USB 3.0 in the flesh
Get ready, speed freaks.
USB 3.0, the oft-rumored, much-discussed, rarely seen new standard heading our way has been spotted, sliced, chopped, and diced at CES 2008. Actually, we just got a chance to check the connectors and compare with the old 2.0 standard (which the reps tell us is backward compatible, of course). With speeds of 4.8 Gbit/s (600 MB/s), and a powering system which intelligently cuts the juice when you're not using a device, we have a feeling you'll want. Too bad we all have to wait till 2010... the year we make contact... with USB 3.0.
Intel is working fellow USB 3.0 Promoters Group members Microsoft, Hewlett-Packard, Texas Instruments, NEC and NXP Semiconductors to release the USB 3.0 specification in the first half of 2008, said Pat Gelsinger, general manager of Intel's Digital Enterprise Group, in a speech here at the Intel Developer Forum.
In an interview after the speech, Gelsinger said there's typically a one- to two-year lag between the release of the specification and the availability of the technology, so USB 3.0 products should likely arrive in 2009 or 2010. A prototype shown at the speech is working now, and USB 3.0 will have optical and copper connections "from day one," he added.
The current USB 2.0 version has a top data-transfer rate of 480 megabits per second, so a tenfold increase would be 4.8 gigabits per second. Many devices don't need that much capacity, but some can use more, including hard drives, flash card readers and optical drives such as DVD, Blu-ray and HD DVD. The fastest flash card readers today use IEEE 1394 "FireWire" connections that top out at 800 megabits per second.
In addition, USB 3.0 will offer greater energy efficiency, Gelsinger said. It will be backward compatible, so current USB 2.0 devices will be able to plug into USB 3.0 ports.