The WD My Book Duo 24TB USB 3.0 RAID Array features two 3.5" drive bays that each sport a 12TB hard drive to provide a total capacity of 24TB for USB Type-C and USB Type-A systems. The two included hard drives are WD Red drives designed for high-performance and reliability. WD has configured the drives in RAID 0 and lets you reconfigure them in RAID 1 or JBOD, using the included WD Drive Utilities software program. The My Book Duo comes with a USB 3.0 Type-C port, plus a USB 3.0 Type-C to Type-C cable and a USB 3.0 Type-C to Type-A cable. With RAID 0 and USB 3.0 technology, the My Book Duo delivers sequential read speeds of up to 360 MB/s.