I've upgraded from Windows Server 2008 R2 to Windows Server 2012 R2 on a physical server built on a 2011' Asus motherboard. Windows 2008 was known to not support USB3, and that was an issue since years because we frequently need to transfer large VHD's from the host to an external 2.5" HDD to take VMs with us for demo purposes. I was hoping with Windows 2012 R2 that we could get fast transfer rates, but still the transfer speed printed on the Windows Explorer dialog is 22,8 Mb/s. The same external HDD connected to a Dell laptop speeds up to 78 Mb/s. (I compared copying 2Gb file TO the external HDD). What am I missing?

  • Are the USB ports on the server USB 3? – joeqwerty Sep 7 '15 at 15:04
  • Yes they are, according to the Motherboard's manual and the blue color of the USB ports ... – Sierramike Sep 8 '15 at 10:26
  • Chipset driver are all installed ? – yagmoth555 Sep 11 '15 at 1:26
  • I did use the drivers I found on Asus website for Windows 8 64 bits, as they don't provide drivers for Windows Server (this is an R&D server using regular destkop hardware). – Sierramike Sep 15 '15 at 12:41

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