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cocoua

macrumors 65816
Original poster
May 19, 2014
1,056
655
madrid, spain
Hi, I'm working with large videos for tutorials made with iPhone , the problem I find is when I transfer them to computer it took a lot, 60GB (1h high quality) can take about 80 minutes, I have to do it often, and sometimes the transfer stops because "something" (name it…)
I've been doing test and I found something weird, I'm on a Macbook retina 15" 2012, with USB3 and two ports, one external drive, 1 iPhone 7 and 1 iPhone 11 Pro, no matter how I connect the two iPhones, iTunes only reach 30MB/s, if I use iTunes and iMazing, each with an iPhone, both give 15MB7s each, so total of 30MB/s, so I think it could be something in the mac, but both ports gives 90MB/s with the external drive…

it seems the port, either with 1 iPhone connected or with 2 iPhones through a USB 3 hub, gives the same 30MB/s, no matter if I use only iTunes or iTunes and iMazing each with an iPhone…

any thoughts? can it be a port limit somehow? if 30MB/s were the iPhone limit, 2 iPhones should give 60MB/s combined, isn't i?

I can't understand why iPhone "Pro" still is having an 20 years old tech as is UBS 2.0…
 
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