Massive CapacityThe My Book™ Duo drive has up to 20TB1 capacity with a single cable. Free up valuable space on all your computers. Store and back up your photo, video and music collections, and important documents in one reliable place. RAID 0 Ready Out of the BoxReady to perform at maximum speed and capacity in default mode, RAID-0. Reconfigure the drive to RAID-1 for redundancy (data mirroring), or use it as two independent drives (JBOD) with the included WD Drive Utilities™ software. RAID Optimized WD Red™ DrivesThe My Book™ Duo drive comes with RAID-optimized WD Red™ drives inside to deliver high-speed, quality storage to rely on. RAID-optimized firmware is perfect for two-disk array systems with auto management of drive operations to help ensure read/write cycle data integrity. USB 3.1 Gen 1-Ready, USB 3.0 CompatibilityCompatible with USB 3.1 Gen 1 and USB 3.0, the My Book™ Duo drive works to deliver high-speed connectivity no matter the interface. Includes both USB Type-C™ to Type-C and Type-C to Type-A cables. USB 3.0 Hub PortsThe My Book™ Duo drive can serve as a quasi-docking station with 2x USB 3.0 Type-A hub ports for accessories, including additional storage, keyboard and mouse, card readers, USBs, or phone sync and charge. 256-bit AES Hardware Encryption and Password ProtectionThe My Book™ Duo drive comes with 256-bit AES Hardware Encryption with WD Security™ software built in to help keep private content secure. Set a personalized password to activate hardware encryption and data protection.