Why is usb-c usb V3.1 and not V4.0?











up vote
1
down vote

favorite












Like the title says. Why is the new USB type C version 3.1? I thought version names went major.minor.micro. USB C is not backwards compatible with USB-A without a converter so doesn't this make USB-C V4.0 since its a major upgrade?










share|improve this question




























    up vote
    1
    down vote

    favorite












    Like the title says. Why is the new USB type C version 3.1? I thought version names went major.minor.micro. USB C is not backwards compatible with USB-A without a converter so doesn't this make USB-C V4.0 since its a major upgrade?










    share|improve this question


























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      Like the title says. Why is the new USB type C version 3.1? I thought version names went major.minor.micro. USB C is not backwards compatible with USB-A without a converter so doesn't this make USB-C V4.0 since its a major upgrade?










      share|improve this question















      Like the title says. Why is the new USB type C version 3.1? I thought version names went major.minor.micro. USB C is not backwards compatible with USB-A without a converter so doesn't this make USB-C V4.0 since its a major upgrade?







      usb version






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 4 at 20:46









      fixer1234

      17.7k144581




      17.7k144581










      asked Feb 22 '15 at 11:12









      iProgram

      2752417




      2752417






















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          2
          down vote



          accepted










          Why is USB-C V3.1 and not V4.0?



          The new USB type C specification is version 1.0 not 3.1.




          The USB 3.1 standard is backward compatible with USB 3.0 and USB 2.0.



          The USB Type-C Specification 1.0 defines a new small reversible-plug
          connector for USB 3.1 devices.
          The type-C plug will be used at both
          host and device side, replacing multiple type-B and type-A connectors
          and cables with a future-proof standard similar to Apple Lightning and
          Thunderbolt.




          Source USB 3.1





          Where can I find the USB Type-C Specification Release 1.0?



          See USB Type-C Specification Release 1.0 for the specification.





          USB-C is not backwards compatible with USB-A



          USB C replaces multiple type-B and type-A connectors and cables.






          share|improve this answer























          • I knew that USB-C replaced Type-A and B. This is why I thought that it should be USB V4.0 however USB-C is still V3.1 isn't it? Sorry if I am not understanding you, its just that I need it explained a bit more. Thank you for answering though.
            – iProgram
            Feb 22 '15 at 12:13






          • 1




            Because it's the very same protocol? It's just a different physical connector, much like PCIe is the same over Mini-PCIe and a regular-sized slot.
            – Daniel B
            Feb 22 '15 at 13:02






          • 1




            There is one standard (specification) for the USB protocol itself (currently at 3.1). There is another different standard (specification) for USB C connectors, currently at 1.0 (because it is new).
            – DavidPostill
            Feb 23 '15 at 22:36






          • 1




            @aPyDeveloper You sure you’re not confusing Alt Mode for USB? Because it isn’t USB. Just because there’s serial connectors with RJ45 doesn’t mean serial is the new Ethernet.
            – Daniel B
            Feb 24 '15 at 18:24






          • 1




            @aPyDeveloper that is DisplayPort technology. Just because a cable is labeled USB doesn't mean it can't be used for something else. It's still a USB 3.1 compatible cable, constructed to a USB C 1.0 standard. DisplayPort technology has nothing to do with USB, it just works over the same cable.
            – DavidPostill
            Feb 25 '15 at 19:01











          Your Answer








          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "3"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f881039%2fwhy-is-usb-c-usb-v3-1-and-not-v4-0%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          2
          down vote



          accepted










          Why is USB-C V3.1 and not V4.0?



          The new USB type C specification is version 1.0 not 3.1.




          The USB 3.1 standard is backward compatible with USB 3.0 and USB 2.0.



          The USB Type-C Specification 1.0 defines a new small reversible-plug
          connector for USB 3.1 devices.
          The type-C plug will be used at both
          host and device side, replacing multiple type-B and type-A connectors
          and cables with a future-proof standard similar to Apple Lightning and
          Thunderbolt.




          Source USB 3.1





          Where can I find the USB Type-C Specification Release 1.0?



          See USB Type-C Specification Release 1.0 for the specification.





          USB-C is not backwards compatible with USB-A



          USB C replaces multiple type-B and type-A connectors and cables.






          share|improve this answer























          • I knew that USB-C replaced Type-A and B. This is why I thought that it should be USB V4.0 however USB-C is still V3.1 isn't it? Sorry if I am not understanding you, its just that I need it explained a bit more. Thank you for answering though.
            – iProgram
            Feb 22 '15 at 12:13






          • 1




            Because it's the very same protocol? It's just a different physical connector, much like PCIe is the same over Mini-PCIe and a regular-sized slot.
            – Daniel B
            Feb 22 '15 at 13:02






          • 1




            There is one standard (specification) for the USB protocol itself (currently at 3.1). There is another different standard (specification) for USB C connectors, currently at 1.0 (because it is new).
            – DavidPostill
            Feb 23 '15 at 22:36






          • 1




            @aPyDeveloper You sure you’re not confusing Alt Mode for USB? Because it isn’t USB. Just because there’s serial connectors with RJ45 doesn’t mean serial is the new Ethernet.
            – Daniel B
            Feb 24 '15 at 18:24






          • 1




            @aPyDeveloper that is DisplayPort technology. Just because a cable is labeled USB doesn't mean it can't be used for something else. It's still a USB 3.1 compatible cable, constructed to a USB C 1.0 standard. DisplayPort technology has nothing to do with USB, it just works over the same cable.
            – DavidPostill
            Feb 25 '15 at 19:01















          up vote
          2
          down vote



          accepted










          Why is USB-C V3.1 and not V4.0?



          The new USB type C specification is version 1.0 not 3.1.




          The USB 3.1 standard is backward compatible with USB 3.0 and USB 2.0.



          The USB Type-C Specification 1.0 defines a new small reversible-plug
          connector for USB 3.1 devices.
          The type-C plug will be used at both
          host and device side, replacing multiple type-B and type-A connectors
          and cables with a future-proof standard similar to Apple Lightning and
          Thunderbolt.




          Source USB 3.1





          Where can I find the USB Type-C Specification Release 1.0?



          See USB Type-C Specification Release 1.0 for the specification.





          USB-C is not backwards compatible with USB-A



          USB C replaces multiple type-B and type-A connectors and cables.






          share|improve this answer























          • I knew that USB-C replaced Type-A and B. This is why I thought that it should be USB V4.0 however USB-C is still V3.1 isn't it? Sorry if I am not understanding you, its just that I need it explained a bit more. Thank you for answering though.
            – iProgram
            Feb 22 '15 at 12:13






          • 1




            Because it's the very same protocol? It's just a different physical connector, much like PCIe is the same over Mini-PCIe and a regular-sized slot.
            – Daniel B
            Feb 22 '15 at 13:02






          • 1




            There is one standard (specification) for the USB protocol itself (currently at 3.1). There is another different standard (specification) for USB C connectors, currently at 1.0 (because it is new).
            – DavidPostill
            Feb 23 '15 at 22:36






          • 1




            @aPyDeveloper You sure you’re not confusing Alt Mode for USB? Because it isn’t USB. Just because there’s serial connectors with RJ45 doesn’t mean serial is the new Ethernet.
            – Daniel B
            Feb 24 '15 at 18:24






          • 1




            @aPyDeveloper that is DisplayPort technology. Just because a cable is labeled USB doesn't mean it can't be used for something else. It's still a USB 3.1 compatible cable, constructed to a USB C 1.0 standard. DisplayPort technology has nothing to do with USB, it just works over the same cable.
            – DavidPostill
            Feb 25 '15 at 19:01













          up vote
          2
          down vote



          accepted







          up vote
          2
          down vote



          accepted






          Why is USB-C V3.1 and not V4.0?



          The new USB type C specification is version 1.0 not 3.1.




          The USB 3.1 standard is backward compatible with USB 3.0 and USB 2.0.



          The USB Type-C Specification 1.0 defines a new small reversible-plug
          connector for USB 3.1 devices.
          The type-C plug will be used at both
          host and device side, replacing multiple type-B and type-A connectors
          and cables with a future-proof standard similar to Apple Lightning and
          Thunderbolt.




          Source USB 3.1





          Where can I find the USB Type-C Specification Release 1.0?



          See USB Type-C Specification Release 1.0 for the specification.





          USB-C is not backwards compatible with USB-A



          USB C replaces multiple type-B and type-A connectors and cables.






          share|improve this answer














          Why is USB-C V3.1 and not V4.0?



          The new USB type C specification is version 1.0 not 3.1.




          The USB 3.1 standard is backward compatible with USB 3.0 and USB 2.0.



          The USB Type-C Specification 1.0 defines a new small reversible-plug
          connector for USB 3.1 devices.
          The type-C plug will be used at both
          host and device side, replacing multiple type-B and type-A connectors
          and cables with a future-proof standard similar to Apple Lightning and
          Thunderbolt.




          Source USB 3.1





          Where can I find the USB Type-C Specification Release 1.0?



          See USB Type-C Specification Release 1.0 for the specification.





          USB-C is not backwards compatible with USB-A



          USB C replaces multiple type-B and type-A connectors and cables.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Jul 25 '15 at 21:51

























          answered Feb 22 '15 at 11:43









          DavidPostill

          103k25222256




          103k25222256












          • I knew that USB-C replaced Type-A and B. This is why I thought that it should be USB V4.0 however USB-C is still V3.1 isn't it? Sorry if I am not understanding you, its just that I need it explained a bit more. Thank you for answering though.
            – iProgram
            Feb 22 '15 at 12:13






          • 1




            Because it's the very same protocol? It's just a different physical connector, much like PCIe is the same over Mini-PCIe and a regular-sized slot.
            – Daniel B
            Feb 22 '15 at 13:02






          • 1




            There is one standard (specification) for the USB protocol itself (currently at 3.1). There is another different standard (specification) for USB C connectors, currently at 1.0 (because it is new).
            – DavidPostill
            Feb 23 '15 at 22:36






          • 1




            @aPyDeveloper You sure you’re not confusing Alt Mode for USB? Because it isn’t USB. Just because there’s serial connectors with RJ45 doesn’t mean serial is the new Ethernet.
            – Daniel B
            Feb 24 '15 at 18:24






          • 1




            @aPyDeveloper that is DisplayPort technology. Just because a cable is labeled USB doesn't mean it can't be used for something else. It's still a USB 3.1 compatible cable, constructed to a USB C 1.0 standard. DisplayPort technology has nothing to do with USB, it just works over the same cable.
            – DavidPostill
            Feb 25 '15 at 19:01


















          • I knew that USB-C replaced Type-A and B. This is why I thought that it should be USB V4.0 however USB-C is still V3.1 isn't it? Sorry if I am not understanding you, its just that I need it explained a bit more. Thank you for answering though.
            – iProgram
            Feb 22 '15 at 12:13






          • 1




            Because it's the very same protocol? It's just a different physical connector, much like PCIe is the same over Mini-PCIe and a regular-sized slot.
            – Daniel B
            Feb 22 '15 at 13:02






          • 1




            There is one standard (specification) for the USB protocol itself (currently at 3.1). There is another different standard (specification) for USB C connectors, currently at 1.0 (because it is new).
            – DavidPostill
            Feb 23 '15 at 22:36






          • 1




            @aPyDeveloper You sure you’re not confusing Alt Mode for USB? Because it isn’t USB. Just because there’s serial connectors with RJ45 doesn’t mean serial is the new Ethernet.
            – Daniel B
            Feb 24 '15 at 18:24






          • 1




            @aPyDeveloper that is DisplayPort technology. Just because a cable is labeled USB doesn't mean it can't be used for something else. It's still a USB 3.1 compatible cable, constructed to a USB C 1.0 standard. DisplayPort technology has nothing to do with USB, it just works over the same cable.
            – DavidPostill
            Feb 25 '15 at 19:01
















          I knew that USB-C replaced Type-A and B. This is why I thought that it should be USB V4.0 however USB-C is still V3.1 isn't it? Sorry if I am not understanding you, its just that I need it explained a bit more. Thank you for answering though.
          – iProgram
          Feb 22 '15 at 12:13




          I knew that USB-C replaced Type-A and B. This is why I thought that it should be USB V4.0 however USB-C is still V3.1 isn't it? Sorry if I am not understanding you, its just that I need it explained a bit more. Thank you for answering though.
          – iProgram
          Feb 22 '15 at 12:13




          1




          1




          Because it's the very same protocol? It's just a different physical connector, much like PCIe is the same over Mini-PCIe and a regular-sized slot.
          – Daniel B
          Feb 22 '15 at 13:02




          Because it's the very same protocol? It's just a different physical connector, much like PCIe is the same over Mini-PCIe and a regular-sized slot.
          – Daniel B
          Feb 22 '15 at 13:02




          1




          1




          There is one standard (specification) for the USB protocol itself (currently at 3.1). There is another different standard (specification) for USB C connectors, currently at 1.0 (because it is new).
          – DavidPostill
          Feb 23 '15 at 22:36




          There is one standard (specification) for the USB protocol itself (currently at 3.1). There is another different standard (specification) for USB C connectors, currently at 1.0 (because it is new).
          – DavidPostill
          Feb 23 '15 at 22:36




          1




          1




          @aPyDeveloper You sure you’re not confusing Alt Mode for USB? Because it isn’t USB. Just because there’s serial connectors with RJ45 doesn’t mean serial is the new Ethernet.
          – Daniel B
          Feb 24 '15 at 18:24




          @aPyDeveloper You sure you’re not confusing Alt Mode for USB? Because it isn’t USB. Just because there’s serial connectors with RJ45 doesn’t mean serial is the new Ethernet.
          – Daniel B
          Feb 24 '15 at 18:24




          1




          1




          @aPyDeveloper that is DisplayPort technology. Just because a cable is labeled USB doesn't mean it can't be used for something else. It's still a USB 3.1 compatible cable, constructed to a USB C 1.0 standard. DisplayPort technology has nothing to do with USB, it just works over the same cable.
          – DavidPostill
          Feb 25 '15 at 19:01




          @aPyDeveloper that is DisplayPort technology. Just because a cable is labeled USB doesn't mean it can't be used for something else. It's still a USB 3.1 compatible cable, constructed to a USB C 1.0 standard. DisplayPort technology has nothing to do with USB, it just works over the same cable.
          – DavidPostill
          Feb 25 '15 at 19:01


















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Super User!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f881039%2fwhy-is-usb-c-usb-v3-1-and-not-v4-0%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          "Incorrect syntax near the keyword 'ON'. (on update cascade, on delete cascade,)

          Alcedinidae

          Origin of the phrase “under your belt”?