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Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

arstechnica.co.uk

61–70 of 198 posts

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#61
post #55

I'm kinda disapointed about the whole Type-C scenario. Now when you've got a Type-C Port, you just don't know what it can do. It could be anything from a USB 2 Port, up to a USB 3.1 + 20A Power + Thunderbolt Port. You can't see this from looking at it, and Spec Sheets today have a problem of listing the version numbers of HDMI and DisplayPort Ports, I don't see them suddenly becoming very concise about this. The prom…

I disagree, provided that the standard provides for some degree of backwards compatibility. I think it's great how a USB 3.0 drive will still work on a USB 1.0 computer from 1999. Sure, it'll run slower, but it'll work , and even without an adapter! With Apple's previous various high-speed ports (Firewire 400, Firewire 800, Thunderbolt), they have no backwards compatibility -- from FW 400 -> 800 you could use an adap…

[deleted]

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#63
post #37
post #17

When Thunderbolt was first released it caused a lot of confusion in my office for people with DisplayPort who couldn't hook up to Thunderbolt monitors, bought for them by our IT group that really didn't understand the difference. I see this problem coming on strong AGAIN with this. This port is just USB-C while this other port is USB-C and Thunderbolt... That sounds like a load of confusion waiting to happen.

I think the Apple TB Display is comparable here. If you have a rare TB device, you're probably a professional, and yes, you'll need to ensure the TB logo is on the port. If it's an extremely common USB device, it'll work on any port, without exception. The Apple Thunderbolt monitors are Apple's fault. There was no reason they couldn't have accepted a raw DisplayPort signal, but they still didn't.

Confused. I have an Apple TB display and plug it into a ThinkPad mini DisplayPort port. Works fine.

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#64

And finally, the future has arrived. If the iPhone 7 (doubt the 6S) sports USB-C as well, there will be a truly universal connector. Imagine screens, laptops, TVs, phones, mp3 players, docks, hard drives and toasters all using the same plug (well, maybe not the last one). There will be a painful time of transition until we are there, but hopefully it will be the last one. (Conveniently this also saves Apple on the ne…

Any theories on when TVs will use USB-C over HDMI?

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#65

I'm kinda disapointed about the whole Type-C scenario. Now when you've got a Type-C Port, you just don't know what it can do. It could be anything from a USB 2 Port, up to a USB 3.1 + 20A Power + Thunderbolt Port. You can't see this from looking at it, and Spec Sheets today have a problem of listing the version numbers of HDMI and DisplayPort Ports, I don't see them suddenly becoming very concise about this. The prom…

Even today - a USB 2 port might not have enough juice to power your hard drive, so we're already in a state of "non standardization."

I look very, very forward to the day when a USB C port means that I have a very strong chance of getting 15 watts for my tablet/phone from any vendor - and the sooner apple adopts USB C for their iphones, the better.

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#66

I'm kinda disapointed about the whole Type-C scenario. Now when you've got a Type-C Port, you just don't know what it can do. It could be anything from a USB 2 Port, up to a USB 3.1 + 20A Power + Thunderbolt Port. You can't see this from looking at it, and Spec Sheets today have a problem of listing the version numbers of HDMI and DisplayPort Ports, I don't see them suddenly becoming very concise about this. The prom…

The logic is actually simple:

If you're trying to plug in a USB device, just plug it in. It'll work, regardless of whether it's TB 3 or just plain USB 3. (update: this is probably for 99% of cases since USB is much more common than TB)

If you're trying to plug in a thunderbolt 3 device, it's very likely you know if you have thunderbolt.

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#67
post #55

Earlier quoted context omitted.

I disagree, provided that the standard provides for some degree of backwards compatibility. I think it's great how a USB 3.0 drive will still work on a USB 1.0 computer from 1999. Sure, it'll run slower, but it'll work , and even without an adapter! With Apple's previous various high-speed ports (Firewire 400, Firewire 800, Thunderbolt), they have no backwards compatibility -- from FW 400 -> 800 you could use an adap…

The point is, there will be Plug-Compatible Devices that are not Backwards compatible, as evidenced by the Thunderbolt Port switching to it. Of course other Devices will follow that come without external power supplies and other features that don't allow for graceful degradation. Thats my point. If it all were backwards compatible as it has been until now, things would be great, but that door has been shut now.

Ah, I see your point. At the same time, though, there do exist some USB 3.0 peripherals that require of a lot of bandwidth (like docking stations), that, while theoretically backwards compatible, wouldn't actually work with a USB 1.0 port in practice due to bandwidth constraints.

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#68

Seems to be trading all our different ports with the problem of having all levels of different cables? This port is going to be very expensive for the manufactures. If it does everything I'm going to need a bunch. Does anything stop OEMs making a row of identical ports that only 1 charges my laptop, only a couple take can use the fastest cable and I'm sure all sorts of potential shenanigans,

Why do you need a bunch? Most will be able to get by with a single port, to one-two monitors with a couple USB-A ports (and ethernet) on the monitors... or via a Thundebolt/USB-C dock.

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#69
post #66

I'm kinda disapointed about the whole Type-C scenario. Now when you've got a Type-C Port, you just don't know what it can do. It could be anything from a USB 2 Port, up to a USB 3.1 + 20A Power + Thunderbolt Port. You can't see this from looking at it, and Spec Sheets today have a problem of listing the version numbers of HDMI and DisplayPort Ports, I don't see them suddenly becoming very concise about this. The prom…

The logic is actually simple: If you're trying to plug in a USB device, just plug it in. It'll work, regardless of whether it's TB 3 or just plain USB 3. (update: this is probably for 99% of cases since USB is much more common than TB) If you're trying to plug in a thunderbolt 3 device, it's very likely you know if you have thunderbolt.

Will I? I've seen software developers (tech people!) return their MacBooks to Apple store because they wouldn't drive a Thunderbolt display (with the issue of course being that older MBs had only DisplayPort output, which is physically identical).

This will cause confusion (especially with added confusion around DisplayPort standard support over the USB connector) and it's unfortunate that a new connectivity standard is a regression.

Re: Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps

#70

Earlier quoted context omitted.

The high current required for charging makes that one of the more difficult things to spread around to all the ports, I'd imagine.

After the MacBook came out, but before the new Chromebook Pixel, I was telling people that Apple only put a single type-C port on their MacBook for this reason. I said "When PC's come out with type-C, they'll have multiple ports, but you'll only be able to use one of them as the power port. Apple would rather have a single port than have such a confusing setup." Of course, then the Chromebook Pixel came out and prove…

Is that definitely the case? It's still not unknown for laptops to have exactly one charging downstream USB port, unlabelled, so that some devices will charge from one port and not another. I wouldn't be at all surprised if the same is happening with USB-C.
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