1.    20 Jan 2016 #1

    Copying files goes really fast then slows to a crawl.

    I just got a new 8tb external drive and this started happening.

    2.5 gb file mkv

    It'll have a burst of write speed completing 60-80% and then slow all the way to 0 and just trickle the rest, even though it fluctuates from as low as 5 up to 30-50mb until it's done.

    Has anyone else experienced this?

      My System SpecsSystem Spec

  2.    20 Jan 2016 #2

    Just tried a 10gb file and it was a bit different. It would climb from 30-80 and down to 355kb and back up to 30-70 and now both my drives just disabled during transfer and re enabled. Tried it on my desktop with i5 2500k and Dell laptop with i7 6700hq both on usb with hub.

    Could the hub be going bad?
      My System SpecsSystem Spec

  3.    20 Jan 2016 #3

    Could be the drive has a memory buffer that fills up, the actual disk inside it has slow write speeds , it clears the buffer then the buffer re-fills up again....hence the fast / slow / fast on the larger file.
      My System SpecsSystem Spec


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