So what's this ThunderBolt stuff, and why is it in your new MacBook Pro? Intel just broke it down for us, and now we'll do the same for you. Simply put, ThunderBolt's a familiar-looking port, a brand-new chip, and a cord, which allows devices to pipe two data streams simultaneously -- in both directions -- over a single cable at up to 10 gigabits per second to start, primarily using PCI Express x4 for data and DisplayPort for video. The ThunderBolt controller chip -- required for the system, but Intel says it's hardware-agnostic and doesn't require an Intel process
