New high-end Surface Book, Surface Pro 4 models crank up the firepower

Microsoft’sSurface BookandSurface Pro 4were some of the sleekest new devices of 2015, but they still suffered from some limitations that give power users pause. Namely, theinitial Surface configurationsoffered limited storage and memory options, with no opportunity to crank every aspect of the systems to 11. Good news, deep-pocketed PC enthusiasts: On Friday, Microsoft rolled out potent new Surface Book and Surface Pro 4 configurations with all the firepower you could ask for.To read this