SanDisk Professional 16TB G-RAID Mirror - External HDD, RAID with Redundancy, Thunderbolt 3, USB (10Gbps), 7200RPM Ultrastar Hard Drive, Up to 250MB/s Read in RAID 1 - SDPHH2H-016T-NBAAD

Up to 16TB of max capacity on two 7200RPM Ultrastar Enterprise-class Hard Drives Inside (1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment and RAID configuration. For RAID products, storage capacity is based on RAID 0 mode.)
Ships in RAID 1 for peace of mind with transfers rates up to 250MB/s read, or use the hardware RAID selector for up to 500MB/s read in RAID 0 (1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, RAID configuration and other factors)
PRO-BLADE SSD Mag slot to easily add SSD capacity and performance for fast transfers, editing, and backup without adding to your workspace.
Color-coded cable indicators to connect the right cables and get the most out of your device performance.
High-performance Thunderbolt 3 (40Gbps) interface and USB (10Gbps)