CRU RTX221-3QR DAS Array - 2 x HDD Supported - 4 TB Installed HDD Capacity - Serial ATA/300 Controller - RAID Supported 0, 1, 1 - 2 x Total Bays - 2 x 2.5"/3.5" Bay - External

The CRU® RTX®221-3QR is ideal for backup and external storage requirements for workgroups of all kinds, as well as SMB and home office environments. With its USB 3.0/2.0, eSATA, and FireWire 800 connectivity options, the RTX221-3QR provides fast backup or external storage for many kinds of applications. Users have a choice of setting up the RTX221-3QR as a RAID1 mirror, so data is automatically and simultaneously written to both drives, or as a large RAID0 volume to create a speedy solution that incorporates both drives into a single storage volume.