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Old 09-20-2007, 03:35 PM   #1 (permalink)
djmaddogfreak
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Default Usb 3.0

Check this out...


The "SuperSpeed" USB Promotions Group was announced Tuesday at the Intel Developer Forum. The promotions group will get together with contributors over the next year to finalize a USB 3.0 spec that will, they hope, take care of our wired peripheral and syncing needs for another five years or more.
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USB 3.0 is built upon, and is backwards-compatible with, the USB 2.0 "High Speed" spec. It would be generous to even call the specifications "early" at this stage, but the group still had lots of information about how USB 3.0 will work and what features it will provide. The spec should be finalized sometime in the middle of 2008, with initial devices available in '09, and broad deployment by 2010.

The main two goals of SuperSpeed USB are to provide a 10X boost in transfer rate (from 480-Mbits/s in USB 2.0 to 4.8 Gbits/s in USB 3.0), while dramatically lowering power consumption. One example of their speed goals is to transfer a 27GB HD movie to a portable device in 70 seconds. The same thing would take 15 minutes or more with HighSpeed USB (2.0). The SuperSpeed devices will use the same connectors and the same programming and device models as existing devices.

Consider that it takes maybe one or two tenths of a second to transfer a typical 4 Mbyte song to a portable music player with today's USB 2.0. That's "fast enough" for some users, but just try to fill up that 80-Gbyte iPod and you might as well walk away and cook dinner while you wait: 3,000 songs would take perhaps 400 to 600 seconds – up to 10 minutes.

Nobody wants to sit at their computer for that long, but if you could get it to under a minute, you're on to something. That's the performance aim of USB 3.0.
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Old 09-21-2007, 06:40 AM   #2 (permalink)
TheEnd187
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Default Re: Usb 3.0

bs it takes my WDMYBOOK like 1 1/2hrs to transfer 4Gb. So 27Gb in70 mins would benice even with usb2.0
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