Adding Qx2 to any system is plug and play simple.eSATA | FireWire 800 | USB 3.0 Rugged and secure by design The Qx2's rugged brushed aluminum enclosure protects the internal drives while providing superior heat dissipation to keep them running cool, and the locking faceplate keeps the drives and RAID settings secure. Shock absorbing oversized rubber feet keep the Qx2 in one space while protecting the Qx2 from unwanted vibration. 5.31" width 6.96" height 9.65" depth 8.6 lbs Select the Qx2 that's right for you "Fast, Quiet and Nicely Priced." — The Mac Observer "This Thing Screams Quality and Speed!" — Sven Raferty, SvenOnTech "The QX2 ... Operated Flawlessly in All Modes, With Excellent Performance." — Lloyd Chambers, diglloyd "Very Impressed ... It Stood Up to Everything I Threw at It" — Jim Dalrymple, The Loop "Keeps Your Precious Data Completely Safe and Accessible To You At Ridiculously Fast Speeds." — Eric Yang, Gear Patrol "This is the UBER ENCLOSURE." — Ed Fritz, FritzImages "For the Performance, Capacity, and Connectivity, the Mercury Elite Pro Qx2 Is The One to Beat." — Daniel M. East, Layers Magazine "OWC's Latest Four-Drive Unit Doubles Maximum Data Transfer to a Smokin' 300MB/second." — Jonathan Barkey, American Photo Magazine "State of the Art" — Marcel Binder, Tom's Hardware "A Solid Win for Anyone Looking for Fast External Data Storage..." — Steve Manke, MacLive.net "More Storage Than You Could Possibly Need...A Workhorse Device" — Zack Stern, MacLife "Very Well Made, Very Sturdy, and Built to Last...I Have No Hesitations in Recommending the...Qx2" — Matt Beardsley, Photo Arts Monthly "A pretty cool solution if you have a lot of storage...a reliable system for all your data" — Mike Flaminio, Insanely Great Mac - Qx2 RAID 5 "Sturdy and well-designed enclosure ... a large storage array that's simple to use ... a solid option." — Kevin O'Brien, Storage Review.com - 16.0TB "...the Qx2 performed flawlessly..." — Doug Bardwell, Examiner.com - 16.0TB "... good price, excellent performance, and a wide range of storage options..." — Nick Mertes, Icrontic User Selectable RAID Settings Hardware RAID combines the Qx2's four drives to suit your workflow or project needs. RAID 0 RAID 5 RAID 10 span Capacity The total of all drives combined. Redundancy Dedicates no drives to redundancy. Data loss would occur should one drive fail. Performance Drive speeds are utilized together to provide the fastest performance possible. Capacity The total of all drives minus one for redundancy. Redundancy Provides data parity to ensure no loss of data if a drive fails.