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going on here we haven't even told you about our sponsor autod DS want to

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manage an eCommerce business but worried about the costs of managing inventory

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don't know how to find the right products to sell stay tuned to the end of this video to find out how autods can

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help you've probably encountered a headphone splitter before these are made

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by simply wiring a single plug up to multiple Jacks allowing you and your

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friend to enjoy the same mixtape on the school bus and this works because it's

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an analog signal it's kind of like a river with the water being your music

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splitting that River into two or even more might reduce the amount of water or

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the volume but it's still the same Water

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by contrast a network connection is

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digital which okay is still just electrical pulses on a wire but it's

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different because the ones and the zeros are flowing bidirectionally as the

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connected devices communicate with each other so back to our garage here if my

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router sends out a data packet it expects to receive confirmation that it

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arrived safely so if I had two devices

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hooked up to that Port it wouldn't know what to do with it with that said the

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diagram on the product page for this isn't entirely unreasonable there are

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enough conductors inside a modern Ethernet cable to support more than one

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physical connection so how would that work okay we really are going to get to

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it but first you might have heard these network cables referred to as Cat 5

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maybe cat six cables the exact label doesn't matter much for what we're

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talking about what you need to know is that these cat or category cables have

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eight individual wires inside them that are twisted together into four pairs and

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here's the thing older standards like 100 Bas TX which runs at 100 megabit per

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second only used two of those pairs so

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if we don't need to run at gigabit or higher speeds we've actually got enough

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pairs for two of those slower connections which well wait a second

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then this splitter should have worked okay what's going on

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here I must look ridiculous I just

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completely covered in SHO like is my face shoo covered yep great yes there we

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go look at that I even managed to mostly

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non-destructively do this oh am I not done yet

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oh

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crap wait for it yes yes I got it holy

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crap every contact goes to both sides

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it's wired just like a headphone splitter would be now we could have

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confirmed this with a multimeter and in fact we did but this was way more fun so

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what you're looking at here is all the pin ones are wired together as are all

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the pin twos threes and so on all the way to pin 8 so you could try to use

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these things exactly like they show on the product page and they're not going

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to work now some of the brands marketing these things are more honest this one

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we're looking at clarifies that it only works if one of your devices is powered

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on at a time but that's pretty useless

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especially considering that you can get a fullon Ethernet switch for $9 or a

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gigabit capable one for $16 those will

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allow you to share that single Jack with up to four devices all at the same time

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without bandwidth restrictions to each one we're going to have those linked down below however that doesn't mean

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that we're done with our janky Splitters yet I mean if a real one could be made

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then obviously a real one should be made to hell with your ethics Dr Malcolm 100

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Bas T uses pins one and two to transmit

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and pins three and six to receive so we

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wired up our a ends using just the

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orange and green pairs I should note that we use the t568 B color coating so

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orange for transmit green for receive then for the B end we decided to use the

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blue pair as our transmit on pins 1 and two and the brown pair as our receive on

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pins 3 and six then on the combined end we just followed the t568b cating as

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long as you're not mixing a transmit and a receive pin onto the same twisted pair

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you should be okay with that said you do want to pay special attention to the

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labeling on whatever keystones you use you cannot assume that the connectors

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will be in numerical order now let's try it all we got to do is unplug this

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worthless adapter see just like before I got to

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say this is the kind of thing that in a hundred years never would have occurred to me now give it a

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second I am now the proud owner of two Rock Solid 100 Bas te connections

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between my garage and my living room Theus 100 megabit is so slow you might

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say and well yeah but also no I mean if you

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want to transfer big files back and forth between machines on a network then

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maybe this isn't a good solution you should definitely go buy a switch I mean

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$9 guys but if you're just trying to get a couple of machines online with a

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reliable wired connection so you could watch exclusive behindth scenes content

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on Floatplane.com ours at least does what it says on the

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tin and with the average internet speed in the US being barely over 100 megabit

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statistically speaking you're probably not actually giving anything up but but

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before you run out and try this there's a couple of other things to consider and

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I mean aside from the fact that a switch costs $9 um like PoE or power over

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Ethernet while this method should allow for mode a PoE to work as normal mode b

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or four pair PoE will definitely not work and could cause some serious damage

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to your equipment if you try it of course if you've got PoE equipment

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you're probably not resorting to hacks like this whether we're talking the

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potentially scammy commercial ones or our functional DIY versions functional

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did upgrading my home network to 10 gig cuz I guess you're into networking or

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something