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Now we wait for devices to show up

Several years ago when PCI-Express was being developed, the technology was also being designed to support devices outside of the traditional computer enclosure. While "internal" PCI-Express took off, development and support for external devices was slow. This week, the PCI Special Interests Group (PCI-SIG) announced the availability of the PCI-Express external cable specification revision 1.0.

With the new specifications fully defined, cables will be developed for all PCI-Express link widths including: x1, x4, x8 and x16. This allows for devices such as external high-speed storage controllers, network or fabric interfaces and graphics adapters to use the technology.

According to PCI-SIG chairman Al Yanes, external PCI-Express products should now be in full development and show up on the market in less than a year. "This specification helps the industry create new products that will take PCIe technology out of the box – enabling PCIe solutions for IO expansion drawers, external graphics processors, tethered mobile docking, communications equipment and embedded applications,” said Yanes.

External PCI-Express devices will be able to use signaling rates up to 2.5 gigatransfers per second (GT/sec). Of course, the host, adapter and cable must be able to support those speeds, but the future looks promising according to the specification's outline. Later on, 5GT/sec. rates will be possible. Some applications for this type of technology include stacking storage arrays together by using the external PCI-Express interconnect rather than relying on Gig-E networking.

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RE: Asus already at it.
By Sureshot324 on 2/10/2007 12:16:19 PM , Rating: 2
This could mean the end of USB sometime down the line. PCI-Express is already hot-swapable, and if your PC only needs one PCI-E controller instead of both a PCI-E AND USB controller it should be cheaper, simpler, and use less power.

Of course it would take a loooong time for USB to die because of the thousands of USB devices that are already out there.

RE: Asus already at it.
By Zoomer on 2/11/2007 2:46:24 PM , Rating: 2
Are you serious?

PCIe for a keyboard. Wow. :p

USB will be with us for a long time. It's cheap and works well for what's it designed to do (slow HIDs, not storage or comms).

RE: Asus already at it.
By Sureshot324 on 2/12/2007 11:48:58 AM , Rating: 2
Why not? I doubt a PCI-E keyboard would be any more expensive once it got mainstream, and I can't see any other disadvantage compared to a USB keyboard.

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