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did you know that your mouse isn't getting the bandwidth you need to be the

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best gamer you can be we love when manufacturers tell us what we need thank

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you mr business i'm sure your infinite wisdom is looking out for all of our

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best interests just kidding over the years marketing

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has tried anything they can think of to get you to buy their new product

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oh my god and when asrock came out with their new riptide motherboards featuring

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lightning gaming ports for your high polling rate mouse and keyboard

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we just had to find out if it was real we know our sponsor norm pass is real

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more at nordpass.com Linus

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now first things first we don't expect these ports to matter usb 3.0 has a

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couple things going for it full duplex data transfer and max speeds of 5

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gigabit this means it can send signals back and forth at the same time and it

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can do so very quickly this has been great for modern hardware as we plug in

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more and more devices that use more and more data but how much data does a mouse

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or keyboard actually use well a standard mouse sends about a three byte packet

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every time it's pulled to calculate position and whether or not a button is

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being pressed if your polling rate is let's say 1 000 hertz that's 3 000 bytes

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of data every second to some this may seem like a lot but remember that even

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usb 2.0 which we've had since april of 2000 has a theoretical max signaling

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rate of around 60 megabytes if a 1000 hertz mouse is sending less than three

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kilobytes of data per second which is absolutely nowhere close to the max

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signaling rate why do we even care meet razer's viper 8 kilohertz where is it

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yeah there it is this is one of the very few eight kilohertz

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mice on the market now just like your monitor having a high refresh rate is

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good for getting the edge over your opponent a higher polling rate mouse and keyboard are too the higher the rate the

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lower the click to photon latency you should experience now this particular

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mouse boasts about a .125 millisecond

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motion and click latency making your actions even more near instant than with

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a traditional thousand hertz gaming mouse the jump to eight kilohertz makes

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our data usage shoot up to 24 kilobytes per second but that's still well under

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our usb limits even if we add an 8 kilohertz keyboard on top of our 8

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kilohertz mouse and double the data rate to 48 kilobytes per second we're still

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well within limits and most newer devices these days are

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using usb 3.0 later anyway with newer motherboards having increasingly robust

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i o featuring multiple 3.0 ports however

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the issue lies not with the ports or the cables but with the usb controller

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present on each board data comes in from your device through a cable to the usb

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port then to the controller and CPU the maximum bandwidth is usually a little

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under what the theoretical maximum of the cable is with most controllers

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getting around 400 megabytes per second in 3.0 if you have only one controller

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eventually all of that traffic is going to add up depending on how many devices

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you have connected and what they're doing but even if you have a file transferring to

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a thumb drive maybe you're writing data to a dvd or blu-ray burner there's a mic

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hooked up to recording audio sound being output to a headset chances are you're

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still fine hooking up your fast gaming peripherals and

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using cable ties from ltteststore.com not according to asrock though

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meet the riptide this is the x570 model

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and it's a decent board for the price ddr4 up to 5000 megahertz 10 phase vrm

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three pci express slots lots of SATA and m.2 ports yep it's a modern board all

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right however what we're interested in are the lightning gaming ports here and

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here for your mouse and keyboard specifically let me read you the little description they have on their website

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patent pending of course aimed for die-hard gamers and enthusiasts

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lightning gaming ports are sourced from two different controller interfaces that

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allow gamers to connect their high speed mice and keyboard with the lowest jitter

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latency and win the best performance they've even got a little graphic to

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show what they mean here having two controllers sounds cool and

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it might be a feature we'll see come back more often in the future but marketing it as a gaming gimmick is

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dumb with modern cpus and usb 3.0 or greater

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polling rate issues are simply a thing of the past we got kyle one of our

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engineers to solder on the connections needed for our ldap system from NVIDIA

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and check the click to photon latency using the fastest mouse and keyboard we

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have at eight kilohertz and four kilohertz respectively speaking of

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keyboards make sure you get subscribed so you don't miss out our upcoming video on the data hand

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what is it exactly guess what regardless of which

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ports we used the results were the same or within margin of error whether we

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added an extra keyboard input while firing off 100 clicks or not right ports

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active use about 49 milliseconds wrong ports

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49 milliseconds right ports 49 milliseconds

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one right one wrong 49 milliseconds every single time but

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let's try it you know just to make sure that in a real world scenario with a lot

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more random input your usb ports aren't going to cause you to miss that crucial

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headshot all right let's uh let's pull this back a little bit

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i'm just going to play cs go first man for a little while i was playing with a

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friend and the friend was in finland so i was playing with a bunch of russians

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and it's like 300 millisecond lag wow you got all the all the money all right

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let's go with the og latency feels pretty good like everything i'm doing is pretty much

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instantaneous all right well i'm not noticing any hitching or anything when i'm moving

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around especially not like pressing buttons on the keyboard i would expect

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there to be a difference if i if like if there's a difference i would be able to

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see it with this monitor since it's like 360 hertz i'm not mistaken yeah so the

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overall experience i'm having right now is pretty much the same as the

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experience i had when plugged into the usb 3.0 port yeah oh right sorry the

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lightning gaming ports yeah this is the plebian usb 2.0 ports that you'd

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normally probably want to plug your keyboard and mouse into because they don't need that much data man this game

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mode is kind of weird because everybody's everywhere practice thoughts oh yeah it is deathmatch um

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casual dust should be a little more tactical and less frenetic in this case

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which i mean i don't know if that's better or worse for

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like twitch reflexes but i can't hear anything so it would help to know where

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everybody's coming from generally

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that was not a headshot but it was what i was aiming at

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also not a head shot so i'm not clicking heads i don't think this sensitivity is

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quite what i'm used to either but it's closer to it actually one thing that's

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kind of weird about having a really high refresh rate is every little twitch that

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you make whether you mean to or not is registered

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so like as i'm trying to aim like i'm like constantly trying to readjust

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yeah let's try doom there's a second yeah there it is

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yeah i'm on the 2.0 ports that's why i'm dying right now

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here we go i got some health all right let's let's switch it over to the

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lightning gaming boards cause like so far like i haven't been dropping inputs

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i haven't noticed any hitching my aiming's been okay even what's that

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mouse cursor doing there yeah i'm not noticing a big difference

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here chief are you surprised anyway no i mean we might see a big difference if we

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were like saturating the bandwidth or the like the controller but that's not

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what they actually advertise like they advertise a stupid little

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oh no you're pressing keyboard buttons and now your your game is

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your mouse is no longer accurate anymore it's it's skipping around every time you

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press the w key your mouse needs to wait it's not quite how that works

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like even if it does have to wait even if they like maybe they have like an

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oscilloscope thing where they've actually

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verified that it makes a difference if it doesn't make a difference in frames

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in your game does it actually make a difference and as of right now

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it does not appear to be making a difference i don't know maybe you could convince

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yourself out of placebo that you're getting a better gaming experience but

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yeah i'm not calling bs this graph though

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that's bs unlike our sponsor crucial thanks to

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there you have it another example of why you shouldn't just buy products with

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random gaming labels on them if you have a better application for

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multiple usb controllers on a single board i can think of a few let us know

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in the comments and if you like this video make sure to check out our how motherboards work turbo nerd edition for

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a little bit more information on well how all this works