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> - will it charge my MacBook Pro 16” and deliver the full 100W? If it's e-marked, then yes. > - will it supply data and if so, at what speed? > - can it deli

> - will it charge my MacBook Pro 16” and deliver the full 100W? If it's e-marked, then yes. > - will it supply data and if so, at what speed? > - can it deliver power and video over USB C and work with my portable secondary display? If it's not just a USB 2.0 cable, then yes.

scarface74 4y ago
These aren’t rhetorical questions. I didn’t start looking into USB until two years ago when I got a work MacBook. Before then, it had been almost a decade and a half since I had a Mac. - the USB C cable that came with the x86 Macs and most USB C charging cables are power only and don’t support data - many USB C cables that do support data only support data at USB2 speeds and don’t support video over USB - I think some cables can support video over USB C. But only support data at lower speeds than 10Gbps.
- megous 4y ago
  Yeah, no. There are no non-data Type-C cable assemblies. If you have a C-C cable without at least USB 2.0 data signals wired through, it's not standards compliant: https://megous.com/dl/tmp/6e4e502cb9f6e709.png https://megous.com/dl/tmp/6e4e502cb9f6e709.png
  - scarface74 4y ago
    The USB C cable that comes with the MacBook Pro only supports charging https://www.macintoshhowto.com/hardware/why-your-usb-c-cable-may-not-work-to-connect-your-macbooks-together.html https://www.macintoshhowto.com/hardware/why-your-usb-c-cable...
    - seba_dos1 4y ago
      It only pretends to be a USB-C cable then.
      - seba_dos1 4y ago
        Actually, scratch that (can't edit anymore) - looking closer at what you linked to, this appears to be a perfectly fine, data-capable USB 2.0 cable. It's just not a fully featured cable capable of Thunderbolt, and connecting two Macbooks is a feature that relies on Thunderbolt and doesn't work over USB. So, it's just like I said in my initial reply. Really, unless you need to get the highest bandwidth available from latest USB standards, it's not that complicated at all. In most non-Thunderbolt cases, all you need to know is whether your cable is USB 2.0 only or not - and Thunderbolt cables tend to be obviously marked as such.

scarface74 4y ago

These aren’t rhetorical questions. I didn’t start looking into USB until two years ago when I got a work MacBook. Before then, it had been almost a decade and a half since I had a Mac. - the USB C cable that came with the x86 Macs and most USB C charging cables are power only and don’t support data - many USB C cables that do support data only support data at USB2 speeds and don’t support video over USB - I think some cables can support video over USB C. But only support data at lower speeds than 10Gbps.

megous 4y ago
Yeah, no. There are no non-data Type-C cable assemblies. If you have a C-C cable without at least USB 2.0 data signals wired through, it's not standards compliant: https://megous.com/dl/tmp/6e4e502cb9f6e709.png https://megous.com/dl/tmp/6e4e502cb9f6e709.png
- scarface74 4y ago
  The USB C cable that comes with the MacBook Pro only supports charging https://www.macintoshhowto.com/hardware/why-your-usb-c-cable-may-not-work-to-connect-your-macbooks-together.html https://www.macintoshhowto.com/hardware/why-your-usb-c-cable...
  - seba_dos1 4y ago
    It only pretends to be a USB-C cable then.
    - seba_dos1 4y ago
      Actually, scratch that (can't edit anymore) - looking closer at what you linked to, this appears to be a perfectly fine, data-capable USB 2.0 cable. It's just not a fully featured cable capable of Thunderbolt, and connecting two Macbooks is a feature that relies on Thunderbolt and doesn't work over USB. So, it's just like I said in my initial reply. Really, unless you need to get the highest bandwidth available from latest USB standards, it's not that complicated at all. In most non-Thunderbolt cases, all you need to know is whether your cable is USB 2.0 only or not - and Thunderbolt cables tend to be obviously marked as such.