An exploratory article in Digitimes has exposed the smart idea behind VIA Labs' USB2Expressway technology. As the article explains, although the uptake of USB 3.0 in the consumer segment has been impressive, the embedded and industrial markets haven't made the switch quite so readily. The VIA Labs USB2Expressway targets the reasons behind this and offers a compelling solution.
"USB2Expressway applies VIA's USB 3.0 Enhanced HUB concept and unique, independently-developed U3TT chip technology to the "one to many" control model used in many industrial control sectors, providing ample bandwidth of 480Mbps to every USB 2.0 device connected downstream of the hub. USB 2.0 devices used to only be able to share the bandwidth provided by the USB 2.0, so even when no devices were using the USB 3.0 hub's bandwidth, the connections just sat idle. As Hsu explained, VIA's unique design means that USB 2.0 devices on its USB 3.0 Enhanced HUB can now use the up-to-5Gbps of USB 3.0 bandwidth. This makes it possible for every USB 2.0 device on the hub to access the full 480Mbps, markedly boosting device performance."
"USB2Expressway applies VIA's USB 3.0 Enhanced HUB concept and unique, independently-developed U3TT chip technology to the "one to many" control model used in many industrial control sectors, providing ample bandwidth of 480Mbps to every USB 2.0 device connected downstream of the hub. USB 2.0 devices used to only be able to share the bandwidth provided by the USB 2.0, so even when no devices were using the USB 3.0 hub's bandwidth, the connections just sat idle. As Hsu explained, VIA's unique design means that USB 2.0 devices on its USB 3.0 Enhanced HUB can now use the up-to-5Gbps of USB 3.0 bandwidth. This makes it possible for every USB 2.0 device on the hub to access the full 480Mbps, markedly boosting device performance."
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