Powered via USB connection or optional power adapter (included), S252BU33R lets users expand their laptop with high-performance storage without any additional driver or software requirements. External storage solution accommodates 2.5 in. SATA drives and delivers accelerated file transfers with UASP-enabled USB 3.0 performance. Compatible with Windows®, Mac®, Chrome OS™ and Linux® (2.4.x and up), dual-bay RAID enclosure offers built-in support for RAID 0, RAID 1, Spanning, and JBOD.