quote: "USB connectors are not general purpose connectors and are not designed to be used in support of other technology applications or standards or as combo connectors."
quote: Alongside the Ethernet, HDMI, VGA and USB2 connectors is the Thunderbolt port. Unlike Apple's and Intel's implementation, which takes the form of a Mini DisplayPort-compatible connector, Sony has decided to use a USB3 port. The underlying technology is still the same as Thunderbolt - Intel's Light Peak – but since it doesn't use the Mini DisplayPort connector, it can't be branded as Thunderbolt. Perversely, squeezing Light Peak into a USB3 connector is against the rules set by the USB Implementers Forum, so it can't be branded as USB3 either.