iPhone 15 pro max slow file transfer speed

I got a 40gb/s cable, with this cable I can transfer from my external M.2 ssd to Mac or Pc at around 900-950 mbytes per second flawlessly.


using this cable ( I got and tested 3 of them, all working superbly with an M.2 drive ) I can’t get fast file transfers through the IPhone 15 pro max.

the speed is around an usb2 speed,


in fact I can’t even record videos to my m.2 drive using the Blackmagic camera app on my iPhone. The record stops immediately.



reading on Reddit and MacRumors that tons of people are having this issue.


my Mac is a Mac mini M2 pro 512gb ssd 16gb ram with Sonoma.

my pc has win 11

My iPhone updated to the latest iOS version available.


What the heck is going on here?


Posted on Dec 21, 2023 07:16 PM

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Posted on Dec 22, 2023 01:19 AM

The problem with the app is additional ( the same problem tho).

im talking about File transfer via finder / explorer. ( and of course due the same issue with the usb-c speed, the problem reflects itself also with that app )


not only your reply isn’t helpful is also evidence that you didn’t read my post with a minimum of attention.


im talking about a REAL issue maybe software with the usb-c speed, not reflecting the advertised feature for the PRO model.


issue or misleading advertising?



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Question marked as Top-ranking reply

Dec 22, 2023 01:19 AM in response to SravanKrA

The problem with the app is additional ( the same problem tho).

im talking about File transfer via finder / explorer. ( and of course due the same issue with the usb-c speed, the problem reflects itself also with that app )


not only your reply isn’t helpful is also evidence that you didn’t read my post with a minimum of attention.


im talking about a REAL issue maybe software with the usb-c speed, not reflecting the advertised feature for the PRO model.


issue or misleading advertising?



Dec 21, 2023 11:51 PM in response to tonimining

Any reports from thrid-party apps may not fetch a solution in this forum.


If you encounter any challenges with third-party applications, the best course of action is to directly contact the app developer for further assistance. Here's a brief guide on how to do it:


  1. Identify the app developer.
  2. Visit their website or app store listing.
  3. Look for their contact information or support channels.
  4. Clearly describe the issue you are facing.
  5. Provide any necessary information they may need.
  6. Follow their instructions and provide feedback.
  7. Be patient and follow up if needed.


By reaching out to the app developer, you increase your chances of receiving accurate and personalized support for the challenges you're experiencing. To contact an App developer --> How to contact an app developer - Apple Support



How to contact a Web Publisher or the Host


Contacting a web publisher or the host of a website can be helpful for various reasons, such as reporting issues with the website, seeking permission to use content, or addressing copyright concerns. The process may vary slightly depending on the website, but here are some general steps you can follow:


  1. Check the Website: First, visit the website and look for a "Contact" or "About Us" page. Many websites provide contact information there, including email addresses or contact forms.
  2. Web Hosting Company: If you have an issue related to the website's hosting, such as reporting abuse or copyright infringement, you can try contacting the web hosting company. To find the hosting company, you can use online tools like "whoishostingthis.com" or similar services. Once you identify the hosting company, visit their website and look for contact information or support options.
  3. Be Clear and Polite: Whether you are reaching out via email, contact form, or social media, always be clear, concise, and polite in your communication. Clearly state the reason for contacting them and provide any necessary details to help them understand your request or concern.
  4. Give Time for a Response: Allow some time for the web publisher or hosting company to respond. It may take a few days, depending on their responsiveness.


Remember, always be respectful in your communication, and avoid any hostile or aggressive language, as it is unlikely to yield a positive response.


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iPhone 15 pro max slow file transfer speed

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