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Patchy
November 22nd, 2008, 06:55 AM
Version 3.0 of the universal serial bus specification has been released.

Unveiled on Monday by the USB Implementers Forum, the USB 3.0 spec can theoretically support data-transfer speeds of up to 4.8Gbps — 10 times the speed provided by USB 2.0.

The new standard, also known as SuperSpeed USB, is also expected to be more power-efficient than its predecessor.

"SuperSpeed USB is the next advancement in ubiquitous technology," Jeff Ravencraft, the president of the USB Implementers Forum (USB-IF), the industry group that promotes USB technology, said in a statement on Monday. "Today's consumers are using rich media and large digital files that need to be easily and quickly transferred from PCs to devices and vice versa. SuperSpeed USB meets the needs of everyone, from the tech-savvy executive to the average home user."

The USB-IF hopes USB 3.0 will be built into computers from late 2009, with consumer products using the specification starting to appear the following year — or roughly a decade after USB 2.0 made its appearance. According to the industry group, the first such products will include external hard drives, flash drives, digital cameras and personal media players.

The specification was designed to be backwards-compatible with earlier iterations of USB.

Companies that were instrumental in developing USB 3.0 include Intel, HP, Microsoft, ST-NXP Wireless, NEC and Texas Instruments. Intel had taken the lead in the specification's development, but only made a draft specification available to companies such as AMD and Nvidia in August of this year. Prior to that release, there had been concerns that the USB 3.0 specification would be forked into divergent versions.

Kiros
November 22nd, 2008, 07:08 AM
Awesome. I was wondering when/if 3.0 would come into the industry. That's quite a jump in speed. Hopefully the actual throughput will be close to the theoretical speed.

Aηdy
November 22nd, 2008, 07:20 AM
Awesome. I was wondering when/if 3.0 would come into the industry. That's quite a jump in speed. Hopefully the actual throughput will be close to the theoretical speed.

I was thinking the same, but it's mostly down to the device being able to produce those speeds.

USB 2.0 was a massive improvement from USB 1.1, so I hope USB 3.0 is just as good!

Falk 'Ace' Flyer
November 22nd, 2008, 11:33 AM
Meh, USB speed isn't very important. I mean, when was the last time you waited more than a few minutes to transfer something? If you have, chances are this speed increase wouldn't have stopped you form leaving it to finish overnight =P

Kiros
November 22nd, 2008, 12:31 PM
Well a faster USB throughput speed would allow for larger streams (i.e. better webcam quality). Also, for those that have large, external drives (more than 1GB), it could massively improve speed of backups and such.

Jesse
November 22nd, 2008, 12:47 PM
4.8Gb/s (600 Mega Bytes/s)?!?!? Damn, most HDD's can barely read data at 1.5Gb/s (180 Mega Bytes/s). Even Solid State Drives are having trouble getting up to 2.0Gb/s (250 Mega Bytes/s). I guess by the time USB 3.0 is released, SSDs will be around 3.0Gb/s, which is close enough. :p

Aηdy
November 22nd, 2008, 12:48 PM
USB 3.0 will replace firewire most probably too.

4.8Gb/s (600 Mega Bytes/s)?!?!? Damn, most HDD's can barely read data at 1.5Gb/s (180 Mega Bytes/s). Even Solid State Drives are having trouble getting up to 2.0Gb/s (250 Mega Bytes/s). I guess by the time USB 3.0 is released, SSDs will be around 3.0Gb/s, which is close enough. :p

Were the hell are you getting those figures from? 4.8Gb/s = 4800Mb/s. 1.6Gb/s = 1600Mb/s. 2.0Gb/s = 2000Mb/s.

And thats just what USB 3.0 will be capable of. Hard drives can easily read at 150mb/s+ now, and there's no point in making USB 3.0 capable of up to 300mb/s when in a few years time hard drives are just going to get faster and faster.

Jesse
November 22nd, 2008, 12:53 PM
Little b = bits
Big B = Bytes

Bits and bytes have a conversion rate of 8. So 4.8Gb/s = 600MB/s and so on.

Edit: I was just putting it in a language most PC users can understand, since most of us don't work with bits, but rather with Bytes.

Kiros
November 22nd, 2008, 10:43 PM
Well, the math is just a bit off because of the difference in sizes (bytes are incremented in 1024 sets while bits work with 1000 sets).

So 4.8Gb/s is really equivalent to just above 572.2 MB/s.

1,000,000,000 bits = 1Gb
4,800,000,000 bits = 4.8Gb

4800000000 bits / 8 = 600000000 bytes

600000000 bytes / 1024 = 585937.5 kilobytes

585937.5 kilobytes / 1024 = 572.20458984375 megabytes

But, yeah, for the most part, Jesse is right.