The Ultimate Thunderbolt 2 Powered USB 3.0 Connectivity Solution! The RocketStor 6324U is optimized for today"s fastest USB 3.0 devices, and is well suited for a wide-range of applications including portable/removable storage, storage expansion, personal media libraries, and backup solutions. The 4 independent 5Gb/s USB 3.0 ports are ideal for high-speed USB storage, but are fully capable of supporting all industry standard USB 2.0 and 3.0 peripherals, including printers & scanners, card readers and interface devices. Four Dedicated 5Gb/s USB 3.0 Ports: Unlike conventional Thunderbolt I/O adapters or hubs which share multiple connections with a single USB controller, the RocketStor 6324U takes full advantage of Thunderbolt 2 transfer bandwidth. Each of the 4 USB 3.0 ports is powered by a dedicated 5Gb/s USB 3.0 controller. This unique per-port performance architecture ensures maximum transfer throughput for all 4 connections, even if used simultaneously! Powerful USB Charging Station: With a 90W External power supply, the RocketStor 6324U is capable of charging up to 4 USB devices simultaneously! In addition, the RocketStor 6324U can be used as a standalone charging station - it can work without connecting to or powering on the host system. Thunderbolt daisy chain ready: Equipped with Dual Thunderbolt 2 Ports, the RocketStor 6324U can support Thunderbolt daisy chain configurations of up to 6 Thunderbolt devices.