WD 20TB My Book Duo Desktop RAID External Hard Drive - USB 3.1 Gen 1-ready, USB 3.0 compatibility, 2x USB 3.0 hub ports, 256-bit AES hardware encryption | WDBFBE0200JBK-EESN MASSIVE CAPACITY DESKTOP RAID STORAGE The My Book™ Duo drive has massive capacity for storing photos, videos, documents and music. RAID-0 mode provides super-fast performance with up to 360MB/s 2 sequential read speeds (using the USB Type-C™ port). Switch to RAID-1 configuration for redundancy and to mirror data on model : WD 20TB My Book Duo Desktop RAID External Hard Drive - USB 3.1 Gen 1-ready tag : External Hard Drives