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USB 3.0: freakishly fast - maybe

Jan 12, 2010, 15:32 (0 Talkback[s])
(Other stories by Robin Harris)

"You'll be hearing a lot about USB 3.0 this year. And well you should, because its potential is vast. But will system vendors step up to the plate to deliver all of USB 3's goodness?

"Speeds und feeds

"USB 2.0 has never delivered the advertised 480 mbits/sec because that number technically correct and operationally bogus. If you have data transferring in both directions at the same time it could happen - but for USB disks it never does. That drops the theoretical transfer rate to 240 mbits/sec, but because of protocol overhead - for example, some signal redundancy to increase data integrity - the payload bandwidth is still lower."

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