Thu Nov 8, 2007 10:12PM EST
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USB, that little rectangular plug that can be found on just about every computer peripheral cable you come across, is one of the biggest success stories in the history of computing. Ditching the slow serial and parallel cables of yore and replacing them with a fast, universal standard that could draw power and allowed connecting of dozens of peripherals without rebooting... well, it was genius. When USB 2.0 arrived, with much faster performance, it got even better. It's not hyperbole to say that USB, despite its humble status as a mere connector, is one of the most important computer technologies to ever be invented.
Well, USB fans, things are going to get even more interesting and soon. USB 2.0 may be fast enough right now, but with more high-definition video products arriving and bigger and bigger files being transferred, that won't be the case forever. Enter USB 3.0, which moves the bandwidth needle from 480Mbps to roughly 4.8Gbps, 10 times faster than the current version.
The new standard, which was recently demonstrated using a new optical cable (but the same connector), will be backward compatible with older USB formats and promises better power efficiency, too, in order to decrease the load on portable devices. Possibly in the works: Better ability to charge devices over USB, some of which still require an A/C adapter or two USB connections to draw enough juice.
Specs are planned to be delivered early next year with commercial availability for 2009. Just do us a favor and clearly label USB 3.0 products with an appropriate logo this time! (USB 2.0 got caught up in a mini scandal when vendors started labeling USB 1.1 products as "USB 2.0 capable," with vendors later claiming they only meant the products worked with USB 2.0 connections. Fail!)
LINK: USB: The next generation
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4.8 Gbps. Wow, I like that. That'd almost make me wonder if the technology couldn't be adapted for use in LANs to repplace gigabit ethernet. I mean, gigabit is fast for internet, but what if you could adapt this for computer-computer connections, that'd be cool.
A current problem with that idea, dcsoccer25, is that USB is only reliable for short stretches, usually 30 feet max... and even that's pushing it. Perhaps the new optical cable could change that, though... Another issue: multi-gigabit ethernet is already out, too. 10Gig ethernet came out last year...
Hmm. I personally think they're going way too far.
USB can't be daisy chained. Firewire can. So can SCSI.
Will there be USB 3.0 support in Windows XP,because Windows XP will be in extended support in 2009?
simon - good point, sloppy writing on my part. corrected!
I can't keep up with this.
Hope they can really boost the amount of juice that can be pulled through. I have a G15 keyboard that has 2 usb ports on the back, of which I am unable to use anything that draws power because the G15 already consumes the max output.
Although most of you might think 4.8 Gbps is fast remember that it will never achieve that speed. Current USB 2.0 is 480 Mbps yet the average transfer speed you will achieve is around 24 Mbps. So with USB 3.0 I wouldn't expect to see transfer speeds much higher than 240 Mbps....
1 Posted by somebodys_here on Thu Sep 3, 2009 9:32PM EDT Report Abuse
Great... more new tech to try out! Fun uh un.