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[dvHW] USB 3.0 on track for 2009

post #1 of 6
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Quote:
Hexus heard at the IDF in Shanghai last week that USB 3.0 is on track for deployment in Q2 2009. SuperSpeed USB 3.0 will feature data transfer speeds of up to 5Gbit/s (640MB/s) - which is a lot more than HDDs can handle.
Ravencraft commented that SuperSpeed USB is architected for a five-year lifespan, where, in the same timeframe, flash-based drives will comfortably surpass magnetic drives' transfer speeds. SuperSpeed USB, then, will primarily be best-leveraged with flash drives that can comfortably sustain transfers over 50MB/s.

Thinking about power, incumbent USB 2.0 continuously polls the host, evaluating whether there's traffic, wasting energy, he noted. SuperSpeed, however, is interrupt-driven, meaning that it only talks to the host when ready to transfer, reducing the power profile. This protocol won't change as SuperSpeed scales higher in speed.

Further, SuperSpeed uses two differential pairs to scale to 5Gbit's transfer speed, and that's available on cables up to three metres long. Initial SuperSpeed cables will feature both optical-fibre and copper wires at launch, but we suspect that due to keeping costs down, copper-based wires will be more widely used.

Source
post #2 of 6
WOW sounds cool. That 640MB/s is a massive boost over the current which is 60MB/s I think.
    
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post #3 of 6
Thats great. I love USB 2.0 compared to USB 1.0. So 3.0 should be awesome.
post #4 of 6
so when will USB make SATA obsolete...
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post #5 of 6
OMG I have to go change my pants now...
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post #6 of 6
Quote:
Originally Posted by xlink View Post
so when will USB make SATA obsolete...
I think there is a difference between the way SATA and USB work. Even with current USB 2.0 offering up to 60MB/s My 160GB HDD that normally gets an average transfer rate of about 55-60MB/s in my PC using SATA only gets a max of 25-30MB/s when I put it in an external HDD case on run it throw USB.

It doesn't really matter though as no current hard drive or solid state drives offer transfer rate even close to the 300MB/s that STAT has to offer.

The best my RAID0 setup got with two 160GB 7200RPM drives was 115MB/s.
    
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