CineRAID CR-H458 Hardware RAID 0, 1, 10, 3 and RAID 5, support 4 x 3.5 Hot Swappable Drive Bays USB 3.0 eSATA RAID SubSystem Drive: SATA OS Supported: Windows 7 / Windows Vista / XP Home Edition SP-1, Professional SP-1 / Windows 2000 Professional SP-3 / Windows ME / Windows 98SE or later versions Mac OS X 10.3 or later (recommended 10.3.9 or later) Linux 32-bit / 64-bit Power Supply: 1 x H458 Enclosure 1 x eSATA Cable 1 x USB 3.0 Cable 4 x HDD Screw-less Trays 1 x Power Adapter 1 x Power Cord 1 x User manual and Software CD Dimensions: 6.50 x 6.50 x 9.00 Weight: 6.50 lbs.