SEDNA - USB 3.0 Internal 2.5" Hdd / SSD Dock with 1 extra USB 3.0 Port USB 3.0 connection, transfer speed up to 5Gbps Connect direct to mother board USB 3.0 connector Support 2.5" SSD or HDD One extra USB 3.0 port, you can connect your USB 3.0 devices in front of your PC Power / Hdd status LED