Highlights usb 3 0 adds new faster usb 3 0 technology enabled by intel in ivy bridge replace the 2 usb 2 0 connectors on the back with usb 3 0 platform must support usb 3 0 for it to be enabled on dock otherwise port will support 2 0 display port 1 2 adds the ability to daisy chain displays 4 displays via 1 connector only enabled with discrete graphics on current generation of latitude laptops power supply 130w external ac adapter dell latitude video ports vga display