Feeds

USB 2.0 to reach 480Mbps – official

Target speed set with draft specification release

  • alert
  • submit to reddit

Security for virtualized datacentres

The USB Promoter Group yesterday released the draft specification for USB 2.0, taking the target data transfer rate up to 480Mbps, a fortyfold increase on the current version's throughput. Released to delegates at the USB Developers Conference, the new spec. calls for full compatibility -- forward and backward -- with USB 1.1, so at least no one is going to have to chuck out their old peripherals. The USB Promoter Group clarified its stance on IEEE1394 (aka FireWire and iLink): USB 2.0 will become the be all and end all of PC connectivity and 1394 will continue to exist in the consumer electronics space, connecting digital VCRs to digital TVs and the like. In the USBPG worldview, the only PCs that require 1394 will be those that need to connect to such devices -- all other high bandwidth devices, such as fast hard drives, will clearly be hooked up via USB 2.0. As the Technical Introduction to USB 2.0 puts it, even "high bandwidth interfaces such as SCSI adapters may no longer be required". So where we once had 1394 replacing SCSI while USB replaced the old serial and parallel ports, we now have USB 2.0 replacing everything. USB 2.0 is unlikely to supersede 1394, though, since it retains the need for a hub -- unlike 1394, there's no peer-to-peer operation; data can only from device to device via the hub. In fact, hubs will take on a greater role with USB 2.0 since they will have to arbitrate data traffic flowing at 480Mbps and the original 12MBps and 1.5Mbps. At least in the draft spec. there appears to be no plans to change this hub-based mode of operation, or to increase the number of devices the chain can support. Now the draft specification is in place, peripheral developers are at last able to map out their support for the technology. The final version of the USB 2.0 spec. is due sometime in the first quarter of next year, with the first devices using it coming to market in the second half of 2000 after volume production of USB 2.0 chipsets has been reached. ®

Security and trust: The backbone of doing business over the internet

More from The Register

next story
Phones 4u slips into administration after EE cuts ties with Brit mobe retailer
More than 5,500 jobs could be axed if rescue mission fails
JINGS! Microsoft Bing called Scots indyref RIGHT!
Redmond sporran metrics get one in the ten ring
Driving with an Apple Watch could land you with a £100 FINE
Bad news for tech-addicted fanbois behind the wheel
Murdoch to Europe: Inflict MORE PAIN on Google, please
'Platform for piracy' must be punished, or it'll kill us in FIVE YEARS
Phones 4u website DIES as wounded mobe retailer struggles to stay above water
Founder blames 'ruthless network partners' for implosion
Sony says year's losses will be FOUR TIMES DEEPER than thought
Losses of more than $2 BILLION loom over troubled Japanese corp
Radio hams can encrypt, in emergencies, says Ofcom
Consultation promises new spectrum and hints at relaxed licence conditions
Why Oracle CEO Larry Ellison had to go ... Except he hasn't
Silicon Valley's veteran seadog in piratical Putin impression
Big Content Australia just blew a big hole in its credibility
AHEDA's research on average content prices did not expose methodology, so appears less than rigourous
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.