Slow Speed Transfer MacBook Pro M1

Hi everyone! I'm having an issue with the speed transfer using WD Elements 4tb HDD. I'm connecting the disk to the thunderbolt usb-c port through a cable that goes from the disk to the mac directly. I also tried a Mac adapter from usb-a to usb-c but didn't work. My trasnfer speeds are 60MB/s aproximately, but when I tried the same disk with the same adapter and cable in a MacBook Pro 2019 it gives me speeds up to 100MB/s. The disk says that the disk can go up to 5Gb/s. Here are some screenshots.

Does anyone knows the reason of this problem and how to fix it? Is it M1? Ventura?

Thank you!

MacBook Pro 16″, macOS 13.3

Posted on Apr 18, 2023 9:00 AM

Top-ranking reply

Grant Bennet-Alder

Level 10

141,235 points

Posted on Apr 22, 2023 8:33 AM

MacBook Pro 2019 and every model-year MacBook Pro 16-in have USB-C ports.

Use JUST your USB-C to Micro-B cable, plugged directly into a USB-C port on either computer, and your speeds should be as fast as that drive can produce.

The Apple USB-C Digital AV is not 'just wires'. it is a complex USB Hub that comes with some restrictions for some of its ports. Most of its available bandwidth is consumed in providing an HDMI connection for a display. DON'T plug any USB-C devices in there if you want them to be FAST.

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Slow Speed Transfer MacBook Pro M1

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