Sonnet Echo 15 Thunderbolt 2 Docking Station with Blu-Ray Player Connect your peripherals to the Echo dock; connect your computer to and disconnect it from the dock using one Thunderbolt cable (sold separately) Thunderbolt 2 (backward compatible with 10Gbs Thunderbolt), USB 3.0, SATA and eSATA, FireWire 800, Gigabit Ethernet, and audio Front and rear USB 3.0 and audio ports, plus the ability to be placed horizontally or vertically, provide the dock great flexibility in use USB 3.0 ports can charge your iPad, iPhone, or iPod, even while the computer is disconnected, off, or sleeping; all four ports provide 7.5W, optimized for quick charging Built in Blu-ray Player in the optical drive