IDF 2008: "SuperSpeed" USB 3.0 Demoed At IDF

07:10 - Friday 22 August 2008 by Humphrey Cheung
Source: Tom's Hardware US – Keywords: superspeed, usb, 3.0, idf, intel Category : Miscellaneous

San Francisco (CA) - We’re drowning in data and sometimes USB 2.0 just isn’t fast enough to move all those bits around. At the Intel Developer Forum in San Francisco, we were shown prototype USB 3.0 boards and cables that were transferring at more than 307 MB per second.

On paper USB 3.0 promised to be ten times faster than 2.0 and has the potential to transfer 600 MB per second. The USB 3.0 coalition proclaims this is fast enough to transfer 27 GB in just 60 to 70 seconds.

The USB 3.0 port is backwards compatible with USB 2.0 devices meaning you’ll be able to plug old devices into the new hubs/ports. Several companies were showing off their protocol analyzers which help test the signal integrity and speeds of end-user products.

A rep from ellisys said flash memory and hard drive storage capacities are outstripping USB 2.0 transfer speeds. Case in point, I often fill up 4 and 8 GB Compact Flash cards while photographing car shows and these things take forever to empty on a USB 2.0 card reader.


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americanbrian 22/08/2008 09:31
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americanbrian

Isn't 307MB/s faster than SATA II interface. Surely it will start making more sense to use it as a drive bus interface if it can go up to 600MB/s


We need faster HD's. pretty soon this will be the main bottleneck of a system.

jonnyhuk2 22/08/2008 04:16
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jonnyhuk2

"I often fill up 4 and 8 GB Compact Flash cards while photographing car shows and these things take forever to empty on a USB 2.0 card reader"...

think you'll find that's limited by the speed of your compact flash cards and readers, not USB2... 1x speed is 150kB/s so even 100x speeds can only transfer at 15MB/s.

To get more speed, you need "UDMA enabled" CF cards plus a UDMA compatable camera or card reader and they're rare (and cost 4x more of course).
http://dpnow.com/4445.html
http://www.lexar.com/readers/index.html

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