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











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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?










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    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?










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      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?










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      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






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      edited Dec 4 at 20:46









      fixer1234

      17.7k144581




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      asked Feb 22 '15 at 11:12









      iProgram

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          1 Answer
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          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











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          1 Answer
          1






          active

          oldest

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          1 Answer
          1






          active

          oldest

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          active

          oldest

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          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


















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