The GTD720 features three USB 3.0 ports, a gigabit Ethernet port for access to a wired network connection, an HDMI port, and two Thunderbolt™ 2 ports capable of daisy-chaining up to six devices. A dedicated front-facing USB fast-charging port can charge your handheld devices even when your computer is turned off or completely disconnected -so you’ll never have to turn on your computer just to charge your phone, tablet, or other device again. The front-facing optical line-in/line-out ports provide 5.1 digital audio editing and playback capabilities. All ports have been strategically placed on the dock's body to minimize visual clutter and maximize convenience, making multitasking almost effortless.