“Qseven was defined from scratch for mobile and carries no old embedded computer interfaces,” Eder continues. “The maximum power consumption for Qseven is defined at 12 W – the first definition for COM Express defined a 188 W maximum – this example clearly shows the thinking behind the specification.”
Qseven supports power management embedded computer features and requires only a 5 V power supply, making it well suited for battery-run applications. Recent updates to the specification also introduced a reduced form factor module and extended support for mobile processors, increasing the specification’s viability for low-power, portable applications.
“Revision 2 of the Qseven specification allows for even smaller modules, taking into account the future will bring more highly integrated, powerful single-chip CPUs,” Eder says. “The 70 mm x 40 mm µQseven is about half the size of the regular Qseven (Figure 1). With support for USB 3.0, it is possible to get a really fast transfer rate to mobile devices. The major improvement with Revision 2 is full support of ARM CPUs to allow the mixed use of x86 and ARM modules with the same carrier board.”
“Qseven was defined from scratch for mobile and carries no old legacy interfaces,” Eder continues. “The maximum power consumption for Qseven is defined at 12 W – the first definition for COM Express defined a 188 W maximum – this example clearly shows the thinking behind the specification.”
refer to: http://smallformfactors.com/articles/qseven-coms-healthcare-mobile/
