Ethernet RJ45 Speeds & Cables - Everything you Need to Know as Fast As Possible

Ethernet, Networking, RJ45... So you don't know any of this stuff from a hole in the ground. Watch this video and know the basics in less than 4 minutes!
FORUM LINK: linustechtips.c...

[@techquickie]

We call them HDMI cables, and DVI cables... They are just different terminations.

[@mariot.5178]

can you remake thes video, it s old now...

[@lievdorfman4817]

Yeah

[@CrisRios]

It would be nice to see a remake xD

[@alichehab5804]

cool

[@Depl0rable10]

Do a remake please, it's relevant for sure

[@luar48]

He seems so happy.....it actually made me smile :D

[@ZeldagigafanMatthew]

Good cables and jacks will have gold plating on the connectors. This helps with conductivity as gold does not oxidize, but it is vulnerable to dust interfering.

[@fernandochazari7407]

talk about CAT.7 please!

[@dangshnizzle6929]

CAT8

[@regulareric8759]

3:18 did linus just fall, die and then comeback? he is the messiah for all tech stuff after all?

[@ZenPunk]

Rj45 is a terminator, not a cable. You're not likely to see it used on anything other than twisted pair ethernet, but I think I have seen it done before.

[@kingzach74]

Often cables terminated with RJ45 are re-terminated with RJ11 and used to pass phone line signal through. Usually used in situations where the original phone line is setup for something else such as an alarm system.

[@GrimSleepy]

I agree it's quite easy to distinguish between the two: Cable is a super-soldier from the future that was trained from birth to be what he became... Terminator is "a cybernetic organism, living tissue over metal endoskeleton from the future, programmed from manufacture to be what it became.

[@DENPTrains]

can be used for tv signals too

[@AlejandroFlores-ge9hg]

THANKS!!!!!! I performed the scratching tip an that doubled my bandwidth!!! No joke, I thought my cable was damaged, THANKS LINUS!!!

[@Martin120577]

If you want higher speeds , try avoiding the cables with stranded wires; when comparing stranded wire to hard wired cables there is a speed difference. ( according to the network tester ) Linus, did you considered Cat 7 with Terra connectors or optic fibre from workstation to server, just to go as fast as possible?

[@James_Knott]

Stranded cables are supposed to be used only for patch cords, not the structured cabling. So, you'd use stranded between a device and the keystone jack and solid between jacks. Always!

[@Metman2J]

I am glad I looked down through the comments to find someone else posting that the switch in the middle would act as a repeater to the devices connected to it.

[@extrememoto680]

lol, I could go with 500m cable since my internet only delivers 2 mb/s ...

[@pyramidblack]

2 mb/s is a lot

[@Analbanger26]

+OldePak Maybe in some village in Nigeria

[@pyramidblack]

+Finnishnorsu in turkey we have 800 kb/s as normal

[@NickFje]

Wow that is pretty slow ! My family is getting 1000/1000 mbit/s network. I live in Norway

[@pyramidblack]

***** ahahah we live in a shithole

[@Chiquelhotdb]

RJ45 is the name of the plug not the whole cable, the cable name is Ethernet Cable

[@TheDragonballboy]

3:17 how I get out of bed

[@smack3347]

Lmao

[@clevoro]

When you find out that your mobo doesn't support OC'ing

[@scouselayanoda4583]

😂😂😂😂

[@richardclader7261]

i think it would be cool if you guys did an episode on the layout of a gpu pcb and what the purpose of the different components are on it such as the vrm's and gddr modules so ppl could look at the pcb and know what there looking at and feel like a boss

[@jopa04]

We need an updated version of this. All data present is still very relevant and useful. Just wanna see if there are any new changes to the cable categories. No one runs fiber optic inside their house, right?

[@ichbrauchmehrkaffee5785]

this is all the information i wanted in a single, less than 4min video. nice

[@DeNNiiiable]

1. The distance you mentioned is the max distance but may not always be true. If for example the source pc has a low quality card it may even have problems at half the distance. Some devices don't have enough juice to push the distance to the limit which in fact true for probably half if not more of the consumer grade products. Build in cards of older MOBO's have this issue frequently. 2. interference: heavy machinery or power lines close by can 1 reduce distance, 2 cause dropped packets but both would mostly be found in a industrial environment or badly wired buildings. 3. there is a CAT 6a, 7, 8, 8.1 standard but only up to CAT 7 is used these days but your right 5e and 6 are most commonly used 4. using 5e/6 makes no noticeable performance difference at short distances (up no 10-20m) but i have personally noticed a difference above 10 meters but only IF you have high-end gear and a good network setup 5. If you only surf the net and you dont have a 1gb internet link there would not be a noticable in what cable you use but a CAT 6 cable might give you slightly better Latency but the difference is so SMALL that its near impossible to verify in some cases 6.many other things but these are the basics NR 1 IS VERY important so keep it in mind Gold plating i would say is over kill and 99/100 times you will just throw away money on over priced cables. If your cable is oxidizing your pc is NOT safe or there is to much moisture where ever you have your pc again NOT Safe.

[@frollard]

Good primer I would have like to seen a differentiation of: the number of conductors (vs # of used), twisted pairs, shielded and unshielded, plenum rated and drop rated cable... what the categories mean, what 'Ethernet' is (doesn't just refer to category of wire and terminations), but we tend to use it interchangeably to describe the cable itself. where 'RJ' comes from, Power Over Ethernet These aren't all necessary, but it would only take a bit to explain a bit deeper (still as fast as poss)

[@100percentGetDatCash]

Techquickie + Linus = youtube money. Thumbs up.

[@abdullahshahid2337]

Wow this video really useful till today

[@NickyTheRook]

Falling was better than the derpy, happy popup, good job swiching it up.

[@JulianAcostaBuenosAires]

ok, this is by far the best video you guys made. I was actually looking for some information and got that and tons of laugh. Thanks!

[@KevinBenecke]

It's interesting to see that this video was posted just a little over 6 years ago considering that there is a cat7 Ethernet wire now.

[@coolcow0468]

do an episode on power supplies. what do watts mean. what are rails. what does 80+ bronze silver gold mean/ what size do you need? how to diagonose a failer? the does and donts?

[@datpudding5338]

Ethernet cables being like garden hoses xD A kink slowing down your connection

[@nevinblanchard9197]

I watched that fall literally 9 times. That was grate!

[@enissay9950]

Verry informative, thanks! My problem so far was an old cable cat5 limited to 100Mbps :x Ordering a gigabyte one (fingers croossed)

[@thegaminguchiha8570]

Gigabit*

[@James_Knott]

Gb was designed for CAT5 and even predates 5e. It was CAT3 that was limited to 10 Mb.

[@Thunder_Dream_Designs]

Cat5e - 10gb at 45meters Cat6 - 10gb at 55meters Cat6a - 10gb at 100meters

[@tebasnineone]

Whoa.. cat6 only have 10 meters advantage, are you sure you've test it?

[@ApicalTrades]

As usual, it is fun and educative.. .Thanks

[@OriginSaint]

I'd love to see the next techquickie about choosing when is a good time to either build a computer or wait until the newest parts come out.

[@James_Knott]

What's beyond a switch is irrelevant. It is the single hop distance between devices that counts. So, as long as you're within 100M, including patch cords, you're fine. Incidentally, those specs assume a patch cord and associated connectors at each end. As for kinked cables etc., on one job I was sent to fix, I found someone had stapled (big no no) the cable right into the corner (a really big no no). You don't use wire staples for Ethernet cables. You can use ones that have a plastic spacer between the staple and cable and are designed for that purpose.

[@ethernetpedia7607]

You Really have shared very explanatory information in very short time. Good Going.

[@batmanleg1]

Love these short videos. There perfect for my short attention span.

[@letsgoBrandon204]

Hmm? what? Sorry, I wasn't listening.

[@hodgoes2001]

i personally put Cat6E cables through my house... i know it was overkill.. but that way it allowed for the cable to degrade over time and still keep my performance

[@Pyro_Salamander]

I don't know why im so surprised to see a linus video being used by my online fundamentals networking tech class

[@TheBrainiac777]

Please do a series's where you explain what to look for when buying a certain product. Such a hard drives, you look for capacity, rpm, cache, etc.

[@MustafaMakaveli]

Find the adapter in your network settings, right click, click status, and the connection speed will be 10mbps or 100mbps

[@roblax87]

Linus!! You forgot to talk about RJ45 jack LED's and why they exist! On the right: blinking green tells you if there is activity. On the left: 1)steady amber is gigabit or 1000Mb/s 2)steady green is 100Mb/s 3)no steady light is10Mb/s Silly Canadians

[@marcot401]

Good advise. Don't eat yellow snow!!! No i know stupid joke but I like what you do on You Tube. Keep it up good job.

[@jadamek237]

You should do one showing how to crimp on RJ-45 connectors to make your own custom-length network cables. That would be a good follow-up to this vid.

[@gjermundification]

0:43 A common speed would be 0.02 - 0.2 ms on LAN, 2-250 ms on WAN, while 10/100 = 100 Mbps is capacity.

[@jjchenjj]

I love these videos....I learn so much from these so keep it up!!

[@galaxytraveler5779]

I still use thicknet 10BASE5..

[@OwlBoy96]

Can you do an update on RJ45 ethernet cables? I bought a Cat7 cable and I was wonderinv if you could do a video on it. It would be a nice video if you could explain what makes the Cat7 cable different from the Cat5e and Cat6 cables

[@Chrishall1982x]

Tighter twist in the cable that provides a better signal with less interference.

[@OwlBoy96]

Thanks Chris!

[@ScorpioFPS]

On my Computer I have an Ethernet connected. There is one amber light blinking The other light however is a solid red for me and not green, most likely indicating an issue I assume. Now its not a problem with my desktop I don't think but it could be the Ethernet cable I'm using. I went to a friend's house and used their cable and the red light was now green. But now I'm back at my place with the same static red light. I tried other cables. Is this an issue? I would appreciate input. Thanks!

[@TheXSairam]

isnt a switch an active device then it doesnt matter if there is a 5m cable next in it?

[@7-tech511]

+TheXSairam That's true. After 100m you need a switch, then you can go on with the next 100m but not more than 7 times...After 7 switches you will get problems with the delay of the router witch have to "route" you to the next point, e.g. the Internet.

[@liambowers666]

the 7 switch thing isn't neccessarily true. That's only if you are using all Layer 3 switches that are handling the routing. If they are simply just 'switching' and not routing. If you're thinking of the legacy routing protocal RIP, that was a 15 hop limit and is now redundancy as most link layer routing is done over IGRP/EIRGP which by default is a 100 hop limit but can be configured up to 255. Hopefully clears some confusion!

[@viperv99]

Damn even in 2021 this information is relevant. Learned a bit. 👍

[@netnerd01]

These are awesome purely for the entertainment value :) I don't even care what he says, they're just cool videos about things most of us already know.

[@W9ZKHamRadio]

7 years later, and KZbin wants to recommend *this* I mean he hasn't really changed much

[@christiandinkel8481]

Great video! Small correction: If you live on the planet Earth you have quite likely never seen an ethernet cable nor heard or read the word ethernet.

[@brysonshires9573]

Why don't we use rj45 cables for things like hard drives, when sata can only run at 6gb/sec???

[@omranpanda9304]

Power

[@omranpanda9304]

You need power

[@stevenrecine3418]

Cat6 RJ45 Ethernet provides power too I connect security cameras that use POE (power over ethernet)

[@Luky584LPcz]

Steven Recine but you have to use some not used wires in that cable -> lower speed

[@fahadoutlook1241]

please make video on what is difference between 1000BaseT and 1000BaseTx .... what is T & TX ?

[@ManWith2Hats]

Did that ending just happen? Too Good

[@i5aac92]

Can we have a tech quickie on what to look for when buying a PSU?

[@livem2011]

10 years later gets recommended video

[@Sirg17x]

Doubt ill get an answer on a video from over 5 years ago, but doe coupler's decrease performance? I am currently renting. I have my router and modem upstairs so I can hardwire my PC. However I want better performance with my connection for gaming on my PS4 downstairs. As we are renting we were limited to how we could set up our home network. If I were to connect two cat5e cables together via a coupler would I see a drastically different connection speed? Right now my PS4 is online via wifi, but connection is not at a preferable speed for online gaming. Also are there ratings for speed transference through these couplers or are they pretty standard? I see packs of 5 and even 6 of them on Amazon, but don't want to cheap out if there is a difference.

[@MrSpartanZ12]

this is the most informative video i have ever seen !

[@Ostikylskapet]

Can you please do a guide on how to know if you're PC can handle certain games of choice before buying them. BTW awesome outro!

[@pemanson]

You should do a guide on how to rund diagnostics on you hardware

[@CwGoh]

Linus is probably going to do a FAP about it but as far as I know SAS is more enterprise friendly and it has more enterprise-friendly features (eg. Stronger signals through the cable to allow longer cable runs in gigantic servers) and that SAS controllers can be used with SATA drives but not the other way round.

[@MJ-qe5lg]

Just an idea! Could you build a Playlist of all you videos that may be helpful for the A+ exam?

[@FoxtrotVids]

That new outro

[@JonathanTash]

Thanks a lot for this video. It was super quick and helpful.

[@BAZFANSHOTHITSClassicTunes]

That explains why my 5metre cable is only giving me 300mbs (approx) out of 600mbs (approx). Thanks. Tho its also running thru a power line adapter: (had no choice).

[@TomislavKolaric]

great video, learnt a lot, great ending, love these videos.

[@peppigue]

Anyone have a good link for ten pin rj45? can't find it...

[@jadeitowy5867]

Good deam bruv I'm doing courseworks from you man you got everything i need.

[@anderst2]

There might be a couple of faults in here. Linus mentions the length of the cable, like running 100m, then another 5 out to another device. That's no problem. the lenght is between 2 components, so a 4 port switch can run cables at 100m to each of the components. No problem. And there is headroom. We had a cable that was 124m long which worked, but not at 135m, we added a switch at 124m and now it works. This cable is laying in the worst possible way too. (too expensive for fiber for the usage)

[@33rdGemini]

how is CAT6 rated for 10Gbps at 100 meters? Everything I've read said that CAT6 is 1Gbps, CAT7 is 10Gbps, and CAT8 is 40Gbps, including the 50 foot roll of CAT6 I bought, which says, "up to 1Gbps" on the packaging. Please explain.

[@ahobimo732]

What I will remember: RJ45 - physical connector CAT5 -> slower CAT6 -> faster

[@Jonix2000]

KZbin recommendation in 2021, Linus looked so very young back then.... now he has a beard and is all grown up....

[@ramborambo6052]

Thanks for the information!

[@RogueBrit]

a solid vid as always Linus

[@megaspeed2]

16:9 = better than 4:3, 16:9 is a similar width/height ratio that the average human vision would have which means more of your vision is filled, your eyes don't have to focus as hard when looking at it as it would with 4:3. There is also 16:10 which is less common, its practically the same as 16:9 and is just used because its easier to make a resolution between 1360x768 and 1920x1080 on a 16:10 sized screen (1680x1050)

[@BrazucaNY]

Dude... Can you prove that 100ft cable lose performance ? do the same as you did with the USB cable.

[@Sugarkryptonite]

Yeah. I'd like to know how much speed actually drops off if you go over 100m..

[@Domo-lq8lg]

i have a 100ft cable that goes to my modem that is in the living room to a router that is on my room and from 30 mbps it goes down to 21-22

[@twistedkiller28]

duxz you must have a low quality cable. Try a round ethernet cable that is shielded like a cat 6 stp cable. Don't buy flat ethernet cable.

[@northtalk4330]

So the longer the cable the slower the mbps? I have an ativa R45 50ft & the performance numbers are faster.

[@twistedkiller28]

@@northtalk4330 the max length for cat 5e and 6 is 328ft @ 1 gigabit.

[@Kotobars]

Hahahah that fall in the end, so funny :D Linus made a perfect fall sound

[@itsPepsiCola]

I understood everything he said in this video. Thank you CTech certification. :D

[@joechea_]

Hi @techquickie can you make a video explain the specification of switch before i buy one?

[@theepiccoolkid]

If I get an ethernet socket installed in a room in my house far away from the router will the cable be run from the area the router is located in to the desired room, or is there somewhere else these cables come from?

[@Amaurosys]

+Teknium The cable will run from the desired room to wherever your router is located. If it's less than 100m (328ft), then you don't have to worry about anything. If it's more than 100m, then you would need to move your router somewhere closer, but I doubt your house needs more than a football field's length of cable to connect your router to your room, even if they're on opposite ends of the house.

[@magicki13]

some recommendations for network card.....!!!......Netis,tenda,tp link???...for pci or pcie ports....and whether it is important at all

[@yumri4]

infiband vs Ethernet? really which is better and which would be better for a home network that is useing a NAS for a media sever?

[@Colors.TF1]

Can your internet provider see whether you are using the cat5, cat6 or cat6e cable?

[@benja2a]

Wrong info, Cat5e only support 1gbps at 100meters ( and not 10gbps at 55 meters as it was said on the video) and Cat6 indeed support 10gbps but only at 55 meters. In general, he confused the Cat5e cable with Cat6 and the Cat6 cable with the Cat6a

[@SpcxInvader]

Linus.....how bout doing one on the I/O and difference in USB 1/USB 2/USB 3??

[@TABSF1]

Switches, routers and repeaters can be used to increase the range of the cable. So the 100m then a switch and 5m doesn't work. Normally you would only cover 95m end to end, once you've got to a switch or another router then you have another 100m play with. Cheap unmanaged switches are a very cheap way around this.

[@James_Knott]

Routers are a completely different function from switches or repeaters (actually bridges these days), which have no IP routing capability. In fact, bridges are ancient too. They date back to the days of coax based networks.

[@jsnwldrp7423]

Love these videos, keep them coming!

[@biteme3989]

You guys should do a video on network switches

[@Respected2010]

Guys, the cable rating (i.e. CAT 5e, CAT 6 etc.) can't be relied upon because there is nothing to stop a company from putting CAT 6a on a cable that doesn't even meet CAT5 standards.

[@ivanb536]

They can do that in US, but there is product inspection in EU, and if it doesn't meet the EU standards it can't be put on a market.

[@Respected2010]

Please provide links to this as I'm unaware of any legit organisation which actually checks network cabling standards in the EU. Most large companies request benchmarking to ascertain the performance and quality of cabling (but these companies may order hundreds of metres of the stuff).

[@ivanb536]

if it has CE (Conformité Européenne) sign it's legit, it's that simple.

[@vamshivemula8025]

Can i use 4 wire (2 pair) ethernet wire to connect gigabit router from isp for 20 mbps plan?

[@AKAMustang]

There will be a small contact resistance, but it will have no effect on the performance. Just remember that you can't split a data cable at a junction box, you'd need to use a hub or switch, but for making a longer cable out of two shorter cables, or even better putting a wall mounted socket on the end next to your PC then it's fine.

[@James_Knott]

A hub? Does anyone still use those? I have one here that I bought almost a quarter century ago, but haven't used in years.

[@eduardoa41]

I have a question ? My router is right next to my ps4 my cousin said if I connect my eternet cable to my ps4 and router it will go faster and my cable is hello just says Does it actually make it faster

[@jaylenhopson93]

+luis angeles yes.

[@Julianna.Domina]

+luis angeles If you can use ethernet, do so.

[@attackperson47]

+luis angeles Wifi is slower than cable connection. Remember that

[@frost-e9562]

Yeah my ethernet cable was connect to my and it went way faster but i have it connect to my computer now so i suggest you showed connect it

[@joshuacasey8545]

using an ethernet cable will work better for you if the wifi connection is slower then your internet connection.

[@HitMarkersAreFun]

interesting, never really thought about the cable rating. lol, if it fits and I get a connection, then it works :)

[@PreLeisureTrax]

3:17 - my new ringtone.

[@abisu5273]

My laptop is too slim for an ethernet cable so I have to get an adaptor for a cable. I don't know what to buy... there seems to a big variety of prices. Also I don't know what the router is going to be like where I am going. If that makes a difference. All I know is that the Internet will be slow.

[@ikigai47]

those earrings are ADORABLE!

[@timursaparbayev6371]

you are talking about a slight bend. If we have a short one, it will work by connecting another cable =)

[@criskitz23]

hey linus great vid! can you also have an episode on how Internet Providers gets their internet??

[@David-qm8xm]

My router is 10/100/1000 ported and my motherboard is an asus p8p67 delux. Would I benefit from using cat8 vs cat6a?

[@amertino]

Actually RJ45 is an old standard that does not use T568A or T568B nor standard 8P8C plugs. I am not even sure why most people mention RJ45 when talking about CAT cables, which is even more incorrect that reefer the plugs as RJ45.

[@0Agvilar0]

rj stands for registered jack and it looks exactly like that, nothing more...

[@amertino]

Yes RJ stands for registered jack and yes that was (is) a real standard. But it is not the same that computer cables use today. The old RJ45 had a different wiring and a different connector and it also defined both unlike today that there is a standard for each one. It is true that most people and companies call the cables/connector RJ45 but this is actually incorrect. The standard used to mean something, but now is just a nickname for cables that use 8P8C connectors.

[@0Agvilar0]

amertino According to wiki keyed RJ45 is actually RJ45S now, so..I guess they made it correct anyway :)

[@seahawksforever9504]

I have trouble researching and understanding what bandwidtch mhz mean. Dumb it down for me please. I have 1 gig fiber optic internet service. I'm using cat 5e and I see cat 8 avaible for it. 100 mhz vs 2000 mhz.

[@TacoTot]

As an electronics technician, I screamed and almost fainted at 2:39