What are practical USB 2.0 maxs in the Real World?

Discussion in 'PC Hardware' started by avi hatotach, Oct 31, 2016.

  1. avi hatotach

    avi hatotach MDL Novice

    Oct 25, 2016
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    I am getting 15 MB/s read, and 5.5 MB/s write. Is this reasonable? How can I do better?
     
  2. Joe C

    Joe C MDL Guru

    Jan 12, 2012
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    Get USB 3.0/3.1
     
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  3. Hadron-Curious

    Hadron-Curious MDL Guru

    Jul 4, 2014
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    I am getting 37MB/s over USB 2.0 while I often get 35-40 MB/s on USB 3.0.

    I am so much annoyed with most USB 3.0 external hard drives out there in my country. They often go bad within short period of time compared to USB 2.0. I bought about 2 different products for more than 4 times within 6 months having the same problem with the logical board port getting broken. One thing I notice is that the speed of USB 3.0 is not so much different from USB 2.0 despite having a USB 3.0 port on my system.

    There are too many fake Toshiba and WD external cases from China out there. I promise myself never to buy USB 3.0 external case again.
     
  4. Joe C

    Joe C MDL Guru

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  5. DogbertCommandsYou

    DogbertCommandsYou MDL Novice

    Nov 2, 2016
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    Something is way off here, your USB 3.0 are still at a virtual 2.0 rate. Is everything a verified 3.0 component? USB port, USB cable, USB enclosure and drive should be Sata III 6.0 GB transfer rate.
     
  6. Hadron-Curious

    Hadron-Curious MDL Guru

    Jul 4, 2014
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    Both ports on Acer Aspire S7 are USB 3.0. The cable for the external hard drive is USB 3.0 and the logical board console indicates blue color light not white or red for USB 2.0 and the information are well written on the case of the drives. It is clear the external drives are fake.

    That transfer rate is theoretically possible but in the real world I doubt anyone can achieve that on USB 3.0.
     
  7. Joe C

    Joe C MDL Guru

    Jan 12, 2012
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    The blue color doesn't mean squat.
    I've seen blue usb ports that are usb 2.0 (my router has blue usb ports and it is in the docs that they are a 2.0 ports) I own a hdd enclosure with a blue light and it is only a 2.0 device.
     
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  8. Michaela Joy

    Michaela Joy MDL Crazy Lady

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  9. Joe C

    Joe C MDL Guru

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  10. Michaela Joy

    Michaela Joy MDL Crazy Lady

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