G-Technology G-DRIVE ev SSD Evolution Series USB 3.0 External Solid State Drive 512GB (0G03099) Solid-State drive (SSD) with high-speed USB 3.0 interface Up to 400MB/s transfer rates via USB 3.0 Insert into Evolution Series G-DOCK ev with Thunderbolt for up to 480MB/s Plug-and-play setup on Mac OS but easily reformatted for Windows Standalone and Evolution Series compatible