tl;dr: Intel made Thunderbolt 3 royalty free in 2018, so now it's essentially being adopted as USB4. I had to look up what the point of 40Gbps was, and the industry evangelization site https://thunderbolttechnology.net/ explains that it will allow driving one 5k display or two 4k displays, which is not possible with the 20Gbps offered by USB 3.2 or Thunderbolt 2. This also helps external GPUs, where TB2/USB3.2 is the…
Does 40Gbps mean two 4K displays daisy chained?
USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
71–80 of 279 posts
Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#72tl;dr: Intel made Thunderbolt 3 royalty free in 2018, so now it's essentially being adopted as USB4. I had to look up what the point of 40Gbps was, and the industry evangelization site https://thunderbolttechnology.net/ explains that it will allow driving one 5k display or two 4k displays, which is not possible with the 20Gbps offered by USB 3.2 or Thunderbolt 2. This also helps external GPUs, where TB2/USB3.2 is the…
Does 40Gbps mean two 4K displays daisy chained?
Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#73Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#74Earlier quoted context omitted.
My hope is that Type-C is going to be all of those things so that in the future, I only need one kind of cable (until the inevitable new plug that supplants it, but hopefully universally used as well). Currently, I have to pay attention to a USB3 Type-C cable vs a Thunderbolt 3 cable as there is a difference (I was shopping for a long TB3 cable and was unable to find one. Instead, seems the longer ones tend to be USB…
This is not a realistic expectation, unless you are OK with your "one cable" being 0.5m long. The "one-cable" thing is a dream, unfortunately.
Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#75Earlier quoted context omitted.
My hope is that Type-C is going to be all of those things so that in the future, I only need one kind of cable (until the inevitable new plug that supplants it, but hopefully universally used as well). Currently, I have to pay attention to a USB3 Type-C cable vs a Thunderbolt 3 cable as there is a difference (I was shopping for a long TB3 cable and was unable to find one. Instead, seems the longer ones tend to be USB…
This is not a realistic expectation, unless you are OK with your "one cable" being 0.5m long. The "one-cable" thing is a dream, unfortunately.
Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#76Not USB 3.2 Gen 2x2x2?? Come on, consistency people!
Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#77Here's an idea, let's make different connector shapes depending on the cable/connector's capabilities, lets do one for connectors that support display, one for power, one for thunderbolt, that way they're easy for the average consumer to identify! Oh wait that's the issue USB was supposed to solve in the first place....
TB3 is already the "all of the above" cable, so hopefully USB4 will be as well.
So the end result is that no one actually has “all of the above” cables, but rather a collection of cables with different, often invisible constraints. Maybe the move to free licensing will bring TB cables down to USB cable prices, but it remains to be seen.
Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#78Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#79Earlier quoted context omitted.
I'm no means an expert but up to USB 2.0 there were 4 pins (2 for power and 2 differential signals for bidirectional data) With USB 3.0 they added 4 more signals for separate transmit/receive. Initially they used 8b/10b encoding and then switched to 128b/132b encoding. They also increased the signaling rate with each generation. Also in the USB 2.0 and earlier the higher level protocols were kind of inefficient with…
> With USB 3.0 they added 4 more signals for separate transmit/receive So is it not actually serial any more?
Re: USB4 Specification Announced: Adopting Thunderbolt 3 Protocol for 40 Gbps USB
#80Does this also mean that soon every computer will be making noise/radiating waves around 40GHz? Can someone with more depth in this area shine some light on this?