Correction: At 0:12 the text on screen says Mbps when it should say MBps. We're working on getting a fixed version uploaded! Thanks everyone who pointed that out.
There were specialized cables in the past that did that but required software. A main reason you can't do it normally is that USB is based on serial, so the send/receive wire placement matters on the connector. To get around this the USB spec uses the shape of the connector to indicate which side is the host and which side is the peripheral. Plugging in a USB A connection on both ends to hosts would usually cause them both to send 5 volts down the line and try to transmit to each other's transmit wire.
CES 2024 has probably been the best CES showcase I think I have seen in years - Cool new real world Thunderbolt applications that can be enabled via software (wish it gets integrated into USB4) - Amazing new laptops that are finally on par and more creative than Macs (dual screen, Zephryus G14, etc) - Bleeding edge display tech with super bright displays, gen 3 QD-OLED and microLED slowly making its way into the market with transparent and bezel less displays) I'm so excited for the tech that will be coming out this year. We finally seem to be ramping up in competition in pretty much all segments in tech yet again - similar to how CPUs massively improved after Ryzen and Apple Silicon
@@MrMediator24 Yeah USB4 is more of name that doesn't really mean anything. Everything in USB4 is optional. And in my original comment I meant, that this new protocol would be requirement is the next version of USB, like USB5.
@@LtdJorge Thunderbolt always has been Intel only, some stuff goes back into USB but not all of it, Intel makes sure of that that no one except Intel and Apple (who also have a stake in it) can implement that stuff.
Yeah it is great, but I will need to upgrade every computer at home and so far I have only plans to buy a new laptop this year. So probably will take at least 5 years to become totally standard.
@@ligametis from what i gathered, the sauce is in the cable, and the software, more specifically the software. If I were to guess, you could just buy a PCIe thunderbolt card or two, and just plug it into whatever computer you need to transfer between, transfer stuff, and then take out the cards once not needed .
@@Bomkzupstairs Wi-Fi is terrible so I can download downstairs on Ethernet with laptop and transfer to desktop upstairs, this'll be great as long as it's not too expensive
@@Bomkz unfortunately there's no such thing as a PCIe thunderbolt card or two. If your motherboard supports a (one, singular) thunderbolt card then you might be able to install one (singular). If your motherboard is like 99% of motherboards you won't even have that option, and if you connect any old thunderbolt card (ASUS ThunderboltEX, MSI THUNDERBOLTM4, GIGABYTE GC-TITAN RIDGE, etc.) you're going to find out pretty quickly that the card requires a header that your motherboard does not have, and without that header it will simply not work. This header is called JTBT1 and if you don't have one, you don't have Thunderbolt and no expansion card can give it to you.
I dont always like vertical omnidirectiinal antennas, but when I do, they should look like they will attach to my face and make an alien explode out of my stomach.
@@WarlordEnthusiast Portable storage for games due to space limitations on some devices allowing you to play games straight from the outside SSD/Nvme device onto the laptop or supporting portable console that doesn't have expandable storage due to the insane speed, there would be no noticeable issues.
@@supersuede911 meter cable limitation REALLY gimps it. If they can get around that somehow it would be brilliant. Wi-Fi 7 sounds really exciting, though.
This is something that has always blown my mind, how we can't get input onto a laptop screen from another source, like in an ideal world this would be a basic feature
Dell even had a few AIO PC models that had both HDMI out AND HDMI in. It makes total sense as then you can even plug consoles in too. Its kinda sad as in the early days of video on PCs I believe capture cards in preview mode would DMA the image directly into the video buffer. It took so much CPU to process video, you didn't want the preview using all the CPU. This mean't you had a very low latency preview. Now you might sometimes get a low enough latency in OBS but its not guaranteed as you need a high-end PCIe capture card to have a hope of it being fast enough.
@@alexatkinIf it's anything like the Alienware Alpha, it's an HDMI passthrough port, not an HDMI capture card or anything like that. Source: I excitedly bought a used Alienware Alpha 5 or so years ago under the same misconception.
Incredible details on the Thunderbolt capabilities and the advancements in WiFi 7 technology. The potential of having an essentially latency-free gaming experience is mind-blowing.
Thunderbolt has supported autoconf point to point ("bridge") networking for a long time. Apple had it first but windows and even linux have supported it for a while too.
Except the user experience of thunderbolt networking absolutely sucks on Windows and Microsoft has done nothing about it. Plug 2 computers in together and nothing happens, you'll need to manually change your network and file sharing options before this will work, and only in a hacky workaround way.
@@fjjwfp7819 not in my experience. Tried this just to see what would happen with my TB4 PC and my TB4 laptop. Plugged them together, a new shortcut appeared on each desktop showing the existing SMB shares of the other device. If there are network shares already setup theres nothing more to do for sharing files. I think it only did like 2-3 Gbps from one NVMe to another but I'd have to retest that. It's been a while and I'm not sure about the speeds.
Apple even has target disk mode using thunderbolt that turns the whole device into a thunderbolt drive and has since the beginning, they even had a FireWire target disk mode. This isn’t anything new, Apple mastered this years ago. It’s only a big deal because M$ is showing it off on Windows.
@@getoffmeluckycharms The trouble with Apple is they also like to randomly remove features. For example you used to be able to use an old AIO Mac as a display and they just decided to completely remove it from the OS.
Hades has an in-game timer that shows centiseconds, so even without a high-speed camera you could have roughly verified whether the latency is under a frame by just taking some photos of both timers side-by-side.
I think what everyone missed was framebuffer to framebuffer. Two devices talking directly over the bus. This is closer to omnipath or infiniband over thunderbolt
Linus is just a legend! Even on a show floor, even in those conditions with that amount of time and even with a boring topic like WiFi he still manages to make a 14 minute video THIS exciting. I tip my hat to you sir 🎩
Higher QAM values are great, but rare outside of zero attenuation, zero interference scenarios. That is to say, if there's a wall, you probably won't get to leverage those super high QAM categories. In fact the best features of newer Wi-Fi standards are *not* the ones that improve theoretical performance in overall scenarios, but the ones that marketing overlooks that improve real world performance in saturated spectrum scenarios.
It's crazy when you think about it. Your PC likely has (1) 1 gigabit port, and (6) 10 to 40 gigabit ports. Which one do we use for data transfer... and which one do we use to plug in keyboards?
call me a noob, but on some cases and/or motherboards, arent they colour coded? i cant give an example cuz i dont know any example on the top of my head
USB3 is blue while USB2 is black typically but by USB3 I mean USB 3.0, 3.1, 3.2, etc... and that's only USB type A ports, USB type C, as far as I know, has no established color-coding convention. @@bumb189
USB is a pretty bad carrier for many reasons. still. issues with bus traffic and consistency is one because it can't compete with dedicated PCIe buses vs chipset sharing. it's possible now because they just gave (USB4 PCIe capabilities. aka thunderbolt
Heck yeah, USB A to USB A PC Transfer, that was ancient concept. With thunderbolt essentially PCIe, the problem becomes who or how to write the driver, because eventually it will all be used by the OS.
I´ve saw this yeeeeears ago, at least the file transfer part. and before USB, through parallel, and serial, PC2PC and even LANs and WANs by means of parallel/serial
LMAO, the thunderbolt transfer software looks exactly like some software that came with a USB 2.0 transfer cable years ago for a Samsung Ultra Mobile PC - it had two USB-A connectors and appeared as an autorun CD on each PC. You'd load the software, get an interface that looked basically identical, and could transfer software between the connected PCs without installing any drivers.
Intel's "Thunderbolt Share" is (as far as I can tell) actually just a new marketing name and a slick software suite for "xDomain" which is a technology that's been part of Thunderbolt since TB3, and I think is also part of USB4?. In fact I've used it myself to download games from one nearby laptop to another in an environment with bad Wi-Fi signal - no additional drivers required, just plug the cable in and it creates a point-to-point "virtual ethernet" network connection in Windows which can be used automatically by for example Steam library sharing. The screen sharing thing might be new though?
Looks like that is probably what this is. Regarding the screen sharing, the "xdomain" stuff can be configured to DMA ring buffers between the two sides... and who says those DMA buffers can't be GPU framebuffers if the GPU drivers were to allow it. My question would be whether there's going to be a *standard* defined specifically for framebuffer sharing over xdomain, or if this is just going to be some proprietary Intel implementation that is briefly supported before eventually fading into obscurity.
yes, looks like it is just a rebranding / renaming of the feature - not of a software suite. When you plug TB3 laptops toegether it just works like that, does not need extra sofware.
The thunderbolt thing feels a lot like FireWire. All the cool stuff Apple did with it I wish had been available everywhere else. Plugging a Mac into another Mac with FireWire and target disk mode was awesome. Glad to see a lot of similar features in Thunderbolt. Looking forward to using it.
Wicked cushions are good they seem to be holding up better than the OEM ones for me on Bose QC 35 II the stitches was failing ripping apart so I had to replace them like once a year and I found the amazon Chinese ones lasted the same til I found these wicked ones which said they are upgraded durability as they are stitched and glued together and so far so good on durability
I bought a set to replace my worn out Beyerdynamic cushions from one of the older LTT ads and they were way better than I expected. The cooling gel really works!
Been using 4096 QAM for the ISP I work for. Technically can go up to 8192 QAM on our OFDM channels with OFDMA on our upstream. Even going to mid splits and sub splits. I love when subjects like this come up
There's already DisplayPort Alt mode like PSVR2 uses, that carries DP directly, its just no PC VR headset manufacturer bothered to use it due to only RTX 2000 series having the USB-C ports hardwired for it. NVIDIA then ditched it on the desktop cards to save a few cents, though I think its still implemented on laptops.
All of this is genuinely just so cool, it makes me really excited. I actually kinda want a 16x16 Wifi 7 AP. I know it would be ridiculous but it’d be kinda amazing.
He mentioned 'passive' cable. So if you get a powered Thunderbolt cable, it can amplify the signal to reach a longer distance. Alternatively, you'd want something like this to go over fiber optic transceivers for serious distance.
On my desk I have a Mac to do light stuff and a windows to game/work, it takes me like 10sec to switch computers If I can just connect both with a thunderbolt cable and make the switch seamlessly, I’m all in
That direct cable thing is awesome. Bring it on 👍 With regards to that spider from hell router monstrosity... Sorry, but where the hell am I going to hide that? I really hope there will be some sensible designs. Also, hoping these routers will have decent connections on the wired side. And then I dont mean just 2.5Gb, but 5 or even 10Gb ports.
this looks super cool, file transfers between computers over thunderbolt would be so much better for temporary situations instead of going through the annoying tedium of setting up network shares
remember when we had local serial connection using our serial ports ? (null-modems I think?) The only reason we're getting this variant is because Intel decided to keep the info to itself instead of sharing it. It's not a super secret invention or a high tech innovation. The hardware could do it all along. It is pure greed that stopped it from being shared and we need to install 'special software' to use it, because it isn't available at the driver/OS level.
Regarding Thunderbolt Share: But Leenous, you've been able to do this (this is considering the length of the cable) over ethernet since... well at least since 2012 when it was my first experience connecting 2 computers via ethernet and setting the nic's to the same IP subnet.
He isn't talking about "being able to link two computers together", he's talking about being able to link them together at up to 40GBit without the overhead of actual network interfaces.
@05:26, if you slow down the playback to 0.25x, there's white flash on the handheld, and a lag to when it shows on the laptop, but it's super short and amazing. EDIT: Also, your Samsung Note 9 can record at 240fps. That's fast enough slow mo to see the latency on this setup. Maybe you weren't allowed to record it.
Thunderbolt had that for years, as somebody already pointed out, but I'm waiting for a thing like a zero-ethernet USB cable like the zero-modem serial cable back in the days, I know something similar to this exists, but I believe they actually uses USB ethernet adapters in the middle, and not able to fully utilize full bandwidth of USB.
A even better example of when the thunderbolt connection would be useful is for road trips or camping where you don't have a WiFi network and don't want to set up a hotspot that will be slower than this.
I know this is nitpicky, but make sure to note that 800 Mbps is NOT Megabytes at 13s in... that's Megabits. 800 MB/s is correct, whereas if its lowercase Mbps that is bits.
I remember years ago using Asus Crosslink USB dongles to transfer files from one PC to another, as well as share the network access... It was slow and janky, but lord was it useful. This being part of the specs is cool.
This reminds me of when I was in high school we used to have a program on our high schools computers that allowed us to transfer files from computer to computer via a Serial cable
I’ll never forget the first time I did a large file transfer between two Macs with an original thunderbolt cable. One of the many reasons I’ve daily driven macOS for years and years.
It's funny, nearly a decade ago I got a USB wormhole cable that allowed seemless connections between nearly any two devices without installing anything (drivers were automatically installed). Win-Win, Win-Mac and even Win to Android. This enabled mouse/keyboard control across both devices, copy/paste or drag/drop file transfer and even sharing of some other peripherals. Data rates were slow but it worked surprisingly well. Most people I showed couldn't believe it. There are obvious security concerns and they didn't seem to have widespread use but I haven't heard much about it in recent years. Modern versions of this with USB4/TB4 speeds would be amazing.
Reminds me of when Nintendo Game share feature from the 1980s of just transferring game data between Gameboys and console with a single wired connection...
i remember this cable from a video you made a couple years back, but it was blurred and i was always curious to see what it was. glad to finally find out
