ExpressCard/34 & ExpressCard/54 For EVDO |
| Tuesday, 10 January 2006 | |
What is an Express Card Module?An ExpressCard module is a small, modular add-in card technology intended to be used in desktop and mobile computing platforms. The ExpressCard solution accommodates the replacement of conventional parallel buses for I/O devices with scaleable, high-speed serial interfaces. Two classes of serial interfaces are implemented by this solution, PCI Express, a high performance, integrated I/O interconnect solution, and USB for the ease of upgrading PC Card technologies and integrating popular external peripheral functionality via the ExpressCard module form-factor. Two standard module formats are specified: an ExpressCard/34 module and an ExpressCard/54 module. The ExpressCard solution is designed to support a universal slot configuration that allows either ExpressCard/34 or ExpressCard/54 modules to function in the same slot. Host solutions that implement slots that only support ExpressCard/34 modules are also allowed by this standard. The ExpressCard architecture is based on an extensible, modular implementation, allowing multiple slots (see Figure 2). In any multi-slot host implementation, all slots provide equivalent I/O interface functionality. Both module formats afford access to the same I/O interface performance and source power although the larger ExpressCard/54 module affords the application nominally 140% the internal volume and 160% the thermal dissipation capacity over the ExpressCard/34 module. There are two formats of the standard ExpressCard modules in this specification: the ExpressCard/34 module characterized by its 34 mm width and the ExpressCard/54 module characterized by its 54 mm width.   Many new laptops are now including ExpressCard, such as the new Apple MacBook Pro.  What EVDO Cards Are Available in ExpressCard Format?Currently none. This list we be updated as more information becomes available. Related Articles: |
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| Last Updated ( Monday, 25 September 2006 ) |
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