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USB Cheat Sheet

fabiensanglard.net

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Re: USB Cheat Sheet

#171

Post by dwaite »

CamperBob2 wrote: post #26
masklinn wrote: post #10

Some of the entries seem incorrect: "USB 3.2 (USB 3.2 Gen 2x2) and "USB 4" (USB 4 USB4 Gen 2×2) should have the same nominal data rate of 2500MB/s, they're 2 lanes (x2) of 10GB/s. Though they are apparently coded differently electrically, so they're distinct protocols. The tables would benefit from mentioning the coding (8/10 or 128/132) as IMO it's one of the most confusing bits when you see the effective data rates…

He goes off the rails earlier than that, by saying that USB 2.0 is "also known as" Hi-speed. HS is only one data rate supported by the USB 2.0 standard; it incorporates both full speed from the earlier standard and low speed, which isn't mentioned at all.

Right, per his chart "Full Speed" should be known as USB 1.1 Full Speed and USB 2.0 Full Speed.

Re: USB Cheat Sheet

#172

Post by jsjohnst »

paulmd wrote: post #112
jbverschoor wrote: post #82

Earlier quoted context omitted.

Apple just released a €159 cable

3m is beyond the max cable length specified by Thunderbolt, so it requires active extenders (they're hidden in the plugs) and tight manufacturing and shielding. You're paying extra for the ability to break that max length spec, and it's one of only a handful of products that do it. The only other one I'm aware of is the Corning Active Optical Cable series which costs $360 for a 10m Thunderbolt 3 cable or $479 for a 3…

> 3m is beyond the max cable length specified by Thunderbolt, so it requires active extenders (they're hidden in the plugs) and tight manufacturing and shielding.

The ICs at both ends, tight manufacturing, and shielding are required even for a 0.5m Thunderbolt cable.

For a 3m cable, the manufacturing tolerances and shielding go up even higher, but they were still required even for short cables.

Re: USB Cheat Sheet

#173

Post by Aragorn2331 »

fabiensanglard wrote: post #170
Aragorn2331 wrote: post #90

Hello Fabien ! I saw on twitter that you had built a gaming setup, can you write an article on your blog as you did for your silent pc ?

Here it is https://fabiensanglard.net/d2r/index.html

Amazing setup for amazing game ! Thanks for this post, i love to read you :-)

Re: USB Cheat Sheet

#174

Post by PowerBar »

In the "USB-A/B" section, they're all labelled "Type-A", the 3rd and 4th should be labelled "Type B".

It's also missing - mini-b 4 wire (older phones, etc) - micro-b 4 wire (most electronics prior to type c) - micro-b 8 wire (mostly seen only found on external 2.5" HDDs)

There were also a bunch of other connectors (mini-a, mini-a/b, etc) but they are very rare.

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