usb c data transport speed

After watching the iPhone 15 event I am curious what market benefits from the fast transfer speed other than pros who need pictures and videos on their Mac’s really quickly.

Posted on Sep 17, 2023 6:05 PM

Similar questions

iPhone 15 Pro Not Always USB 3.1 Speed I got an iPhone 15 Pro Max and I've done some data transfer tests. I've tested transfers to a Late 2015 iMac 27", a 2017 13" MacBook Pro, a 2020 Mac mini M1, and a Samsung T7 SSD. The iPhone is only recognized as having 480 Mbps USB speed for all computers even though it's connected to a USB 3.0 or 3.1 (old definition) port, or a TB4 port with a cable capable of 5 or 10 Gbps. This is either connected directly to either computer's USB A/C ports for the iMac and MBP, or the TB4 port on the Mac mini, or via a hub that is supposedly rated at USB 3.2 Gen 1 (10 Gbps). Yes, the TB4 port when being used as a USB-C port will only have a max speed of 10 Gbps. Actual transfer speeds of a couple different movie files that are 15 - 20 GB in size shows no better than about 280 - 320 Mbps for all 3 computers. And these speeds are independent of the type of SSD I am copying to. Internal MBP (SSD) & Mac Mini, Samsung T7 (SSD) connected to the iMac, or Samsung T7 connected to the MBP. Black Magic speed tests show normal R/W speeds for these drives for each computer, so the drives are performing as expected. The Mac mini was the slowest interestingly enough at around 650 - 700 MBps R/W. If I hook up the Samsung T7 SSD directly to the iPhone I get much faster data transfer of 2428 Mbps (303.5 MBps). Still much, ,much slower than the theoretical max of 1000 MBps. I'm using the USB-C cable that came with the T7 for the iPhone to T7 and iPhone to MBP/Mac mini tests so I know I'm using a cable rated for 10 Gbps. I also have a 2nd 3rd party USB-C cable and System Report and speed tests confirm it's a 10 Gbps cable. So, unless I'm missing something, it appears Apple has intentionally throttled the iPhone 15 Pro's data transfer speeds over USB-C for both Intel and at least M1 machines to USB 2.0 speeds. Might as well get a regular 15 if you don't really need the Tele lens. This is unacceptable. The whole point of giving the Pro phones a 10 Gbps port, IMO, was to allow us to transfer files to a computer at USB 3.1 speeds, NOT USB 2.0 speeds. Yeah, we can record directly to an SSD or even a fast SD card. And we can transfer to an SSD directly connected to the phone at much faster speeds, but this isn't the normal workflow for most people I would imagine. For sure some true professionals that DO record directly to SSDs from their cinema, DSLR, and mirrorless cameras do this, but it's never been an option for iPhone users until now. We've always struggled to get our large movie files off the phones via Lightning, or worse, AirDrop/Wi-Fi. I've never been successful transferring large files via AirDrop or Wi-Fi. It always fails, so I always use Lightning. Has anyone else experienced this, and have you found a solution? Did I miss something?
8332 7
What‘s the fastest way to transfer data from an iPhone 15 Pro Max to a 16 Pro Max? So … I'm getting my new phone today and will need to transition the data and settings. What‘s the fastest way to transfer data from an iPhone 15 Pro Max to a 16 Pro Max? Restore from a backup on a Mac via USB-C Direct transfer from the iPhone 15 Pro Max Restore from an iCloud backup over a Wifi 7 mesh using a 2.2 gbps/350 mbps internet connection I know that direct transfer used to be the answer, but now I'm curious if that's still the case given higher USB-C speeds (10 gbps) and higher internet and Wifi 7 speeds. Now that I've transitioned to a Deco Wifi 7 mesh, my office iMac gets the full 2.2 gb/350 mb speeds using a 10 gb LAN port on my office satellite using Speedtest.app. Actually my last speed test to Comcast in Chicago got 2297/357 mbps. I would think that a Wifi 7 connection to the office satellite should be something similar, though I'm not sure if Wifi 7 is full duplex and there would be more latency than on ethernet. So … what do you think?
5124 5
Which USB C cable is needed for iPhone 15 Pro to support 10 Gbps transfer rates? I'm reading the USB C cable provided with the iPhone 15 Pro is USB 2, and will not support 10 Gbps transfer speeds. Is this accurate? If so, what USB C cables from Apple (or elsewhere) support USB 3, and the higher transfer rates? [Re-Titled by Moderator]
1533 2

4 replies

markwmsn

Level 6

16,715 points

Sep 18, 2023 4:08 PM in response to mickeddie

Besides photo and video transfer, the increased transfer speed can help with backing up phones to Macs (or PCs), restoring phones, or loading data onto phones.

Sep 17, 2023 11:02 PM in response to mickeddie

The "old" Lightning data transfer is limited to USB 2 speed ("up to" 60 MB/s or 480 Mb/s) which by today's standards is not much if there are often large movies or many images to be transferred (either with Image Capture or directly to Photos).

The higher-end iPhone 15 Pro and iPhone 15 Pro Max support USB 3.1 ("up to" 1250 MB/s or 10 000 Mb/s) so it is about 20x faster.

...in practice those "up to" figures can usually be multiplied with ~0.5...

Sep 19, 2023 7:14 AM in response to markwmsn

> loading data onto phones

That is one area where I feel the need for speed. I never know if syncing to iPad will take 30 minutes, 4 hours, ...or whether it stalls at some point.

BTW I usually refrain from touching Photos library but as a last resort I have a few times deleted "iPod photo cache" and usually that has solved syncing glitches.

Sep 19, 2023 6:35 AM in response to mickeddie

mickeddie wrote:

After watching the iPhone 15 event I am curious what market benefits from the fast transfer speed other than pros who need pictures and videos on their Mac’s really quickly.

I suspect that, for the majority of users, it won't make a difference. I don't remember the last time I connected my iPhone to my computer with a cable.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

usb c data transport speed