When will USB 3.1 become "common" on motherboards?

Discussion in 'Motherboards' started by tankman1989, Oct 20, 2015.

  1. tankman1989

    tankman1989 Gawd

    Aug 21, 2009
    I'm building a small mini-ITX pc and I'd love it to have usb 3.1 but can't find any MOBO's that have it and fit my needs. Does anyone know why it isn' t used more often and when it might become more prevelant?
  2. GiGaBiTe

    GiGaBiTe Gawd

    Apr 26, 2013
    The spec for USB 3.1 was put out right at the same time the new Intel 8 series chipsets and Haswell came out which pretty much sealed its fate for not being on the mass market. Intel didn't include it in the 9 series chipsets either, probably because it was just a refresh for Broadwell.

    It also has the competing Thunderbolt standard to contend with which is just over 4x faster.

    The only motherboards you'll find with it are ones that add a discrete USB 3.1 controller chip to the motherboard for support. You'd be better off just getting a PCIe addon card if you need 3.1 support.
  3. FnordMan

    FnordMan [H]ard|Gawd

    Apr 22, 2011
    Lesee here:
    #1: Explicitly mentions Usb 3.1 Gen 1 so that's just the Type-C connector at usb 3.0 speeds.
    #2: Same thing but isn't mentioned on the newegg page, it is mentioned on Asrock's site though.
    #3: Looks like the only one that actually has a 3.1 controller on it.
  4. zaniix

    zaniix Gawd

    Nov 4, 2011
    Forgot about that Gen 1 thing, deceptive marketing IMHO.

    Looks like that Gigabyte board is decent though and they should have thee actual Intel USB controller too.
  5. jcvjcvjcvjcv

    jcvjcvjcvjcv Gawd

    Sep 28, 2007
    Who needs it at present?

    Hardware.info used two mSata Samsung 850 EVO's to proof a point about sequential read and write of two of those drives RAID 0'd in a USB 3.1 enclosure (it was faster than over USB 3.0)

    Too bad 4K QD32 is only about 8% compared to just connecting to SATA. If you want fast external storage, use eSata.
    This is what a single drive gets, on SATA, w/o USB;

    As for your question; as soon as Intel implements it in their chipsets, so not for another year at least.
  6. defaultluser

    defaultluser [H]ardForum Junkie

    Jan 14, 2006
    Exactly. Because USB 3.1 is still processor-oriented just like USB 3.0, it still has relatively high latency. You can improve sequential throughput with UASP, but this does almost nothing for random throughput.

    You're better-off sticking with SATA, or paying the premium for Thunderbolt if every little microsecond counts. At least Intel looks to be saving Thunderbolt via USB C. You can even use standard cheap USB 3 cables to carry Thunderbolt (at half rate), but it will still have it's extremely low latency.

    So yeah, the whole mess will come together in one cheap package in another 5 to 10 years or so. But it's anyone's guess if people will actually care enough about the improved random access to add Thunderbolt support to their external USB C SSDs.

    EDIT: On the flip side, for the use case as a NAS, USB 3.1 will still be limited by Gigabit Ethernet for another 10 years. So don't let the low random throughput stop you from using an external USB 3.0 SSD for storage and streaming video.
    Last edited: Oct 21, 2015