USB4 vs USB3 | EXPLAINED

[@id104335409]

The best explanation ever. Thank you!

[@aa-xn5hc]

Brilliant video

[@tristankordek]

USB3 is the failure of the decade and USB4 is still a mess... When USB-IF understands that we want every cable encountered on the street to be able to do the same, 40Gb / s, 240W, support for all protocols / features (LAN, DP, HDMI, etc.) and only the devices at both ends will depend on how much of this miracle they will use .

[@sparfis]

if I plug usb 4 ssd in my usb 3 computer it will work?

[@joydboy1382]

Same question

[@blank_white_paper_revolution]

it is said backward compatible.

[@3D_Printing]

Tongue in Cheek : I'm waiting for UPB, Universal Parallel Bus; 8 data cables + 4 power 250 Volts 250 Amps cables : 8 data cables to provide 256 GB/s (Giga Buad) not slow giga Bits :) Optical LASER maybe

[@MaddJakd]

I still will never understand why they changed the names of the original 3.0 (clearly I'm not alone) There is literally no logic there.

[@ShadowriverUB]

It identify spec that USB was based on, the gen 1 and gen 2 identify speed modes, that means in 3.2 spec there changes to gen 1 or diffrent aspects that effect all speed modes even thru there compatibility, most notibly 3.2 can't use USB-A. Also note that 2x2 is dual lane gen2 mode that use extra pins in USB-C which allows to push double of data in same bandwidth, not some new speed mode, there's also 2x1

[@psoon04286]

Does Sabrent make a dock/hub for me to connect a couple of high speed SSD portable drives that might match the M1 Mac Mini’s internal drive read/write speeds?

[@BaNuj]

question - if some device has for example usb 3,1 gen 1 in it, can i use thunderbolt 4 on it? It would not work completely or just be downgraded to usb 3,1 gen 1 port speeds ?

[@Валерий-ц9л6й]

It will downgrade

[@MaddJakd]

It's the lowest common denominator. Always been that way.

[@scd6969]

you failed to mention that one key difference between USB4 and Thunderbolt 4 is that they are really not the same, as USB 4 is wholly backwards compatible with previous USB standards, whilst Thunderbolt 4 is only compatible with USB4.

[@amigatommy7]

USB 4 can be faster as Thunderbolt reserves some speed for non-data. Thunderbolt 30 mb/s data 10 reserved for non-data; USB4 40 mb/s data

[@MrJavapiet]

Nice explained

[@watercat1248]

I still I have not see eny device that use usb4 and it 2022 wean send this comment

[@adyady3099]

tons of laptops with thunderbolt 4 including my 2021 lg gram, thunderbolt 4 uses usb 4

[@watercat1248]

@@adyady3099 is thunderbolt the same with USB 4 ?

[@adyady3099]

@@watercat1248 is like the premium version of USB 4 built on USB4, thunderbolt 4 has the minimum speed requirement for certification higher than usb4 but usb4 can have the same speed as thunderbolt 4 if they don't cut costs, basically thunderbolt 4 guarantees 40GBps where usb4 guarantees 20 Gbps but can go to 40Gbps as well

[@watercat1248]

@@adyady3099 okay that sounds similar but I personally have a laptop that has thandeebold 3.2 is this USB 4 or not

[@adyady3099]

@@watercat1248 no, only thunderbolt 4 is using usb4 but thunderbolt 3 can have similar performance with usb 4 if usb 4 is using the 20Gbps bandwidth