This SanDisk Professional G-RAID MIRROR external hard drive offers professional-grade, high-performance storage for fast, reliable backups and project workflows. With up to 44TB of maximum capacity on two 7200RPM Ultrastar Enterprise-class Hard Drives, it ships in RAID 1 for peace of mind, providing data redundancy with transfer rates up to 260MB/s read. Alternatively, use the hardware RAID selector for up to 510MB/s read in RAID 0. The PRO-BLADE SSD Mag Slot allows for easy addition of SSD capacity and performance for faster transfers, editing, and backup without cluttering your workspace. Color-coded cable indicators help ensure you connect the right cables to achieve optimal device performance. Select your desired hardware RAID setting directly on the device.