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A comment on Apple finally put USB-C in new iPhone, but limited to 23-year-old USB 2.0 speeds. Parent comment

Re:Apple finally put USB-C in new iPhone, but limited to 23-... by withinboredom on Wednesday September 13, 2023 @02:26PM (#37499881)
> What sort of file is a "random 1-off thing" that a casual user might need to transfer, unexpectedly, over the wire, which is so large that a speed of 0.48 gigabits/sec is extremely slow?

In my single anecdata case, out of 15ish years of owning phones, it was a 4kx60fps video of a recital and about 30gb if I recall correctly.

Also, you are doing a classic mix-up of mega-bits vs. mega-bytes. A 30 gb file transferring at 480 megabits per second takes around 5 minutes with no protocol overhead (about 20% speed reduction) and assuming the flash on the phone can keep up and isn't doing anything else on the wire (probably another 20-40% reduction in transfer speed).

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Re:Apple finally put USB-C in new iPhone, but limited to 23-... by quenix on Wednesday September 13, 2023 @02:31PM (#37499946)
Anecdata taken.

How did I mix up megabits and megabytes? I mentioned a 5 gb file transferring at the same speeds takes a minute or so. That tracks with your 30 gb:5 minute calculation.

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Re:Apple finally put USB-C in new iPhone, but limited to 23-... by withinboredom on Wednesday September 13, 2023 @02:33PM (#37499973)
You said Mb/s not mbps.
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Re:Apple finally put USB-C in new iPhone, but limited to 23-... by quenix on Wednesday September 13, 2023 @02:48PM (#37500169)
Okay, since we’re being pedantic, I still think you’re wrong. Mb/s is equivalent to Mbps.

It would have been different if I wrote MB/s (all caps)

MB/s = megabytes per second

Mb/s = Mbps = megabits per second.

See also https://www.techtarget.com/searchnetworking/definition/Mbps

> Megabits per second (Mbps) are units of measurement for network bandwidth and throughput. They are used to show how fast a network or internet connection is. Each Mbps represents the capacity to transfer 1 million bits each second, or roughly one small photo per second. It may also be expressed as Mbit/s or Mb/s.

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Re:Apple finally put USB-C in new iPhone, but limited to 23-... by withinboredom on Wednesday September 13, 2023 @03:06PM (#37500386)
Ah yeah, that's fair. I just reread my reply and realized it came across as much shorter than I intended, sorry for that. I wasn't trying to be an antfucker.
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