Features: - MB662 Series stores 2x 3.5" SATA I/II hard drives for maximum storage. - Plug & Play USB 2.0 + eSATA wih Slicom 5744 chipset support hot swap. - Built-in RAID function, adjustable to RAID 0 (FAST), RAID 1 (SAFE), SAFE 33, SAFE 50, BIG & JBOD mode by DIP switch. - User friendly Screw-less design just plug in the hard drive and play. - 40 mm cooling fan with adjustable speed control. - Multi-drive exchangeability & maintenance capabilities. - Built with Solid Aluminum Construction for body. - Built in security slot for security cable kit. - Compatible for both Windows and Mac. Specifications: Item Number: Pearl White MB662US-2S Host Interface: 1x USB2.0 + 1x eSATA (Port Multiplier) Drive Fit: 2 x 3.5" SATA I / II Chipset: Slicom 5744 Drive Type: Standalone with horizontal or vertical positioning Transfer Rate: Up to 480 Mb/sec. via USB2.0, Up to 3Gb/sec. via eSATA Insert & Extract connection via: 15 pin direct hard drive connection RAID Modes: RAID1(SAFE), SAFE33, SAFE50, RAID0 (FAST), BIG & JBOD RAID Setting: DIP Switch 3 Port Structure: Aluminum body w/ partial plastic Drive Cooling: Quiet Cooling Fan w/ Adjustable fan speed VR control, Aluminum body heat dispersion Indication: Mini LED located on front panel OS Requirement: Windows 98/SE/ME/2000/XP/VISTA ; Mac OS 9.0 or higher Dimension: (L x W x H) 60 x 134 x 195 mm / 2.4 x 5.3 x 7.7 in Weight: 800 g / 1.77 lbs.