Data Storage 3,5" USB-C connector, interface USB 3.2 Gen 1 (USB 3.0), capacity 16000GB, for 2 piece(s) discs WD My Book Duo 16TB offers high speed RAID disk space and great capacity for storing videos, photos, music and documents.  RAID-0 mode provides super-fast performance with up to 360MB/s sequential read speeds (using the USB Type-C port). Switch to RAID-1 configuration for redundancy and to mirror data on the WD Red drives inside. A USB Type-C port with all cables included makes it universally compatible (supports USB 3.1 Gen 1/3.0/2.0). Two USB 3.0 Type-A hub ports deliver flexibility for additional accessories.Key features of the WD My Book Duo 16TB external driveRAID 0 for maximum performance, RAID 1 for redundancy or separate unitsAssembled with NAS optimized discs (WD Red)Hi-Speed ??USB 3.1 Gen 1 (Type C and A)With 256-bit AES hardware encryption through WD Security software2-port USB 3.0 hub for easy peripheral connectivity