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Very slow file transfer (USB 3.1 looks like USB 2.0)!

Melqui
Zen Master I

‎05-03-2020 02:46 AM - last edited on ‎01-16-2024 01:18 AM by Community Manager

I have very slow file tranfer with:
ROG Phone II Global 512GB-12GB with latest ROM
A Original USB-C to USB-C cable
A USB-C to USB 3.0A cable
Notebook with a USB 3.0 type-c port and usb 3.0 type-a port
Looks like the phone doesn't activate USB 3.0 speed tranfer, only 2.0 speeds!!!
(Phone without other problems, hyper charging normally, etc)
Please solve this!

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4 REPLIES 4

Melqui
Zen Master I

‎05-03-2020 02:47 AM

PS.:
USB-C to USB 3.0A cable and notebook tested with a Galaxy S9+: Turbo speeds, ubs 3.0 activated!
Using ROG II side port to test too!

USB-C specs notebook Acer F5-573G:
USB 3.1 Generation 1 with data transfer speeds up to 5 Gbps
Charging external devices via USB-C (5 V ; 3 A)

ROG Phone II only supports USB 3.1 and USB 2.0? Doesn't supports USB 3.0?

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Gustav_ASUS
Community Legend III

‎05-08-2020 05:43 AM

The stock USB-C to USB-C cable is 2.0, so no surprises there.

Melqui

PS.:

  • USB-C to USB 3.0A cable and notebook tested with a Galaxy S9+: Turbo speeds, ubs 3.0 activated!
  • Using ROG II side port to test too!
  • USB-C specs notebook Acer F5-573G:

USB 3.1 Generation 1 with data transfer speeds up to 5 Gbps

Charging external devices via USB-C (5 V ; 3 A)

ROG Phone II only supports USB 3.1 and USB 2.0? Doesn't supports USB 3.0?


View post

You should be achieving 3.0 speeds by using your 3.0A cable and the side port on the ROG II. Have you tried using a third USB-C cable to make sure that the cable is not at fault? You can also try switching the orientation of your cable and/or making sure that your side port is clean.
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Melqui
Zen Master I

‎05-09-2020 12:48 AM

I tested ROG II with a USB-C - USB-A 3.0 cable. This cable works at 3.0 speeds with Galaxy S9+, with ROGII (side port), only 2.0 speeds.
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OPC
Zen Master II

‎05-10-2020 04:43 PM

MacBook Pro 2015, using USB-C to USB-A Samsung cable bundled with Note 8 makes 3.0 transfer speeds. Also with DJI OSMO 3 cable (also USB-C to USB-A).
With both cables 499 MB mp4 file was transferred in 18 sec.
With Samsung cable since the A10 upgrade it's important to plug the cable into the Rog 2 side port with the correct side of the jack facing up.
Youtube support channel