CalDigit VR 4 TB 2 Drive Media RAID System with FireWire and USB Interface for Mac and Windows Reach the speed limit with guaranteed protection: The CalDigit VR can reach speeds up to 250MB/s in RAID 0 and over 110MB/s with RAID 1 protection. These high speeds allow for the most demanding tasks, like video editing. Manage, Monitor, Modify: The easy to read orange back lit LCD provides valuable data and added confidence that's just a glance away. Additionally LED status lights provide a visual representation of the CalDigit VR's operation. As if that's not enough an audible alert can also be set. A cooler design: The energy saving, ambient temperature controlled smart fan, runs extremely quiet ensuring proper airflow and advanced cooling without compromise. In addition the CalDigit VR is designed with an all aluminum enclosure to assist with heat dissipation. Security: The CalDigit VR includes a security lock, perfect for educational institutions, trade shows or any situation where the drive needs to be physically locked in place. Additionally Locking drive modules ensure that the drives don't get removed by accident. Easy configuration and monitor: The CalDigit VR comes with advanced software that provides easy management, monitoring, diagnostic reports, email notifications and firmware update capabilities. This provides users with interactive assurance.