Intel Releases USB 3.0 Controller Interface Spec
hardsky submitted thrilling news about everyone's favorite interconnect cable by saying "USB 3.0 is set to deliver data-transfer speeds of up to 5Gb/s, initially over tweaked connectors and wiring and, later, over optical links."
Does USB 3.0 assist in the more rapid delivery of porn to my PC?
If the answer is "Yes", then please continue with your announcement.
Gentoo Linux - another day, another USE flag.
If not even the editor posting a story isn't interested, I'd think that would be an indication that it might not be worth posting.
Still the same symmetrical plug design....stupid, stupid move. Would have been that hard to add a ridge on one side or something, so you don't have to stare at the end??
TODO: Something witty here...
Will we ever see a storage medium that can move data that fast?
What?
My humping USB dog will be a blur!
Task Mangler
I for one, welcome our new dongle overlords.
I just like to say dongle.
http://blindscribblings.com - Tasty pop-culture in conceptual fashion.
Yes, the USB connector is blind accessible. The "top" of the A plug's plastic part is supposed to be embossed with a USB logo, and the "bottom" isn't supposed to be embossed. So if you know which way is "up" on your PC's connector, or if you are using a hub (in which case up is more obvious), you can more easily plug them in blind.
"hardsky submitted thrilling news about everyone's favorite interconnect cable..."
Don't know about anyone else, but my favorite interconnect cable is something very, very, different.
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Spandex Justice
That's what I get for reading digg. http://digg.com/hardware/USB_3.0_Confirmed_(Wireless_USB_upto_1Gbps)
And how are you supposed to work out which way is "up" with a socket that is on a tower case or PCI bracket?
Will this really be faster or will it just be bigger chunks? Also, will this spec require more cpu overhead? My interest is not for SLR and video cams, but for live audio and instruments where speed, or latency is an issue. USB usually requires more cpu, is prone to more contention and overall offers lower quality for realtime audio processing. And why do people say its faster or higher speed? Maybe your transfers don't take as long, but I am willing to bet that small chunks won't see any benefit.
Intel has provided chipset makers with a draft specification for a USB 3.0 eXtensible Host Controller Interface (XHCI), making good a promise it made a couple of months ago.
I thought we had a standards body that would release such a spec to developers. This development in my opinion, might have other chip makers release a "renegade USB 4.0" promising new features and the like.
Question is; is it up to manufacturers to think of ideas, name them and release these to the general public? What's up with IEEE Standards group, whose global standards include Biomedical and Healthcare, Nanotechnology, Information Technology and Information Assurance among others?
It's all well and good to quote the new speed but what will be get int the real world? USB2 never meets expectations due ot the huge (compared to fire wire) host CPU requirements.
Will Intel be integrating the Larabee core into it's USB 3 host chips?
I am personally waiting for USB 3.11 for Workgroups to come out before upgrading.
I believe that firewire is peer to peer, while USB is master/slave. In theory that means that you can connect any two firewire-capable devices and have them talk to each other, which is not possible with USB (you need a hub). I've never actually tried that though, and so cannot personally confirm it.
It's official. Most of you are morons.
It will be interesting to see if USB 3.0 relies on the processor as much as the USB 2.0. This has led to firewire (400mbps) outperforming USB 2.0 (480mbps) in real world tests. In todays multicore world this may be non-issue on most machines by the time it ships. In a way I hope USB 3.0 does perform well. I would be OK with firewire going away if Firewire 3200 is outperformed by USB 3.0 without hogging to many clock cycles.
I'm certain that USB3 will be "supposed to be" backward with USB 1; 1.1; 2, but will likely only be backwards compatible with 2. Right now, a Hard disk cannot keep up with eSATA at 1.5 Gb/s, nevermind eSATA at 3Gb/s. For the past year or so, many of us have been buying $15 eSATA cards for our old computers, and new computers with eSATA built in. Considering that external HD cases with eSATA connectors cost only about $16 (something with 4 eggs, at Newegg) what is the benefit?
Possible benefits would be increased transfer speed to peripheral devices, but can we reasonably expect devices that fast by then? Personally, I would hope that 10Gb/s ethernet would come down in price by then. The only real benefit I see with the proposed USB3 is something for a processor core to do....
$.02
PS: I will give a possible something to do mention to Hard Disk (Solid-State) video recorders... but they could use eSATA as well & still be saturated..
In theory, you could take two SATA 3GB drives and put them in a dedicated box that treated them as a software-driven RAID-0. That would give you peak theoretical data transfer of 6Gb/sec, but that's likely to happen only if you hit the drives' on-board caches. Connect that to your box using USB 3.0.
Of course, I'd probably prefer 1Gb/sec Ethernet, so I could see the data from my network not just one machine.
Seriously though, widespread use of the full bandwidth will probably not show up until 6-12 months after this hits the market. But it will come. It will be a competitor to eSATA.
Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
Why do we need USB 3? The reason for my question is e-SATA. Why not pump more into development of devices that run on that interface instead of USB?
The game.
Comment removed based on user account deletion
Who's brilliant idea was it to go to production with "tweaked" connectors?
Don't laugh. I've seen power plugs glued to drives.
Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
It's not a huge limitation for USB since devices just include a USB host controller as well. This allows, for example, a USB camera to print to a USB printer. The main win for FireWire is the lower protocol overhead (meaning that it gets closer to the rated wire speed) and the lower CPU usage.
I am TheRaven on Soylent News
USB 2.0 can't even hit it's full speed and the slower fire wire 400 beats it and with firewire 1600 and 3200 that uses the same cables as fire wire 800. USB 3.0 that needs new cables to hit it full speed It will be a long time for it to get any ware and will 3.0 usb cards with there own cpu and heatsink on them?
That's great, except I have USB cables that are either embossed on both sides, or embossed on the wrong side.
If your cable's connector has bumps on the bottom, sand them off before using the cable.
Now all they need to do is make a motherboard and hard drives that can push 5 GB/s though the bridge and stream the data to a hard drive that can actually write 5 GB/s.
Wouldn't that be great.
As the island of our knowledge grows, so does the shore of our ignorance.
And how are you supposed to work out which way is "up" with a socket that is on a tower case or PCI bracket?
On the majority of USB hubs, up is obvious from the printing on the hub's case. For a tower case, up is generally away from the motherboard. PCI USB cards are less predictable, so I'd recommend using a hub with those. You should be using a hub anyway (or the front-panel sockets, if present) for any device that you routinely plug and unplug.
(subject explained)
Can you imagine how he puts on a condom?
As the island of our knowledge grows, so does the shore of our ignorance.
I would be OK with firewire going away if Firewire 3200 is outperformed by USB 3.0 without hogging to many clock cycles.
Define "too many" -- in my mind, it ultimately comes down to price. While it's overly-simplistic, a dual-core CPU costs about $50, and a triple-core costs about $100. A cheap firewire adapter is less than $20...
So, if it required a whole extra CPU, it would be a bad deal. But I doubt it requires that -- and at that price, it would have to be using more than $20% of the CPU, all the time, for firewire to make sense.
And that's assuming all other things are equal. In my experience, outside of a few niche high-bandwidth requirements (digital video), everything "USB-like" is either USB or Bluetooth. With USB 3.0, they've got high-bandwidth more than covered, so I imagine I would see far fewer Firewire-only devices.
Don't thank God, thank a doctor!
We already have a wireless standard for this purpose. It's called Bluetooth.
USB means you can plug things directly in, and have them either charge, or be entirely powered by the socket. It also means you can physically see where it's plugged into your computer, and short of a freaky tempest attack, it's safe to enter your password on a wired USB keyboard.
Wireless means you don't have to deal with wires, but you do have to deal with batteries. It also means that unless you really understand what's going on, it's very possible that someone else could hijack your keyboard and capture your password.
Oh, and Bluetooth uses roughly the same tech as Wifi, which means that the next proposed upgrade to Bluetooth is finally going to be around the speed of USB 2.0.
Don't thank God, thank a doctor!
It is not just the dependance on the processor that makes the "slower" FireWire 400 beat out USB 2.0 (the fast one... whatever they are calling that today). A rough outline:
1) FireWire allows devices to allocate a specific slice of time to their needs for a period of time. This slice of time can then be used exclusivly by the device to transmit that round of data. This keeps devices from interupting the flow durring those periods. USB has a part-way analog to this, but it is not nearly as efficent.
2) FireWire allows any device to talk to any other without requiring a CPU's intervention. So if you are transfering from on HD to another connected via FireWire the data never has to flow thorugh the CPU (unlike on USB).
3) FireWire has explicit support for DMA (direct memory access), so when transfering data to and from an internal HD the CPU only has to grant access to the bits on disk and the FireWire support chips can handle streaming the data from one storage device to the other (like #2, but lightly different).
4) Latency can be gaurenteeded through a mechanism in the time-slice arbitration system. So audio devices can have the guaranteed chanels. On USB it is a constant fight... that does not work for music devices if you start loading up the USB system. This works well with the DMA thing, so even if your CPU is busy at the moment it does not have to make the context switch before accepting the data.
Most of these differences are inherint in the basic design of the two protocols. And they cause the FireWire bridge chips to be significaly more expensive (still we are talking a mater of a dollar or two). I have not heard any good analasis of USB 3 yet (since the spec just came out), but I suspect that USB 3.0 will still be saddled with the legacy of USB 1.0 (which was designed with mice an keyboards in mind... everything else seems to have been showhorned in).
Person marked me as "flamebaiter" would be surprised but I am not really a big USB2 hater. For example, my colour laser is connected via USB2 and performing really good. Also my scanner, my time machine backup drive and so on.
I seriously wonder if Intel really stopped such childish "use CPU" or "don't include overhead in speed" tricks as they are in very good shape now.
I will plant 120 meters of cable just because of USB2 CPU overhead, imagine that. I seriously didn't know the overhead could hurt that much.
Don't have time to read the article, but historically one of the advantages of USB has been that almost any perpipheral, high speed, or low speed, can be plugged into the same type of connector, so users don't have to worry about which plug to plug the keyboard into, which for the mouse, which for an external hard drive, camera, thumb drive, etc. That is the real beauty of USB - the 'universal plug'. Which is one reason I'm worried about an 'optical' version of USB - because that would seem to require a new plug type which I suspect would not be backwards compatible?
I *hope* that 'tweaked' USB 3 connector is backwards compatible with older USb connectors and hardware, so you can still plug the keyboard, printer, mouse, scanner, etc into it, *but also* plug in future high speed hard drives, network adapters, HDTV tuners, blu-ray burner drives, etc. I really like the idea of a universal plug for everything. It makes computers so much simpler to work with.
That's part of why I don't like the idea of e-SATA - unless I'm mistaken (haven't looked much at eSATA yet) it's introducing a new interface type which is basically not compatible with USB, requiring a differing plug.
I would define too many as in proportion to what firewire requires. So theoretically if the two interfaces are at full potential speed the USB 3.0 should not require in excess of 36% more processor than Firewire 3200 does. So if the processor load increase was proportionate to the speed increase I would be happy. My 2 machines are dual core and 8 core and include firewire built in. But if they and their peripherals were less expensive due to standardization on a single port type, woohoo. However we have seen what happens when there is a lack of competition.
USB On-The-Go was designed to give USB some of the peer-to-peer abilities of FireWire.
Support Right To Repair Legislation.
In my previous post I mentioned the issue of connecting old hardware to newer hosts, but you also have to consider the other way too. . .
If they implemented USB 3 in a similar fashion to USB 2, the new hardware is backwards compatible with older USB hosts, back to version 1.0. Sure, it'll be slow on version 1.0 (in the case of something like an HDTV Tuner, it might have to downconvert the video stream to lower resolution when connected to a slower host), and even on 2.0 it'll be slower than it would if connected to 3.0 (though for a lot of devices, 2.0 is at least fast enough to be useful), but backwards compatibility is a huge market win. It means that as a device maker, I'm not limiting my market to only the people with the latest and greatest hardware - the hardware can gracefully 'downgrade' to work with the huge number of computers that have USB 2.0 and 1.0 but not 3.0 yet.
Backwards compatibility is both good business and good engineering (when possible; it's true that in some cases, the cost of backwards compatibility could be so high that it does not make economic sense to bother, but I don't think with something like USB that tends to be a 'blocking' level problem).
Will we ever see a storage medium that can move data that fast?
Simply fill a container ship with a million LTO tapes and there you go, truly, unimaginably vast bandwidth.
Deleted
1.5 Mbit/s Low Speed
12 Mbit/s Full Speed
480 Mbit/s High Speed
4.8 Gbit/s Super Speed
4E+08 Gbit/s Plaid!
"Reality is that which, when you stop believing in it, it doesn't go away." - Philip K. Dick
But USB 3.0 appears to need six conductors: power, data from host, data from device, and ground for each. I haven't seen a TRS connector with more than four conductors (tip, two rings, sleeve).
Picture this, 8 pins in a row.
1 VCC
2 GND
3 D-
4 D+
5 D+
6 D-
7 GND
8 VCC
No matter which way you plug it in, the pinout would've worked fine. The additional cost to manufacture an 8-pin USB cabling system versus the current 4-pin scheme would've been negligible.
I believe that firewire is peer to peer, while USB is master/slave. In theory that means that you can connect any two firewire-capable devices and have them talk to each other, which is not possible with USB (you need a hub). I've never actually tried that though, and so cannot personally confirm it.
The iPod was originally designed to be able to share files by simply connecting two iPods. Once the iTunes possibility presented itself, it was one of the first things to be disabled to satisfy record label interests, along with the ability to record audio.
War as we knew it was obsolete
Nothing could beat complete denial
- Emily Haines
...how many L.O.C./s this thing can transfer!
There are mountains to cross for those that are willing.
So you happen to have a TRRRRS connector? as TFA seems to state that USB3.0 over wire will need 6 conductors. (power, ground, data to device, data from device, and grounds for each data line), presumably to get the SNR high enough to allow higher speeds.
upon the advice of my lawyer, i have no sig at this time
Who thought a zero could be so important?
Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
Not quite true. A lot of slashdotters have a girlfriend in Canada. ;)
5) Firewire has dedicated differential wire pairs for input and output. USB 1/2 only has one pair, so the total theoretical capacities are 480 vs. 400+400 Mbps. There's also some latency involved in negotiating the switch of direction.
From a link in the article it looks like USB 3 will have dedicated differential pairs. Great, just like Firewire and Ethernet have had for ages.
Escher was the first MC and Giger invented the HR department.
My native language is Finnish but I actually started thinking partly in English since I was 10 or so (and knew only some English). :D
Originally it was just something to keep my mind occupied - I'd be thinking in Finnish and then just switch to English and later back again. Later on it would also happen pretty much automatically when ever I read or heard English.
I'd even go so far as to say it's the second most important reason why I've never had problems learning English - the first being computer games
But I've never been able to do that well in other languages...
Not to mention that vertically oriented jacks are not uncommon. In fact I think it often make more sense to have a vertical jack.
Out of curiosity, how does PCMIA slots on laptops fare for firewire components? I'm specifically interested in your point #4 for my laptop. Sound modules mostly are Firewire, so how well would a firewire adapter in my PCMIA slot work vs. a USB sound module?
I haven't found much to suggest anything at all...
I'm god, but it's a bit of a drag really...
I clmeepoty dregsaie.
That study was only acapblilpe to small words for the most part. Ohiswerte welthsors.
Yes, you can make it out if you try hard enough - much of that is based on context. Heck, it takes ME a while to figure those words out, and I *typed* them.
Endless arguments over trivial contradictions in books written by ignorant savages to explain thunder in the dark.
You know Firewire 800 where Windows caps it at 100MB, and if you hack your registry to override it you risk blowing out any FW400 and under devices that you connect to the port...
Or would it be like USB 2.0 that actually only get's about 7-9MB throughput in practice?
This should be fun to see.
You forget that firewire 800 exists today.
Nope. I forgot nothing. I primarily use firewire 800. I was comparing next generation standards of these products. Firewire 3200 (3rd major revision) to USB 3.0 (3rd major revision). Firewire 800 is definitely my first choice here and now. ESATA has promise as well. Drivers on my favorite platform (Mac) currently suck for it. I haven't seen many speed comparisons of ESATA vs Firewire 800 on other platforms to see if this is endemic of ESATA across platforms. I could be wrong or there could be exceptions, but I'm guessing most Windows and Linux users don't use Firewire 800 much.
Anidroccg to crad cniyrrag lcitsiugnis planoissefors at an uemannd, utisreviny in Bsitirh Cibmuloa, and crartnoy to the duoibus cmials of the ueticnd rcraeseh, a slpmie, macinahcel ioisrevnn of ianretnl cretcarahs araepps sneiciffut to csufnoe the eadyrevy oekoolnr.
One that hath name thou can not otter
USB 3 low speed==USB 2 low speed==USB 1 low speed
USB 3 full speed==USB 2 full speed=USB 1
USB 3 hi speed==USB 2 hi speed
USB 3 ultra hi speed?
Those Molex power plugs can get impossibly stuck. One time I had to tug on one with a great deal of force for literally 30 minutes before it loosened up.
I think somebody makes a Molex-pulling tool, but I haven't been able to find it.
That that is is that that that that is not is not.
FireWire 800 is on its way out, because FireWire S3200 (3.2 Gbit/s) is on its way in.
http://en.wikipedia.org/wiki/FireWire#FireWire_S1600_and_S3200
That that is is that that that that is not is not.
If she likes it den dat taint da wong way, ya can tell from da feedback signal, eeyowwee you sob! == wong way but oohhhoo baby! == uhuhuh!
wabi-sabi
matthew
what is the benefit?
e.SATA cables fall out if you sneeze in the same room.
USB connectors only fall out if you put minute tension on the cable.
Gosh, was RJ-45 really so hard to beat?
My God, it's Full of Source!
OUTSIDE_IP=$(dig +short my.ip @outsideip.net)