Drobo Direct Attached Storage - 5 bay array with mSATA SSD acceleration - USB 3 and Thunderbolt ports (DRDR5A21) Form Factor: 5-Bay Port USB: 1 x USB3.0 Operating System: Mac OS X 10.9 or higher Windows 10 32 and 64 bit Windows 8 / 8.1 32 and 64 bit Windows 7 32 and 64 bit Port Others: 2 x Thunderbolt ports; second port for daisy chaining Thunderbolt devices (Mac OS X only) Power: AC Input - 100-240V AC~2A, 50-60Hz DC Output - 12V, 12.5A, 150W max Dimensions: 7.30 x 5.90 x 10.30 Weight: 8.50 lbs. Package Contents: Drobo 5D 2 m (6.6 ft) USB 3.0 cable 1.8 m (6 ft) power cord with power supply Quick Start Card Thunderbolt cable is not included