|jmke ||19th August 2008 10:14 |
USB 3.0 connectors look exactly like USB 2.0
No doubt you’re familiar with the Universal Serial Bus – we ranked it as our top PC innovation of all time. But what do you know about the next version of this ubiquitous interface? USB 2.0 (otherwise known as USB Hi-Speed) boosted the original 12Mbps data rate to 480Mmb/s over eight years ago, and now USB 3.0 (dubbed USB Superspeed) is set to multiply that bandwidth tenfold. The USB Implementers Forum (led by Intel) released the USB 3.0 spec to hardware partners last week after some reported disputes with AMD and Nvidia (who, afraid Intel would have a jump start in incorporating the tech in chipsets, threatened to develop their own USB standard). But how does this affect you? We dug up some new information about USB 3.0, got our hands on the new connectors, and even took a look inside the new cables. http://www.maximumpc.com/article/fea...d_cable_photos
|Kougar ||20th August 2008 10:16 |
One of the mandates of the new spec is more efficient power-usage protocols. USB 3.0 abandons device polling in favor of a new interrupt-driven protocol, which means non-active or idle devices (which aren’t being charged by the USB port) won’t have their power drained by the host controller as it looks for active data traffic.
Never knew this was why... had noticed if I left my digital camera plugged in it would run down the battery and wondered about that.
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