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In other words, exactly like the early days of usb-micro/mini? I distinctly recall having chargers from blackberries that wouldn't support my first android phones due to being underpowered. I would imagine over time we'll see something almost identical only with two unofficial categories instead:

One set of chargers will be for mobile devices and just support the highest standard we see in them.

One will be for laptops and the same - just supports the highest profile for them.

Well, not quite.

Both chargers and devices need not support all charging standards/profiles and thus may disagree on working together. A working (all USB PD profiles up to 100W supporting) charger looks inherently the same as a profile-1 only one, and both may even say "USB PD" in the specs.

Thank god the MacBook accepts the widespread 5V/3A USB-PD power level and even USB BC.

> In other words, exactly like the early days of usb-micro/mini?

Overall worse, because USB-C may also be used for other connections (eg DisplayPort), adding to the confusion.

Plus all the different cables which can do different things and not support specific profiles of some things and others but they all have the same connectors. Confusing as heck.

This is not harder the the issue of 8P8C connectors.

Depending on cable configuration, pinout, wall plate and structured wiring system that 8P8C might be usable (or not) for multiple different types of data networking, from the assorted ethernet speeds to E1 to token ring, or for a serial console, or delivering power and audio to a remote speaker, or hdmi-over-utp, or even -48V telephony, and let's not even get started on the only-subtly-different but actually incompatible RJ45 connector, or people sticking RJ11 plugs in 8P8C ports.

And yet the world has coped with this proliferation.

Nontechnical people tend not to deal with multiple usecases for 8P8C connectors in everyday life. Despite being fairly technical, until I googled I would have called them RJ45.

The generic term is 8P8C for the multitude (and I've seen many of them in Telecom) uses, RJ-45 is one specific use - ethernet cables.

Over time, as you've noted - the vast majority of uses of 8P8C has turned out to be networking - it will be interesting to see if USB-C likewise, makes a similar evolution.

RJ45 doesn't refer to Ethernet. In fact, there doesn't seem to be such a thing as RJ45.

There's an RJ45S, but that's definitely nothing to do with Ethernet. Use of the term RJ45 is simply wrong, in any circumstance, as far as I can tell.

There's no term for the use of 8P8C for Ethernet purposes other than well, Ethernet, or its specific profiles ...BASE-T, as far as I can tell.

I almost always hear "RJ45" to identify the 8-conductor ethernet female or male connector - depending on the context. It is universally understood, and there is no confusion about it. There is nothing wrong with using it in everyday conversation.

I have never once heard the phrase "8P8C" used to refer to an ethernet jack. Not once (outside of this thread) - but I have heard it used that way when referring to various 8-pin telco connections - it was a common term of art in the 90s when describing telco installations that used that configuration. When talking about Ethernet, and people are trying to be specific, they usually reference EIA-TIA-568B/A.

There are certain words, like "Bandwidth" - that, might technically mean the width of the band (typically in Hz), but have grown over time to refer to data rate as well. And that's cool - language is versatile that way.

This interesting tangent about common parlance for connector names demonstrates another way in which USB Type-C's adoption trajectory is characteristically similar to 8P8C: people are already giving it a technically incorrect common name, "USB-C".

> In fact, there doesn't seem to be such a thing as RJ45.

In fact, language and terms are not set in stone.

Wow, that's more horrible than I thought. Thanks for the summary.

I am honestly befuddled by USB-C. The allure of a universal connector? That's kinda pointless when the cables look mostly the same but support different feature subsets. It's insanity.

It's bad enough that many manufacturers (I'm looking at you, Dell) don't differentiate between USB 2 and 3 Type A. C is so much worse for this.

Instead of a pretty good $1200 13" Air we have a $1800+ cersion that's lost features (MagSafe, worse keyboard) to be a hair thinner that also requires $200 in dongles to connect to anything.

Seriously, fuck you, Apple.

I haven't come to a conclusion w/r to those "shiny" new MacBook features yet, but I'm not an Apple user either. Time will tell though.

I hope Dell will improve its power circuitry in the future and support USB BC and PD 5V/3A. Let's hope it's just that current power chipsets lack those modes because of time to market pressure and Apple is ahead of its competitors here.

I can understand your anger at Apple, I hear the same a lot from design and audio professionals... You may have got some downvotes for that last statement.

I don't know why you are getting downvoted(I guess it's the fuck you at the end), but I absolutely agree - if a cable fits in a port, it should just work. Anything else is horrible design that's user hostile. Apple sells an LG USB-C display, and if you use the USB-C cable bundled with the MacBook Pro, it doesn't work. And you don't get an error message - it just doesn't work.

Some companies, for example Nintendo, figured this out a long time ago. Notice how with their consoles, if the disc/cartridge fits in the console, the console will always play it, even between generations. The customer shouldn't have to research arcane names and study symbols on cables - if it fits, it should just work. And USB-C is just a mess at the moment.

The reason why is probably because he assumes a negative thing that hasn't happened and then rants against something that isn't a problem while being a bit of a dick...

I plugged my new macbook pro into an OWC usb-c hub with the apple cable and nothing happened. Tried the (annoyingly short) cable that came with the hub and it works.

No clue why.

> Notice how with their consoles, if the disc/cartridge fits in the console, the console will always play it, even between generations.

Well, that's not quite true. Both the Wii and Wii U have a standard-sized disc slot; on the Wii you can insert small GameCube discs into that slot and they'll play, but on the Wii U they won't. On the portable side, 3DS cartridges do have a tab to prevent them from fitting into a DS, but that wasn't the case for the handful of games exclusive to the brief-lived DSi.

Recent Nintendo consoles have also had compatibility issues with standard storage devices. The Wii supported SD cards, but wasn't compatible with SDHC cards, which are almost all cards with a capacity of 4GB or higher. This was eventually rectified with a software update... but the update only applied to the system menu, not to games which could access SD cards themselves, including notably Super Smash Bros. Brawl. The Wii U, for its part, supports storing games on external hard drives, but doesn't provide as much power over USB as most hosts do, requiring the use of a USB Y cable and a separate USB power source even for drives that don't normally require external power.

Exaggeration and insults don't improve your argument.

Having had the Macbook 12" for a year and a half now and a Nexus 6p for a year, it's really been quite wonderful. I can charge my laptop or phone using the same charger – of course not as fast as the OEM charger, but wonderful for being on the move. I love that I can use a typical battery backup to charge my Macbook. I really wish everything of mine USB-C, and it will be soon.

Right now it feels wonderful with OEM chargers, but you do have me worried about the future buying replacements and accessories.

There will be the cheap Chinese chargers that will suck. Then customers will complain, and Belkin and others will notice and make good chargers with proper marks on the packaging. It won't take too long before customers and shops know what to buy or sell.

I have that car adapter as well as a USB power bank. Both don't charge the Dell XPS 13, because it wants 20V/3A. The docs of both chargers and the Dell are light on the USB-PD details. The chargers are great for phones so i didn't return them.

However there's not a single car charger nor a power bank that does usb-pd at 20V/3A at the moment. So sad.

All chargers are Chinese, not only the ones which suck. Let's leave cheap shots at other countries out of here, thanks.

> Charger may offer cryptographic signatures in the future for authentication against a whitelist at the device.

Who would ever expect Apple to do something like that? Oh wait...

That argument looks like FUD to me. That would be a surefire way to get shunned by the USB-IF and be forbidden from using official USB identification on your products.

Apple is already doing something similar though on the new MacBook Pro, there is a software block on Thunderbolt 3 devices that haven't also been "macOS certified" by Apple:

https://9to5mac.com/2016/11/21/tb3-enabler-enable-unsupporte...