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USB 3.0 Connectors On Show

By - Source: Tom's Hardware | B 12 comments

Maximum PC has managed to get its hands on the new USB 3.0 cables and have posted an article showing off the connectors for the new standard.

The new USB 3.0 standard, also known as USB SuperSpeed, brings about an impressive 10x increase in bandwidth from the old USB 2.0 standard, which topped out at 480 Mbps. This makes it theoretically possible to transfer a 27GB HD movie in just 1 minute and 10 seconds, as opposed to 15 minutes with USB 3.0. Of course, speeds will be limited by other devices such as your hard drive and portable device, as well as the Mass Storage Device drivers to be provided by Microsoft for Windows. The specification is backwards compatible with older USB specifications.

The USB 3.0 A-connector is noticeably different to its USB 2.0 counterpart. The extra contacts visible on the ends of the connector are for the new data pipes included with the new specification. Two of these pipes are for sending data, while another pair is for receiving data. This bi-directional design allows data to be sent and received at the same time. The older USB specifications only allowed one-way traffic. The downside to having the extra data lanes is the cables have a larger radius than USB 2.0 cables.

In addition, the new standard provides for an increase in power output from 100mA to 900mA, allowing more power-hungry devices to be charged via a USB 3.0 cable, and increasing the number of devices that can run off a USB hub. A change in power-usage protocols has also been made to reduce power wastage on idle devices. The host controller no longer polls the device to check for data transmission. Instead, the devices sends an interrupt signal to the host indicating that it is ready to transfer data.

Intel indicated that it should be running USB 3.0 demonstrations at the Intel Developer Forum in San Francisco.

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  • 3 Hide
    jaragon13 , August 19, 2008 10:28 PM
    Sexy.
  • 0 Hide
    timaahhh , August 19, 2008 10:44 PM
    So can I use a USB 3.0 cable in a USB 2.0 port and can I use a USB 2.0 cable with a USB 3.0 port? Can I still use all my USB 2.0 Gear with USB 3.0???
  • -2 Hide
    frozenlead , August 19, 2008 10:46 PM
    Man...I was really hoping it'd all be backward compatible.
  • 2 Hide
    one-shot , August 19, 2008 11:14 PM
    This guy obviously didn't read the article^^. Lazyness.....
  • 0 Hide
    randomizer , August 19, 2008 11:52 PM
    Guys read the article :sarcastic: 

    ArticleThe specification is backwards compatible with older USB specifications.
  • -3 Hide
    frozenlead , August 20, 2008 12:35 AM
    Sue me, I skipped the one sentence, I read it real fast.
  • 0 Hide
    Joe_The_Dragon , August 20, 2008 12:52 AM
    And you need a full power of 1 full cpu core or more to hit full speed and firewire 1600 and 3200 will kick usb 3.0 ass while useing the same cables as firewire 800 with less cpu load.
  • 0 Hide
    V3NOM , August 20, 2008 7:36 AM
    "This makes it theoretically possible to transfer a 27GB HD movie in just 1 minute and 10 seconds, as opposed to 15 minutes with USB 3.0"

    no one else pick that out lol...
  • 0 Hide
    sacre , August 20, 2008 3:01 PM
    ^^^

    I did, first thing i said was "wait..what?"

    Such obvious errors always ignored, or skipped.
  • 0 Hide
    silversquare , August 20, 2008 4:01 PM
    I noticed that there is a typo that some of you may have alluded to it already...

    The sentence:
    'This makes it theoretically possible to transfer a 27GB HD movie in just 1 minute and 10 seconds, as opposed to 15 minutes with USB 3.0'

    Should end with:
    '1 minute and 10 seconds, as opposed to 15 minutes with USB 2.0'
  • 0 Hide
    ZootyGray , August 20, 2008 6:21 PM
    not too clear on HOW back-compat it really is.

    I think they are selling bits of wire for $20.

    pass.
  • 0 Hide
    SAugsburger , August 25, 2008 2:30 AM
    "In addition, the new standard provides for an increase in power output from 100mA to 900mA,..."


    USB 2.0 requires 500mA, not 100mA.

    Source:
    http://www.usb.org/developers/usbfaq/