Redesigned from the ground up to meet the data storage needs of today's media creators and demanding professionals, Drobo 5D builds on the fully automated functionality of previous Drobos by adding blazing-fast performance. Drobo 5D is the highest-performing personal storage array on the planet. Fast, easy-to-use, expandable, flexible, and protected - exactly what's expected from a Drobo. Built on award-winning BeyondRAID technology with single- or dual-drive redundancy, Drobo 5D protects your data without any user interaction, even in the event of multiple drive failures. Thunderbolt I/O technology provides performance that's up to 5x faster than the previous-generation Drobo is the only storage array that offers Thunderbolt AND USB 3.0. This latest generation of USB also offers high-performance connectivity and is backward compatibility with any computer running compatible versions of Mac OS X or Windows. Data-Aware Tiering technology, is also available in this desktop Drobo. Intelligently uses the high-performance flash in SSDs to accelerate performance of the storage array. To keep capacity of the Drobo at a maximum, the Drobo Accelerator Bay accepts an industry-standard mSATA SSD, leaving all five 3.5" drives bays available for high-capacity HDDs. Drobo 5D includes a battery that protects all data in memory, or cache. When power spontaneously goes away, the battery keeps the Drobo alive long enough for the data to be written to non-volatile storage, ensuring your important information is safe. This battery recharges itself and is designed to last for the life of the product. It was designed from the ground up to provide very high capacity without taking up a lot of your valuable desk space. Drobo 5D is also significantly quieter than previous-generation Drobos due to its tuned, large, variable-speed cooling fan. You can even configure Drobo to spin down drives when they're not in use to further reduce noise and save energy.