G-Technology G-RAID with Thunderbolt Professional Dual Drive Storage System 4TB (0G02289) Ultra-fast, high-performance Thunderbolt interface technology Double the data transfer rates of USB 3.0 and over 12 times faster than Firewire 800 RAID 0 for maximum performance. Supports multi-stream HDV, DVCPro HD, XDCAM HD, ProRes 422 and uncompressed SD workflows Dual Thunderbolt ports for easy access and daisy-chaining up to 6 Thunderbolt compatible peripherals Time Machine-ready, plug-and-play setup on Mac OS