Highway Max is a particularly good deal: it’s $15 less expensive than Highway Pro, yet more powerful, as both of its USB outputs now support 2.1A charging. Everything else—the colors, the materials, the size—is otherwise the same. Just Mobile continues to use plastic for the body, and very nice diamond-print metal for the portion that sticks out of the outlet. The only other difference is what comes in the package. Instead of a Dock…
