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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 16 Sep 2020
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      FWIW here is the real USB3.0 unit that I paid *less* for than the fake one:https://www.aliexpress.com/item/4001044872081.html …

      7 replies 2 retweets 28 likes
      Show this thread
    2. Arsenio Dev‏ @Ascii211 16 Sep 2020
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      Replying to @marcan42

      Welp, gonna take a shot at this one.

      1 reply 0 retweets 0 likes
    3. Joe Fitz‏ @securelyfitz 16 Sep 2020
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      Replying to @Ascii211 @marcan42

      I've got a pair that look just like that which have USB3 internals but only connect as 2.0. you're welcome to them if you want to year them down, or burn them in sacrifice.

      2 replies 0 retweets 1 like
    4. Hector Martin‏ @marcan42 21 Sep 2020
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      Replying to @securelyfitz @Ascii211

      Did you flip the USB-C connector? It's a cheap noncompliant implementation without a mux, so the USB3.0 pins only connect in one direction. Mine is like that.

      1 reply 0 retweets 0 likes
    5. Joe Fitz‏ @securelyfitz 21 Sep 2020
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      Replying to @marcan42 @Ascii211

      No, they were usb 3 type A connectors not C. I really dont understand why people think it's ok to put type A on devices.

      1 reply 0 retweets 0 likes
    6. Arsenio Dev‏ @Ascii211 21 Sep 2020
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      Replying to @securelyfitz @marcan42

      Wtaf

      1 reply 0 retweets 0 likes
    7. Glen Akins‏ @bikerglen 21 Sep 2020
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      Replying to @Ascii211 @securelyfitz @marcan42

      Yep. What fresh hell is this? On my Magewell USB HDMI capture doodad.pic.twitter.com/oOPcLlxL9y

      1 reply 0 retweets 1 like
    8. Arsenio Dev‏ @Ascii211 21 Sep 2020
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      Replying to @bikerglen @securelyfitz @marcan42

      You really wanna know why this happens? Because the connector is DUMMY CHEAP. It's the cheapest connector next to the USB 2 A, due to economies of scale going craaaazy

      1 reply 0 retweets 4 likes
    9. Hector Martin‏ @marcan42 23 Sep 2020
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      Replying to @Ascii211 @bikerglen @securelyfitz

      The real ones I linked have type C connectors. I have a blue one with a type A connector that is fake (USB2.0 innards, only the connector is USB3 but the pins are not connected, the USB descriptors are faked to say USB3.0).

      1 reply 0 retweets 1 like
    10. Joe Fitz‏ @securelyfitz 23 Sep 2020
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      Replying to @marcan42 @Ascii211 @bikerglen

      Joe Fitz Retweeted Joe Fitz

      your 'real' one above looks like and costs the same as the fake 'usb3 connector but no traces' i got on ebay:https://twitter.com/securelyfitz/status/1270811178881568773 …

      Joe Fitz added,

      Joe Fitz @securelyfitz
      Meanwhile, I recently got this "USB3.0" capture device. Look! It says 3.0 on the case! Has a blue 3.0 header! Shows up as "USB3.0 HD Capture"! Plug it in, but only 480mbps... Take it apart, and the USB3 traces aren't even connected to anything. Oh, and it crashes regularly. https://twitter.com/Ascii211/status/1268631069051453448 … pic.twitter.com/jSjWILpLgf
      2 replies 0 retweets 2 likes
      Hector Martin‏ @marcan42 23 Sep 2020
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      Replying to @securelyfitz @Ascii211 @bikerglen

      The case is similar, but it does not look the same. As I said, mine has a Type C connector, and a different connector layout. If you're trying to visually classify Chinese stuff, you *have* to include precise connector layout; case alone means nothing. TC1860 = retopped FIC7618

      11:24 PM - 23 Sep 2020
      1 reply 0 retweets 0 likes
        1. New conversation
        1. Hector Martin‏ @marcan42 23 Sep 2020
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          Replying to @marcan42 @securelyfitz and

          Given the chip blacktopping, the descriptors claiming USB 3.0, and the SS connector, this seems to be a deliberate counterfeiting operation, not just "relabeling". It seems some company is taking existing case styles and building clones with USB2.0 insides.

          1 reply 0 retweets 1 like
        2. Hector Martin‏ @marcan42 23 Sep 2020
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          Replying to @marcan42 @securelyfitz and

          The FIC7618 is particularly bad because it gives up once frame complexity exceeds a threshold and refuses to stream until it goes down again.

          0 replies 0 retweets 1 like
          3. End of conversation

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