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Thread: SilverStone ECU05 USB 3.1 Type-C expansion card launched

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    SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Provides 2x USB 3.0 Type-A ports (+ 2x int), plus a single 10Gbps USB 3.1 Type-C port.
    Read more.

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    There is no way on God's green earth that the picture of the low profile bracket is the one that comes in the box: it'd make both full-size ports completely unusable!

    Also, PCIe 2.0 x2? Slightly unusual choice, although I suppose a lot boards have an electrical x4 slot nowadays so perhaps that's the thought behind it...

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    seems an easy way to get USB3 on my old X58 board
    Old puter - still good enuff till I save some pennies!

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Quote Originally Posted by 3dcandy View Post
    seems an easy way to get USB3 on my old X58 board
    My thoughts exactly!

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    PCI-E 2.0 x2, 500MB/s per lane, 1GB/s per lane == 8Gb/s which is significantly less than the 10Gb/s advertised. How do they get away with this misleading advertising?

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    For those not wanting to deal with the extra SATA power cable; I picked up one of these:

    http://www.gigabyte.com/products/pro...px?pid=5430#ov

    PCI-E x4 connector, and 3.1 on both the type A and C connectors. No internal headers, which might be a deal breaker for some... but for those with case windows, this card works nicely

    Su

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Quote Originally Posted by jonny_boy27 View Post
    PCI-E 2.0 x2, 500MB/s per lane, 1GB/s per lane == 8Gb/s which is significantly less than the 10Gb/s advertised. How do they get away with this misleading advertising?
    The USB spec is a complete mess, you can have the new type c ports on USB2 controllers for instance, it's all optional, there is no USB 3.1 gold standard other than those that are thunderbolt v3 certified which by virtue meet the bandwidth requirements.

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Quote Originally Posted by Sumanji View Post
    For those not wanting to deal with the extra SATA power cable; I picked up one of these:

    http://www.gigabyte.com/products/pro...px?pid=5430#ov

    PCI-E x4 connector, and 3.1 on both the type A and C connectors. No internal headers, which might be a deal breaker for some... but for those with case windows, this card works nicely

    Su
    That Gigabyte card appears to use the same ASMedia PCIe USB 3.1 chipset as the Silverstone card here, which according to the datasheet runs at either x2 @ 2.0 or x1 @ 3.0, i.e. both have a PCIe link speed of ~8Gb/s, despite both having a physical x4 connector.

    The main difference is that this Silverstone card also has a VLI 4-port USB 3.0 hub chip to provide four USB 3.0 ports, off one of the two 3.1 USB ports off the ASMedia chip.

    EDIT: It seems like all the USB 3.1 PCIe cards currently available from any brand has the same ASMedia ASM1142 chip,

    So really, all current USB 3.1 PCIe cards are bottlenecked at ~8Gb/s and Silverstone has been the most 'honest', as it seems they were the only manufacturer to admit the thing runs at PCIe 2.0 x2.
    Last edited by DDY; 03-04-2016 at 12:39 AM.

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    About time this thing appeared, now I can extend the longevity of my old Z77 motherboard

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Quote Originally Posted by jonny_boy27 View Post
    PCI-E 2.0 x2, 500MB/s per lane, 1GB/s per lane == 8Gb/s which is significantly less than the 10Gb/s advertised. How do they get away with this misleading advertising?
    There's a difference between upstream bandwidth and downstream bandwidth.

    You are correct: the PCIe 2.0 clock oscillates at 5 GHz and
    it uses an 8b/10b "legacy frame" which requires 10 bits per byte:
    1 start bit + 8 data bits + 1 stop bit

    Hence, 5G / 10 bits per byte = 500 Megabytes per second per PCIe 2.0 lane.

    Upstream bandwidth across an x2 PCIe 2.0 edge connector = 2 @ 500 MB/s = 1,000 MB/second

    Downstream bandwidth over the USB 3.1 port oscillates at 10 GHz and
    it uses a 128b/132b "jumbo frame" (132 bits for 16 bytes per frame = 8.25 bits per byte)

    Downstream bandwidth of a USB 3.1 cable = 10G / 8.25 bits per byte = 1,212 MB/second

    Your error is here: "1GB/s per lane == 8Gb/s" should be "== 10Gb/s"

    x2 PCIe 2.0 lanes @ 5 GHz = 10 GHz (i.e. 10 Gigabits per second).

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Quote Originally Posted by MRFS View Post
    Quote Originally Posted by jonny_boy27 View Post
    PCI-E 2.0 x2, 500MB/s per lane, 1GB/s per lane == 8Gb/s which is significantly less than the 10Gb/s advertised. How do they get away with this misleading advertising?
    There's a difference between upstream bandwidth and downstream bandwidth.
    And how much of that bandwidth is used by data generated by the USB controller on the card, rather than data transfered between the card and computer?

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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Never have I seen a USB expansion card generate such fervent discussion...


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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Quote Originally Posted by EndlessWaves View Post
    And how much of that bandwidth is used by data generated by the USB controller on the card, rather than data transfered between the card and computer?
    Probably about the same as USB devices/hosts generate when negotiating/transferring data via USB.
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    Re: SilverStone ECU05 USB 3.1 Type-C expansion card launched

    Quote - "SilverStone hasn't indicated availability or pricing."

    So pretty much vapourware to my eyes till those important facts are known.

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